Applied Fiber Optics Introduces 2x4 WDM.FREMONT, Calif.--(BUSINESS WIRE)--August 4, 1997--Applied Fiber Optics fiber optics, transmission of digitized messages or information by light pulses along hair-thin glass fibers. Each fiber is surrounded by a cladding having a high index of refractance so that the light is internally reflected and travels the length of the fiber Inc. (AFO AFO Ankle-foot orthosis ) Monday introduced a 2x4 bi-directional wavelength-division multiplexer (WDM (1) (Wavelength Division Multiplexing) A technology that uses multiple lasers and transmits several wavelengths of light (lambdas) simultaneously over a single optical fiber. ) for two fiber transmit (TX) and receive (RX) functions over a 30-nm wavelength band at 1310 or 1550 nm. Applications for the in-line, all-fiber device include telecommunications, fiber-to-the-home, optical fiber amplifiers, optical fiber sensors, CATV (Community Antenna TV) The original name for cable TV. It used a single antenna at the highest location in the community in order to deliver a quality signal to homes in areas with hilly terrain or other interference. and test instruments. Wavelength Division Multiplexing See WDM. (communications) wavelength division multiplexing - (WDM) Multiplexing several Optical Carrier n signals on a single optical fibre by using different wavelengths (colours) of laser light to carry different signals. (transmitting information on multiple wavelengths of light) allows expansion of data transmission capacity without laying down additional cables. AFO's 2x4 WDM solution enables interexchange carriers, who are running out of room on their fiber for high-bandwidth services, to increase global telecommunications capacity on a single fiber for long-haul access in a reliable and cost-effective manner. The device is based on the company's proprietary fused, cascaded coupler Refers to a myriad of different types of sockets for plugging in electric or electronic cables or devices. See network coupler. technology, which offers a more rugged design than other WDM solutions. The 2x4 WDM module provides low insertion loss The amount of loss attributed to a particular device being used in (inserted into) the system. For example, a circuit added to filter out unwanted frequencies may reduce the output current by some amount. See injection loss. (0.6dB) and high isolation (34dB) in each RX channel. It has a low insertion loss polarization dependence of less than 0.15 dB and a minimum directivity of less than 55dB. The device, which is frequency insensitive, is environmentally stable and reliable. AFO designs, develops and manufactures fiber optic couplers and FCF-DWDM components. The company sells these components into a variety of applications including high speed telecommunications, CATV, local area networks and optical fiber amplifiers. Manufacturing, management, marketing and sales are handled at the company's headquarters, located at 46758 Lakeview Blvd., Fremont, CA 94538. The company can be contacted by phone at 510/440-9608 or toll free 888/335-0338; and by fax at 510/440-9668. -0- NOTE TO EDITORS: Color photos available upon request. CONTACT: Applied Fiber Optics, Fremont Jim Campbell, 510/440-9608, ext. 106 Fax: 510/440-9668 or The Schraff Group Anita Price, 714/556-6800 Fax: 714/556-1739 |
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