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Search Results - Optical fiber

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An optical fiber (or fibre) is a glass or plastic fiber that carries light along its length. Fiber optics is the overlap of applied science and engineering concerned with the design and application of optical fibers. Optical fibers are widely used in fiber-optic communications, which permits transmission over longer distances and at higher bandwidths (data rates) than other forms of communications. Fibers are used instead of metal wires because signals travel along them with less loss, and they are also immune to electromagnetic interference. Fibers are also used for illumination, and are wrapped in bundles so they can be used to carry images, thus allowing viewing in tight spaces. Specially designed fibers are used for a variety of other applications, including sensors and fiber lasers.

Light is kept in the core of the optical fiber by total internal reflection. This causes the fiber to act as a waveguide. Fibers which support many propagation paths or transverse modes are called multi-mode fibers (MMF), while those which can only support a single mode are called single-mode fibers (SMF). Multi-mode fibers generally have a larger core diameter, and are used for short-distance communication links and for applications where high power must be transmitted. Single-mode fibers are used for most communication links longer than 550&_160;metres (1,800&_160;ft).

Joining lengths of optical fiber is more complex than joining electrical wire or cable. The ends of the fibers must be carefully cleaved, and then spliced together either mechanically or by fusing them together with an electric arc. Special connectors are used to make removable connections.

Fiber optics, though used extensively in the modern world, is a fairly simple and old technology. Guiding of light by refraction, the principle that makes fiber optics possible, was first demonstrated by Daniel Colladon and Jacques Babinet in Paris in the early 1840s. John Tyndall included a demonstration of it in his public lectures in London a dozen years later.[1] Tyndall also wrote about the property of total internal reflection in an introductory book about the nature of light in 1870 "When the light passes from air into water, the refracted ray is bent towards the perpendicular... When the ray passes from water to air it is bent from the perpendicular... If the angle which the ray in water encloses with the perpendicular to the surface be greater than 48 degrees, the ray will not quit the water at all it will be totally reflected at the surface.... The angle which marks the limit where total reflection begins is called the limiting angle of the medium. For water this angle is 48°27', for flint glass it is 38°41', while for diamond it is 23°42'."[2][3]

Showing 1 to 25 of 130 Articles matching 'Optical fiber' in related articles.
Pages: 1 | 2 | 3 | 4 | 5 | 6 | Next >>

1. Optical Fiber Identifier Featuring Low Bending Loss and Highly Efficient Output
November 19, 2009

Toronto, Canada - GAO Instruments (www.GAOInstruments.com) offers its advanced and easy-to-use optical fiber identifier. This optical fiber identifier conveniently tests and detects optical signals, modulated signals and the presence or absence of signals.It is well-suited for the installation and maintenance,rerouting or restoration of telecommunications and CATV systems, test labs and other fiber optic projects. The portable identifier,model A0640003,efficiently identifies the traffic direction and frequency tone without any damage to the fibers. It works at wavelengths from 900nm to 165... (read more)

Author: Perry Keller

2. Optical Multi Meter Ideally Suited for Single Mode Fiber
November 19, 2009

Toronto, Canada – GAO Tek Inc. (www.GAOTek.com) has announced the release of its optical multi-meter ideal for fieldwork. The easy-to-use meter can act as an optical power meter, a stable light source or a loss measurement system. It features a backlit LCD screen and selectable power sources: AC-DC adaptor, rechargeable Ni-Cd battery or dry cells. The optical meter is specifically designed for single mode fiber measurement and provides a wavelength calibration function at four wavelengths. The optical multi-meter, model 2498A, measures optical loss and checks the performance of optical parts.... (read more)

Author: Perry Keller

3. Optical Multi-Meter Ideally Suited for Single Mode Fiber
November 19, 2009

Toronto, Canada - GAO Tek Inc. (www.GAOTek.com) has announced the release of its optical multi-meter ideal for fieldwork. The easy-to-use meter can act as an optical power meter, a stable light source or a loss measurement system. It features a backlit LCD screen and selectable power sources: AC-DC adaptor, rechargeable Ni-Cd battery or dry cells. The optical meter is specifically designed for single mode fiber measurement and provides a wavelength calibration function at four wavelengths. The optical multi-meter, model 2498A, measures optical loss and checks the performance of optical parts.... (read more)

Author: Perry Keller

4. All-Digital Fiber Optic Video Transceiver Module for Video Digital Encoding
November 13, 2009

Toronto, Canada - GAO Comm (www.GAOComm.com) has released its fiber optic digital video transceiver module - an all-digital device which is designed to support the transmission of two-way video over one optical fiber. The all-digital fiber optic video transceiver module is commonly used in closed-circuit TV (CCTV) monitoring systems.Its hot-pluggable design and wide dynamic range provide convenience for installation,maintenance and operation. This fiber optic digital video transceiver module,model GFS110, uses 10-bit/20MHz sampling technology for video digital encoding ensuring the quality... (read more)

Author: Perry Keller

5. Mini Fiber Optic Power Meter Customized for CATV Operators
November 13, 2009

Toronto, Canada – GAO Fiber Optics (www.GAOFiberOptics.com) has announced the availability of its cost-effective mini fiber optic power meter. This compact power meter is customized for single mode fiber optic cable networks, CATV networks and local networks. It is also an ideal tool for the debugging and maintenance of telecommunication networks. This mini fiber optic power meter, model 3026, tests optical power within the wavelength range of 780nm to 1700nm and features a compact size, a light weight of less than 200g, a rugged housing and ease of use. The meter offers a quick response with... (read more)

Author: Perry Keller

6. Full-Featured Laser Light Source
November 12, 2009

Toronto, Canada – GAO Fiber Optics (www.GAOFiberOptics.com) has released its compact fiber optic laser light source for use in the field or in lab applications. The light source performs fast and accurate measurements on long-distance and local optical networks. It also measures the loss in an optical fiber at a range of up to 200km when used in conjunction with a Laser Power Meter. This portable laser light source, model XG3020, offers high stability for accurate fiber optic testing. It provides stable power output at wavelengths of 1310nm or 1550nm through a single output connector. The lig... (read more)

Author: Perry Keller

7. Easy-to-Use Handheld Optical Power Meter
November 06, 2009

Toronto, Canada – GAO Fiber Optics (www.GAOFiberOptics.com) has announced the availability of its innovative handheld optical power meter intended for absolute optical power measurement as well as relative loss measurement of fiber optics. It features a compact design, wide range of power measurements, highly accurate test results and an automatic self calibration function. The portable meter tests optical power within a wavelength range of 800 to 1600nm. It is an ideal tool for the maintenance and installation of telecommunication and CATV networks. This optical power meter, model LP-216, of... (read more)

Author: Perry Keller

8. Mini Optical Light Source Weighs Only 80g
November 06, 2009

Toronto, Canada - GAO Fiber Optics (www.GAOFiberOptics.com) has released its mini optical light source which combines high performance with durability in an extremely small-sized package.The light source is specially designed for use in telecommunication and CATV testing and maintenance as well as in fiber optics test labs.It features highly stable and accurate output power and wavelength. The mini optical light source, model 08221, uses an FP-LD emitter and works at a wavelength range of 1330nm to 1550nm. The optical device is light in weight, easy-to-use and cost-effective.It includes an... (read more)

Author: Perry Keller

9. 10/100Mbps Adaptive Ethernet Fiber Converter Deals with
November 06, 2009

Toronto, Canada - GAO Comm (www.GAOComm.com) recommends this fast 10/100Mbps adaptive Ethernet fiber converter that converts optical-to-electric media. It carries out mutual conversion between 10Base-T/100Base-TX pair electrical signals and 100Base-FX optical signals. The fast Ethernet fiber converter is especially suited for long-distance transmission networks of 10/100Mbps fast Ethernet. It is designed to ensure an efficient, reliable and high performance network. GAO Comm's fast Ethernet fiber converter, model MB610A, features low power consumption and low heat dissipation and is therefore... (read more)

Author: Perry Keller

10. Easy-to-Use Fiber Optic Power Meter
November 05, 2009

Toronto, Canada - GAO Comm (www.GAOComm.com) has released its portable fiber optic power meter, which delivers excellent performance This cost-effective meter is intended for installation, calibration and maintenance of telecommunications and CATV networks. The optical power meter features a small size, light weight and conducts multi-mode measurements making it well-suited for field use. GAO Comm's highly accurate power meter, model 3025, tests optical power within the wavelength range of 1310nm to 1550nm. The meter conducts absolute measurements, reference measurements and fiber loss measur... (read more)

Author: Perry Keller

11. Innovative OTDR with a Large LCD Screen
November 05, 2009

Toronto, Canada - GAO Instruments (www.GAOInstruments.com) has launched its high performance Optical Time-Domain Reflectometer (OTDR) .This well-designed optical instrument is intended for engineers and technicians to measure connection or transmission loss and locate faults or breaks in fiber optics.The mini-OTDR is commonly deployed in the manufacturing, construction and maintenance of fiber optic networks. This rugged mini-OTDR features a high dynamic range ensuring accurate signal processing and a short event dead zone. It has a large color LCD screen,with touch panel, to clearly displ... (read more)

Author: Perry Keller

12. iHighly Stable Optical Light Source
November 05, 2009

Toronto, Canada – GAO Instruments (www.GAOInstruments.com) has released its handheld optical light source which offers high stability and accuracy for fiber optic testing. The portable light source is a valuable tool for field or laboratory testing of optical communication systems. It is commonly used for maintenance of telecommunications and CATV systems, and in fiber optic test labs. The handheld optical light source, model A0630004, used in conjunction with an optical power meter, measures the optical loss of a single-mode or multi-mode fiber cable. As one of GAO Instruments’ premiere opt... (read more)

Author: Perry Keller

13. Highly Flexible 3Com Compatible Gigabit Ethernet SFP
November 05, 2009

Toronto,Canada -GAO Fiber Optics (www.GAOFiberOptics.com), a leading supplier of transceivers, has added the 3Com compatible transceivers to its product collection.The 1000BASE-SX SFP transceiver modules are used for MMF at an 850nm wavelength.The affordable transmission and receiver modules are fully compatible with original 3Com transceivers. These hot-pluggable transceivers are commonly used in diverse network of topologies connecting electrical circuitry with optical or copper networks. The transceivers, model 3CSFP91, are designed to support SONET,Gigabit Ethernet, Fibre Channel and o... (read more)

Author: Perry Keller

14. SC Connector
November 03, 2009

SC stands for Subscriber Connector – the general function push and pull style connector that was developed by NTT. Subscriber Connector has a benefit in keyed duplexibility to assist in sending and receiving channels. SC Connectors are often utilized for latest network applications. SC is a snap in connector that used widely in single mode systems. The connector is as well accessible in a duplex configuration. SC connector has a push and pull locking device that is very elastic yet offers low insertion loss and high repeatability. It has been rapidly substituting legacy connectors l... (read more)

Author: rachel thompson

15. Fast Ethernet Fiber Converters for Optical-to-Electrical Medium Conversion
November 02, 2009

Toronto, Canada - GAO Fiber Optics (www.GAOFiberOptics.com), a leading supplier of fiber optic instruments, has announced the availability of its adaptive fast Ethernet fiber converters for optical-to-electrical medium conversion. The fiber converter series performs flow control, reduces broadcast packets and ensures convenient network upgrading. They are especially useful in 10/100Mbps fast Ethernet long-distance transmission networks. With applications including switching, storing and forwarding technology, each member of the fiber converter family implements data transmission between optica... (read more)

Author: Perry Keller

16. Understand Fiber Optics
November 01, 2009

Optic fibers can be made into very thin and flexible strands. Because of this property this can be used in medical field for various diagnoses. These strands can be inserted to various part of the body's, including blood vessels even lungs. This field of the medical science which uses only a small incision for treatment is called as Endoscopy. In endoscope instrument is made like that it will carry two bundle of optical fibers in which one will provided with light other one transmits light back from the body which is reflected from the tissue. The reflected image will provide detailed image of... (read more)

Author: Samuel Lukes

17. Hot-Swappable 1000Base-LX Cisco Compatible Transceivers
October 29, 2009

Toronto, Canada - GAO Fiber Optics (www.GAOFiberOptics.com) recommends its Cisco compatible SFP-GE-L Cisco compatible transceivers with considerable savings over name-brand products.The hot-swappable I/O devices are designed to support SONET,Gigabit Ethernet, Fibre Channel and other communications standards.These transceivers are plugged into module sockets and connect electrical circuitry with optical or copper networks. Each member of the transceiver family conforms to IEEE802.3z 1000BASE-LX standard. GAO Fiber optics supplies these short wavelength modules in addition to optical transce... (read more)

Author: Perry Keller

18. Pocket Size Fiber Optic Power Meter
October 28, 2009

Toronto, Canada – GAO Tek Inc. (www.GAOTek.com) has announced the release of its handheld fiber optic power meter. This well-designed meter performs fast and accurate measurements and is ideal for engineers working on single mode optical cable networks. It is used for the installation, debugging and maintenance in telecommunication networks, CATV networks, and local network projects. The meter features a compact size, light weight and low power consumption, which ensures easy and efficient performance. This portable fiber optic power meter, model 3023, has a high resolution, backlit, large ch... (read more)

Author: perry k

19. Pocket Size Fiber Optic Power Meter
October 27, 2009

Toronto, Canada - GAO Tek Inc. (www.GAOTek.com) has announced the release of its handheld fiber optic power meter. This well-designed meter performs fast and accurate measurements and is ideal for engineers working on single mode optical cable networks. It is used for the installation, debugging and maintenance in telecommunication networks, CATV networks, and local network projects. The meter features a compact size, light weight and low power consumption, which ensures easy and efficient performance. This portable fiber optic power meter, model 3023, has a high resolution, backlit, large ch... (read more)

Author: Perry Keller

20. Wavelength Service in Optical Transport Networks
October 27, 2009

Optical WDM (Wavelength Division Multiplexing) networks are networks that deploy optical WDM fiber links where each fiber link carries multiple wavelength channels. An All Optical Network (AON) is an optical WDM network which provides end-to-end optical paths by using all optical nodes that allow optical signal to stay in optical domain without conversion to electrical signal. AONs are usually optical circuit-switched networks where circuits are switched by intermediate nodes in the granularity of a wavelength channel. Hence a circuit-switched AON is also called a wavelength routing network wh... (read more)

Author: Paul Ngai

21. Water Resistant Handheld Optical Power Meter
October 27, 2009

Toronto, Canada - GAO Instruments (www.GAOInstruments.com) recommends its handheld optical power meter intended for absolute optical power and relative loss measurements in fiber optics. The cost-effective power meter is an essential test instrument for telecommunications and CATV maintenance and is suited for use in fiber optics test labs and equally in field testing due to its dust and water resistant design. This rugged optical power meter, model A0670005, features a low battery warning and quick response time without requiring warm-up. The meter tests optical power within the wavelength r... (read more)

Author: Perry Keller

22. High Performance Optical Light Source
October 26, 2009

Toronto, Canada - GAO Tek Inc. (www.GAOTek.com) has released its handheld optical light source offering high accuracy and reliability for evaluating a wide range of optical devices and systems including WNM. It is commonly used for the maintenance of telecommunication networks, CATV systems, fiber optic test labs, and generic cabling systems (GCS). This high performance light source is also ideal for the manufacture, testing and maintenance of passive optical components. This easy-to-use optical light source, model 08232, provides a highly stable output power of +/-0.05dB/15mins and +/-0.1dB/... (read more)

Author: Perry Keller

23. Fiber Optic Cables - A Peek at Fundamental Designs and Distinctive Connectors
October 26, 2009

Fiber optics is one of the technologies employed in transporting details. Telecommunication systems and computer technologies are two of the particular applications it provides. The transmission of information commences from the use of a thin, flexible glass or a plastic tube with optical fibers. With the existence of modulated light waves, the coded pulses of details are conveyed. The uses of fiber optic cables operate for the precise needs of science and technology.In order to appreciate what fiber optic cables are, it is ideal to examine what comprises it. These cables are created ... (read more)

Author: Agustin Steele

24. Handheld Fiber Optic Power Meter Covers a Full Range of Applications
October 26, 2009

Toronto, Canada - GAO Fiber Optics (www.GAOFiberOptics.com) has announced the availability of this well-designed fiber optic power meter covering a full range of fiber optic applications. This portable power meter is suitable for use in communication engineering of LAN, CATV and long-distance fiber optic trunk and active and passive fiber optic devices. It conveniently performs optical measurements for optical power and loss at five calibrated wavelengths. The power meter features a portable, durable design, light weight and simple, three-key operation making it ideal for on-the-spot field mea... (read more)

Author: Perry Keller

25. Compact, Energy-Saving Visible Fault Locator
October 22, 2009

Toronto, Canada - GAO Comm (www.GAOComm.com) has launched its compact and energy-saving visible fault locator, a visible red laser source and fault locator specifically used to find fiber faults in fiber jumpers, patch panels, enclosures, connectors and couplers.This smart fault locator is suitable for both single mode and multimode fibers and is an ideal tool for the installation and maintenance of optical networks. The handheld visible laser source fault locator, model 811,is shipped with FC, ST and SC adapters and supports CW and 2Hz alternative optical output modes.This compact fault l... (read more)

Author: Perry Keller

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