Refimprove date May 2007 Opticalcommunication is any form of telecommunication that uses light as the transmission medium . An opticalcommunication system consists of a transmitter , which encodes a message into an optical signal information theory signal , a channel communications channel , which ... optical signal. Forms of opticalcommunication File Bundesarchiv Bild 102 09520, Kieler Hafen, Abfahrt der Deutschen Hochseeflotte.jpg thumb Naval signal There are many forms of non technological opticalcommunication, including body language and sign language . Techniques such as semaphore line s, ship flags , smoke signals , and beacon beacon fires were the earliest form of technological opticalcommunication. The heliograph uses a mirror to Reflection physics reflect sunlight to a distant ... an Aldis lamp to communicate with planes whose radio failed. Free space opticalcommunication is also used today in a variety of applications. Optical fiber communication Main article Fiber optic communication . Optical fiber is the most common type of channel for optical communications, however, other types of optical waveguide s are used Light Peak within computers or communications gear, and have ... , which extended link distances at significantly lower cost. Free space opticalcommunication Main article Free space opticalcommunication . Free Space Optics FSO systems are generally employed for last ... Technical Reports Server accessdate 4 October 2011 ref See also Commons category Opticalcommunication ... communication. Optical fiber cable Optical interconnect Parallel optical interface Interconnect bottleneck ... Opticalcommunication Telephony Telecommunications Category Optical communications ca Comunicaci ptica ... trials. The transmitters in optical fiber links are generally light emitting diode s LEDs or laser diode s. Infrared light, rather than visible light is used more commonly, because optical fibers transmit ... optical phase and frequency modulation have been demonstrated in the lab. The need for periodic ... more details
of the two heads. Free space opticalcommunication FSO is an opticalcommunication technology that uses ... such as optical fiber cable or an optical transmission line . The technology is useful where the physical connections are impractical due to high costs or other considerations. History Opticalcommunication ... kHz range. In outer space , the communication range of free space opticalcommunication is currently ... communication ref cite journal title An Intra Chip Free Space Optical Interconnect authors Jing Xue ... YouTube vR4N6MTx vw video showing Lichtsprechger t 80 in use DEFAULTSORT Free Space OpticalCommunicationOpticalcommunication Telecommunications Category Telecommunications equipment Category Optical ... journal Nature , September 1880. ref Its first practical use came in military communication systems ... of optical fiber networks for civilian uses was at its peak. Many simple and inexpensive consumer remote control s use low speed communication using infrared IR light. This is known as consumer IR technologies. Usage and technologies Free space point to point optical links can be implemented using infrared laser light, although low data rate communication over short distances is possible ... of free space optical communications. Free Space Optics are additionally used for communications between ... mile 2 way all electronic optical contact url http www.modulatedlight.org optical comms optical ... distances of millions of kilometers, using optical telescopes as beam expanders. ref cite ... silicium.dk pdf speciale.pdf accessdate June 28, 2011 Danish Optical Communications in Deep Space, University of Copenhagen ref The distance records for optical communications involved detection and emission of laser light by space probes. A two way distance record for communication was set by the Mercury ... free space optical communications have been proposed using a laser N Slit interferometer N slit interferometer ... for secure free space optical communications 527 m intra interferometric path length , J. Opt. 13 ... more details
other uses Communication is the activity of conveying information . Communication has been derived from the Latin word communis , meaning to share. Communication requires a sender, a message , and an intended ... at the time of communication thus communication can occur across vast distances in time and space. Communication requires that the communicating parties share an area of communicative commonality. The communication process is complete once the receiver has understood the message of the sender. Feedback is critical to effective communication between parties. Human communication Human spoken ... for symbols which enable communication with others around them. Languages seem to share certain properties ... contact , sign language , paralanguage , haptic communication , chronemics , and media such as pictures ... also defines the communication to include the display of text, Braille , tactile communication ... information and communication technology . ref Convention on the Rights of Persons with Disability, Article 2, Definition ref Nonverbal communication Refimprove section date June 2011 Nonverbal communication describes the process of conveying meaning in the form of non word messages. Research shows that the majority of our communication is non verbal, also known as body language. Some of non verbal communication includes chronemics , haptics , gesture , body language or Human position posture facial expression and eye contact, object communication such as clothing , hairstyles , architecture ... in pictorial form. Citation needed date January 2012 Oral communication Oral communication , while primarily referring to spoken verbal communication, can also employ visual aids and non verbal elements to support the conveyance of meaning. Oral communication includes speeches, presentations, discussions, and aspects of interpersonal communication. As a type of face to face communication, body ... than informational content. This type of communication also garners immediate feedback. Written communication ... more details
Infobox album See Wikipedia WikiProject Albums Name Communication Type Studio album Artist Leah Dizon Cover Leahcommunicationcdonly.jpg Released August 20, 2008 Genre J pop Length Language Japanese language Japanese , English language English Label Victor Entertainment Reviews Last album Destiny Line 2007 This album Communication br 2008 Next album Misc Extra album cover Upper caption CD DVD Type Studio Album Cover Leahcommunicationcddvd.jpg 300px Lower caption CD DVD cover Singles Name Communication Type Studio Single 1 Love Paradox Single 1 date March 26, 2008 Single 2 Vanilla Leah Dizon song Vanilla Single 2 date June 25, 2008 Communication is the second studio album by American born Japanese pop singer Leah Dizon . It was released on September 12, 2007 by Victor Entertainment . Dizon herself also wrote or co wrote 10 of the tracks, along with composing 2 herself. It was released in a CD only and CD DVD format and it includes the title tracks from her two latest singles, Love Paradox and Vanilla Leah Dizon song Vanilla , as well as two b sides. ref http ameblo.jp leahdizon news Leah Dizon Official Blog What sNew What sNew powered by Bot generated title ref ref http www.jvcmusic.co.jp Information A020707.html news Victor Entertainment Bot generated title ref ref http www.towerrecords.co.jp sitemap CSfCardMain.jsp?GOODS NO 1844392&GOODS SORT CD 101 TOWER.JP Leah Dizon Bot generated title ref ref http www.neowing.co.jp detailview.html?KEY VICL 62900 Communication & 93 Bot generated title ref According to one press release, Lost At Sea and BxKxRxxx are said to be rock tunes, her first . ref http www.sanspo.com ... It is Dizon s last recording before announcing her marriage and pregnancy in October 2008 on her Communication ... Chino length7 5 23 title8 Communication writer8 Leah Dizon, Yoshiaki Fujizawa extra8 Fujizawa length8 ... albums ja Communication ... more details
Optical wireless is the combined use of opticaloptical fiber optical fibre and wireless radio radio frequency communication to provide telecommunications telecommunication to clusters of end points which are geographically distant. The high capacity optical fibre is used to span the longest distances, and a lower cost wireless link carries the signal for the last mile to nearby users. Sources http searchmobilecomputing.techtarget.com sDefinition 0,,sid40 gci760820,00.html Definition Optical Wireless , SearchMobileComputuing website. Opticalcommunication Telecommunications telecom stub Category Optical communications Category Local loop ... more details
Optical networking can refer to Opticalcommunication Fiber optic communication Synchronous optical networking Optical Transport Network OTN Passive optical network disambig Short pages monitor This long comment was added to the page to prevent it being listed on Special Shortpages. It and the accompanying monitoring template were generated via Template Longcomment. Please do not remove the monitor template without removing the comment as well. ... more details
Unreferenced date December 2009 An optical link is a communications link that consists of a single end to end optical circuit. A cable of optical fiber , possibly concatenated into a dark fiber link, is the simplest form of an optical link. Other forms of optical link can include single colour links over a wavelength division multiplex infrastructure, and or links that use optical amplifier s to compensate for attenuation over long distances. Other forms of optical links include free space opticalcommunication links. Also in the railways optical is used in two forms depending upon the whether the feeding station is main or not. Thus for main stations it is sain to be long hall and for all remaining stations it is to be short hall. See also colbegin 3 Light Peak Optical interconnect Parallel optical interface Interconnect bottleneck OpticalcommunicationOptical cable Transimpedance amplifier Photo diode VCSEL PIN diode Green computing InfiniBand InfiniBand Trade Association Fibre channel HDMI PCI Express Active cables Small form factor pluggable transceiver Terabit Ethernet 100 Gigabit Ethernet 10 Gigabit Ethernet Optoelectronics Data center High performance computing Cloud computing CXP connector Active Cables C Form factor Pluggable Fiber optic communication List of device bandwidths colend DEFAULTSORT Optical Link Category Optical communications Telecom stub ... more details
Optical engineering is the field of study that focuses on applications of optics . Optical engineers design components of optical instrument s such as lens optics lenses , microscope s, telescope s, and other equipment that utilizes the properties of light . Other devices include optical sensors and measurement systems, laser s, fiber optic communication systems, optical disc systems e.g. CD , DVD , etc. Because optical engineers want to design and build devices that make light do something useful, they must understand and apply the science of optics in substantial detail, in order to know what is physically possible to achieve physics and chemistry . However, they also must know what is practical in terms of available technology, materials, costs, design methods, etc. As with other fields of engineering, computer s are important to many perhaps most optical engineers. They are used with instruments, for simulation, in design, and for many other applications. Engineers often use general computer tools such as spreadsheet s and programming language s, and they make frequent use of specialized optical software designed specifically for their field. Optical engineering metrology uses optical methods to measure micro vibrations with instruments like the laser speckle interferometer or to measure the properties of the various masses with instruments measuring refraction . See also Optical lens design Optician Optical physics SPIE Code V Zemax HEXAGON optical software References references Further reading Driggers, Ronald G. ed. 2003 . Encyclopedia of Optical Engineering. New York Marcel Dekker. 3 vols. ISBN 978 0824709402 Bruce H. Walker, Historical Review,SPIE Press, Bellingham, WA. ISBN 9780819478771. http link.aip.org link doi 10.1117 3.818136.ch2 FTS Yu & Xiangyang Yang 1997 Introduction to Optical Engineering , Cambridge University Press , ISBN 0251574935 . Technology footer Engineering stub Category Optics Category Engineering disciplines ar de Feinoptiker ... more details
Unreferenced stub auto yes date December 2009 File Optical Circulator symbol.jpg thumb Optical Circulator symbol An optical circulator is a special optical fiber fiber optic component that can be used to separate optical signals that travel in opposite directions in an optical fiber , analogous to the operation of an electronic circulator . An optical circulator is a three port device designed such that light entering any port exits from the next. This means that if light enters port 1 it is emitted from port 2, but if some of the emitted light is reflected back to the circulator, it does not come out of port 1, but instead exits from port 3. Circulators can be used to achieve bi directional transmission over a single fiber. Because of its high optical isolator isolation of the input and reflected optical powers and its low insertion loss , optical circulators are widely used in advanced fiber optic communications communication systems and fiber optic sensor applications. Optical circulators are non reciprocal optics, which means that changes in the properties of light passing through the device are not reversed when the light passes through in the opposite direction. This can only happen when the symmetry of the system is broken, for example by an external magnetic field . A Faraday rotator is another example of a non reciprocal optical device. See also Optical isolator http patft.uspto.gov netacgi nph Parser?Sect1 PTO2&Sect2 HITOFF&p 1&u 2Fnetahtml 2FPTO 2Fsearch adv.htm&r 1&f G&l 50&d PTXT&S1 5909310.PN.&OS pn 5909310&RS PN 5909310 US Patent 005909310 DEFAULTSORT Optical Circulator Category Optical devices Optics stub ca Circulador ptic ... more details
of optics is that it can reduce power consumption, but an opticalcommunication system will typically ... large that optical communications will comparatively use a lower amount of power. As communication ... Multi Behavioural Architecture using Free Space OpticalCommunication in Proceedings of the IEEE ...Today s computers use the movement of electrons in and out of transistors to do logic. Optical or Photonic ... projects focus on replacing current computer components with optical equivalents, resulting in an optical ... term prospects for commercial optical computing, since optical components could be integrated into traditional computers to produce an optical or electronic hybrid. However, optoelectronic devices ... of messages. All optical computers eliminate the need for optical electrical optical OEO conversions ... which use principles of optical computing, e.g., optical correlators . Such devices can be used for detecting and tracking objects, for example. ref cite book title Optical Computing A Survey for Computer Scientists chapter Chapter 3 Optical Image and Signal Processing last Feitelson first Dror G. year 1988 publisher MIT Press location Cambridge, MA isbn 0262061120 ref Optical components for binary ... . To replace electronic components with optical ones, an equivalent optical transistor is required ... manner to the voltage response of an electronic transistor. Such an optical transistor ref Jain, K. and Pratt, Jr., G. W., Optical transistor , Appl. Phys. Lett., Vol. 28, 719 1976 . ref ref name jainprattpatent Jain, K. and Pratt, Jr., G. W., Optical transistors and logic circuits embodying the same , U.S. Pat. 4,382,660, issued May 10, 1983. ref can be used to create optical logic gates , ref ... of optical computers will they be able to compete with semiconductor based electronic computers in terms of speed, power consumption, cost, and form factor? Opponents of the idea that optical computers ... at low cost, low power, and high speed. For optical logic to be competitive beyond a few niche applications ... more details
Optical interconnect is a way of communication by optical cables. ref name register cite news url http www.theregister.co.uk 2009 09 23 light peak title Intel unfurls copper killing optical cables last Myslewski first Rik date 2009 09 23 publisher The Register accessdate 2009 09 27 ref Compared to traditional cables, optical wires are capable of a much higher Bandwidth computing bandwidth , from 10 Gbit s up to 100 Gbit s. ref name cnet cite news url http news.cnet.com 8301 30685 3 10360047 264.html title Intel s Light Peak One PC cable to rule them all last Shankland first Stephen date 2009 09 23 publisher CNet accessdate 2009 09 27 ref The technology is currently being introduced as a way to link computers to mobile devices, ref name pcworld cite news url http www.pcworld.com businesscenter article 172480 intel connects pcs to devices using light.html title Intel Connects PCs to Devices Using Light last Shah first Agam date 2009 09 23 publisher PC World magazine PCWorld accessdate 2009 09 27 ref as well as on motherboard s and devices within computers. ref name cnet ref name iptronics cite news url http www.iptronics.com 36209 Optical 20interconnects.html title Parallel Optical Interconnects last Bek first Jesper date 2008 06 09 publisher IPtronics accessdate 2010 04 09 ref IBM has created a prototype optical interconnect using wavelength division multiplexing WDM . They suggest that if successful, this technology could lead to the first computer capable of exascale computing a computer that can perform a billion billion computations per second . ref Ross, Valerie. April, 2011. The Light Driven Computer . Popular Science . Volume 278, 4, Page 58. ref A waveguide emits eight ..., tech . http www.physorg.com news151345921.html. January 16, 2009. June 8, 2011. ref See also Opticalcommunication Parallel optical interface Thunderbolt interface Interconnect bottleneck Optical ... to be transferred concurrently. This multi wavelength beam travels through the chip, with optical switches ... more details
Unreferenced stub auto yes date December 2009 Communication physics is one of the applied branches of physics . It deals with various kinds of communication systems Electronic communicationOpticalcommunication Computer communication Telephone Telegraph Radio Television Mobile phone communication Nanoscale network DEFAULTSORT Communication Physics Category Telecommunications Category Article Feedback 5 Physics stub es F sica de las comunicaciones ... more details
Unreferenced date December 2009 The path that light takes in traversing an optical system is often called the optical path . The physical length of an optical device can be reduced to less than the length of the optical path by using folded optics . The optical path length as defined in optics is the length of the path multiplied by the index of refraction of the medium. See also Optical path length DEFAULTSORT Optical path Category Optics Optics stub de Strahlengang it Cammino ottico sv Str lg ng ... more details
Merge from Erbium doped waveguide amplifier discuss Talk Optical amplifier Merger proposal date August 2009 An optical amplifier is a device that amplifies an optical signal information theory signal directly, without the need to first convert it to an electrical signal. An optical amplifier may be thought of as a laser without an optical cavity , or one in which feedback from the cavity is suppressed. Optical amplifiers are important in opticalcommunication and laser physics . There are several ... problem for opticalcommunication applications. However it provides the possibility for gain in different ... types of optical amplifiers. In doped fiber amplifiers and bulk lasers, stimulated emission in the amplifier s gain medium causes amplification of incoming light. In semiconductor optical amplfiers ... Doped Fiber Amplifier Doped fiber amplifiers DFAs are optical amplifiers that use a dopant doped optical fiber as a gain medium to amplify an optical signal. They are related to fiber laser ... window of an optical amplifier is the range of optical wavelengths for which the amplifier yields ... ions, the glass structure of the optical fiber, and the wavelength and power of the pump laser ... levels occurs when the ions are incorporated into the glass of the optical fiber and thus the amplification ... vary in width depending on the characteristics of the optical fiber in question and the power of the burning ... by selectively exciting those ions that are more aligned with the optical field vector of the pump ... doped fiber without birefringence , the PDG would be inconveniently large. Fortunately, in optical ... of silica based optical fiber. Two bands have developed in the third transmission window the Conventional ... in amplifiers. The optical fiber amplifier was invented by H. J. Shaw and Michel Digonnet at Stanford ... with extremely high output power tens of kilowatts . Semiconductor optical amplifier Semiconductor optical amplifier redirects here Semiconductor optical amplifiers SOAs are amplifiers which use ... more details
About the optical component the optoelectronic component Opto isolator An optical isolator , or optical diode , is an optical component which allows the transmission of light in only one direction. It is typically used to prevent unwanted feedback into an optical oscillator , such as a laser cavity . The operation of the device depends on the Faraday effect which in turn is produced by magneto optic effect , which is used in the main component, the Faraday rotator . File Isolator diagram.GIF thumbnail right 200px Figure 1 The optical circuit symbol for an isolator Theory main Faraday effect The main component of the optical isolator is the Faraday rotator. The magnetic field, math B math , applied to the Faraday rotator causes a rotation in the polarization of the light due to the Faraday effect. The angle of rotation, math beta math , is given by, math beta nu B d , math , where, math nu math is the Verdet constant of the material amorphous or crystalline solid, liquid, or gaseous of which the rotator is made, and math d math is the length of the rotator. This is shown in Figure 2. Specifically for an optical isolator, the values are chosen to give a rotation of 45 . Polarization dependent ... optical systems. This is because the polarization of the source is typically maintained by the system. In optical fibre systems, the polarization direction is typically dispersed in non polarization ... File Optical isolator.GIF thumbnail right 250px Figure 3 Polarization independent isolator The polarization ... important optical element in an isolator is the Faraday rotator. The characteristics that one looks ... garnet crystal TGG . For long distance fibre communication, typically at 1310 nm or 1550 ... higher than 30 Decibel dB . Optical isolators are different from 1 4 wave plate based isolators ... and then the negative direction. This allows the higher isolation to be achieved. Optical isolators ... e.html Telecommunication isolators, good pictures Category Optical devices ca A llant ptic ... more details
science and engineering concerned with the design and application of optical fibers is known as fiber optics . Optical fibers are widely used in fiber optic communication s, which permits transmission ... be manipulated to improve performance. Applications Optical fiber communication Main Fiber optic communication .... From this information, a good rule of thumb is that signal using optical fiber for communication ...Image fibreoptic.jpg thumb right A bundle of optical fibers Image Fiber optic illuminated.jpg thumb A TOSLINK fiber optic audio cable being illuminated at one end Image Optical fibre junction box.jpg thumb right An optical fiber junction box. The yellow cables are Single mode optical fiber single mode fibers the orange and blue cables are Multi mode optical fiber multi mode fibers 50 125 m OM2 and 50 125 m OM3 fibers respectively. An optical fiber American and British English spelling differences re, er or optical fibre is a flexible, transparent fiber made of a pure glass silica not much thicker ... forms of communication. Fibers are used instead of metal wires because signals travel along them with less ..., including sensor s and fiber laser s. Optical fibers typically include a transparency transparent core optical fiber core surrounded by a transparent Cladding fiber optics cladding material with a lower ... distance communication links and for applications where high power must be transmitted. Single mode fibers are used for most communication links longer than convert 1050 sp us m ft . Joining lengths of optical fiber is more complex than joining electrical wire or cable. The ends of the fibers ... or by fusion splicing fusing them with heat. Special optical fiber connector s for removable ... cite book last Bates first Regis J title Optical Switching and Networking Handbook publisher McGraw ... to act as an optical fiber. ref cite journal author Wells, J. issue 6210 pmid 2918918 doi 10.1038 ... medical examinations by Heinrich Lamm in the following decade. Modern optical fibers, where ... more details
Unreferenced date August 2009 Optical microspheres photonic atoms are high quality factor optical resonator s used for active and passive photonic applications such as microlaser cavities and filters. Category Optics optics stub ... more details
unreferenced date September 2009 Image optical train.jpg thumb 250px right An optical train showing the arrangement and angle of lenses and mirrors to guide the laser. Optical train also called optical assembly is the arrangement of lens optics lenses to guide Line of sight propagation line of sight and lasers. The position and angle of lenses are adjusted to guide a laser through the path required. optics stub Category fiber optics ... more details
Mergeto diffraction limit date June 2009 Optical superresolution is a general term for optical techniques which operate beyond the normal diffraction limit . See also Super resolution Superoscillation Category Physical optics physics stub optics stub ... more details
Image Optical Interleaver.gif thumb 400px right Illustration of the function of an optical interleaver and de interleaver An optical interleaver is a 3 port passive fiber optics fiber optic device that is used to combine two sets of dense wavelength division multiplexing DWDM channels odd and even channels into a composite signal stream in an interleaving way. For example, optical interleaver takes two multiplexed signals with 100 GHz spacing and interleaves them, creating a denser DWDM signal with channels spaced 50 GHz apart. The process can be repeated, creating even denser composite signals with 25 GHz or 12.5 GHz spacing. The device can be used in a reverse direction, forming an optical deinterleaver that separates a denser DWDM signal into odd channels and even channels. See schematic diagram. For example, in most DWDM equipment, the standard channel spacing is 100 GHz. But spacing the signal carrying frequencies every 50 or even 25 GHz can double or even quadruple the number of channels per fiber. Thus, optical interleaver can expand the number of channels per fiber, and devices and or networks can be upgraded without requiring that all devices be upgraded. Optical interleaver is based on multiple beam interference . Currently, there are two approaches to building optical interleaver 1 Step phase Michelson interferometer , and 2 birefringence Birefringent crystal networks. The former is based on Michelson interferometer combined with Gires Tournois interferometer . Image Interleaver Spectrum.jpg frame 622px center Transmission spectra of 50 100 GHz optical interleaver at three temperatures See also Optical add drop multiplexer External links http www.optoplex.com Optical Interleaver.htm Optical Interleaver for fiber optic communications Category Fiber optic communications Interleaver, optical Category Optical devices Interleaver, optical Category Photonics ... more details
For the optic axis of a crystal Optic axis of a crystal Image Optical axis en.png thumb 300px Optical axis coincides with red ray and rays symmetrical to optical axis pair of blue and pair of green rays propagating through different lenses. An optical axis is a line along which there is some degree of rotational symmetry in an optics optical system such as a camera lens or microscope . The optical axis is an imaginary line that defines the path along which light propagates through the system. For a system composed of simple lens optics lenses and mirror s, the axis passes through the center of curvature of each surface, and coincides with the axis of rotational symmetry . The optical axis is often coincident with the system s mechanical axis, but not always, as in the case of off axis optical system s. For an optical fiber , the optical axis is along the center of the fiber core , and is also known as the fiber axis . See also Ray optics Cardinal point optics Boresight References FS1037C DODDIC Category Geometrical optics de Optische Achse Optik et Optiline telg eo Optika akso ko id Sumbu optis it Asse ottico nl Optische as optica ja pl O optyczna ru sk Optick os sl Opti na os tr Optik eksen uk zh ... more details
Orphan date April 2010 Cleanup date April 2010 The Optical Wizard is an online automated lens calculator, invented by William Bridson and a group of engineers from Navitar Inc. in Rochester, NY . The Optical Wizard received a patent from the US government in 2006, as the first automated lens selection tool of its kind. The tool is utilized by optical, mechanical, and electrical engineers, along with researchers and physicists to find quick automated, calculation free solutions for machine vision , automation, testing, measuring, assembly, inspection, electronic, and biomedical imaging applications. It comprises the steps of generating a set of user requirements that include a set of data defining the user s optical imaging specification generating a second data set defining optical characteristics of each of a plurality of standardized optical devices generating a set of programmed instructions for comparing the first data set with the second data set and, using a programmed computer to automatically select a combination of the optical devices that function to essentially satisfy the user s optical imaging specifications. References http www.encyclopedia.com doc 1G1 157642196.html http patft.uspto.gov netacgi nph Parser?Sect1 PTO1&Sect2 HITOFF&d PALL&p 1&u 2Fnetahtml 2FPTO 2Fsrchnum.htm&r 1&f G&l 50&s1 7,149,662.PN.&OS PN 7,149,662&RS PN 7,149,662 http www.imveurope.com products product details.php?product id 858 http news.thomasnet.com fullstory 801216 External links http www.opticalwizard.com Optical Wizard Category Optical devices Category Web applications ... more details
Refimprove date December 2009 Optical storage is a term from engineering referring to the storage of data on an optically readable medium. Data is recorded by making marks in a pattern that can be read back with the aid of light , usually a beam of laser light precisely focused on a spinning disc. An older example, that does not require the use of computers, is microform . There are other means of optically storing data and new methods are in development. Optical storage differs from other computer data storage data storage techniques that make use of other technologies such as magnetism or semiconductor s. Optical storage can range from a single drive reading a single CD ROM to multiple drives reading multiple discs such as an optical jukebox . Single compact discs can hold around 700MB megabyte s and optical jukebox es can hold much more ref Compact Disc http en.wikipedia.org wiki Compact Disc ref . The term optical drive usually refers to a device in a computer that can read CD ROM s or other optical disc s. It is estimated that in the year 2007, optical storage represents 27 of the world s technological capacity to store information ref name HilbertLopez2011 http www.sciencemag.org content 332 6025 60 The World s Technological Capacity to Store, Communicate, and Compute Information , especially http www.sciencemag.org content suppl 2011 02 08 science.1200970.DC1 Hilbert SOM.pdf ... also Data storage device the broader topic of all devices that store data. Optical Media board disc modern optical discs such as CD ROM s and related formats. Optical Jukebox Optical disc drive Optical tape more capacity than magnetic tape but not as cost effective Magneto optical drive combines Optical ... data storage media. HDSS Holographic Data Storage Systems potential new optical storage technology. 3D optical data storage potential new optical storage technology. Optical Storage Technology Association industry trade association References Reflist Optical storage media DEFAULTSORT Optical Storage ... more details
Optical physics is a subfield of atomic, molecular, and optical physics . It is the study of the generation of electromagnetic radiation , the properties of that radiation, and the interaction of that radiation with matter , especially its manipulation and control. It differs from general optics and optical engineering in that it is focused on the discovery and application of new phenomena. There is no strong distinction, however, between optical physics, applied optics, and optical engineering, since the devices of optical engineering and the applications of applied optics are necessary for basic research in optical physics, and that research leads to the development of new devices and applications. Often the same people are involved in both the basic research and the applied technology development. Researchers in optical physics use and develop light sources that span the electromagnetic spectrum from microwave s to X ray s. The field includes the generation and detection of light, linear and nonlinear optics nonlinear optical processes, and spectroscopy . Laser s and laser spectroscopy have transformed optical science. Major study in optical physics is also devoted to quantum optics and Coherence physics coherence , and to femtosecond optics. In optical physics, support is also provided in areas such as the nonlinear response of isolated atoms to intense, ultra short electromagnetic ... field. Other important areas of research include the development of novel optical techniques for nano optical measurements, diffractive optics , low coherence interferometry , optical coherence tomography , and near field microscopy . Research in optical physics places an emphasis on ultrafast optical science and technology. The applications of optical physics create advancements in telecommunication ..., Cambridge University Press, 2009, ISBN 978 0 521 56457 2. Handbook of atomic, molecular, and optical ... Optical Physics Category Atomic, molecular, and optical physics Category Optics bn ... more details
Matt Quinn , better known as Optical , is a drum and bass Music producer producer and DJ from England . He is best known for his work with Ed Rush , fellow head of the Virus Recordings label, and as a pioneer of the techstep and neurofunk sound. His first single for Metalheadz , To Shape the Future Raging Calm 1997 and his collaborative material with Ed Rush, such as the Wormhole album Wormhole , album 1998 were archetypal developments in the style. The duo followed this debut album with The Creeps 2000 and The Original Doctor Shade 2003 , as well as countless singles and remixes. He also notably did most of the engineering and production work for Grooverider s album Mysteries of Funk . In addition, he has produced solo, and released in collaboration with many artists, including Trace artist Trace , Dom & Roland , Fierce band Fierce , and his brother Matrix artist Matrix . External links Rolldabeats artist artist optical name Optical Discogs artist artist Optical name Optical Discogs artist artist Ed Rush 26 Optical name Ed Rush & Optical Persondata Metadata see Wikipedia Persondata . NAME Optical ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Optical Category English record producers Category English DJs Category English drum and bass musicians Category Living people UK electronic musician stub ... more details
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