CyOptics Adds Detectors to its 40Gbps Optical Component Portfolio; High-Performance Indium Phosphide Detector for both Short-Reach and Long-Reach Applications.Business Editors & High-Tech Writers WALTHAM, Mass.--(BUSINESS WIRE)--Sept. 19, 2001 CyOptics Inc., a leading developer of 10Gbps and 40Gbps active optical components, today announced the expansion of its optical component family to include a 40Gbps photodetector A device that senses light. It uses the principle of photoconductivity, which is exhibited in certain materials that change their electrical conductivity when exposed to light. See photoelectric, photocell and photodiode. . The detector complements CyOptics' current product line of optical transmission modulators, by providing a solution for both transmit and receive optics. CyOptics' 40Gbps detector is based on a high-performance, edge- illuminated waveguide waveguide, device that controls the propagation of an electromagnetic wave so that the wave is forced to follow a path defined by the physical structure of the guide. PIN photodiode A light sensor (photodetector) that allows current to flow in one direction from one side to the other when it absorbs photons (light). The more light, the more the current. Used to detect light pulses in optical fibers and other light-sensitive applications, it works the opposite of a , providing high responsivity, high electrical bandwidth and high overload tolerance. CyOptics' detector offers bandwidth in excess of 50GHz, with responsivity of 0.7 A/W A/W Awaiting A/W Alloy Wheels A/W A-Wing (Star Wars) A/W Actual Weight A/W Alternate Weeks A/W Automatic Win (gaming) , and overload tolerance of 7dBm. High responsivity enables its use in demanding unamplified short-haul applications, where power levels at the receiver can be very low. High bandwidth makes it suitable for applications utilizing out of band FEC See forward error correction. FEC - Forward Error Correction (forward error correction A communications technique that can correct bad data on the receiving end. Before transmission, the data are processed through an algorithm that adds extra bits for error correction. If the transmitted message is received in error, the correction bits are used to repair it. ), typically used in long-haul transmission, at higher-speed applications, where it can increase the line rate of 40Gbps transmission to 43Gbps and beyond. High overload tolerance is critical for long-haul applications since the optical amplifiers that are utilized can cause high power levels and high power spikes at the receiver. "Our photodetector's combination of high responsivity, bandwidth and overload make it suitable for the full range of 40Gbps applications, including short-reach, metro and long-haul transmission," said Irene Lam, CyOptics product line manager for detectors. "The detector provides a compact, cost-effective solution for next-generation optical transmission systems." The detector utilizes a structure similar to CyOptics' 10 and 40Gbps electro-absorption modulators (EAMs), providing consistent design and manufacturing efficiencies. Since it too is an Indium Phosphide-based device, it benefits from the wealth of Indium Phosphide phosphide Any of a class of chemical compounds in which phosphorous is combined with a metal. Phosphides exhibit a wide variety of chemical and physical properties. Phosphides that are rich in metal have high melting points and are hard, brittle, and chemically inert; these experience developed over the years in DFB DFB acronym for dark, firm, dry meat. Called also dark cutting beef. lasers, PIN detectors and EMLs. Waveguide PIN detectors offer two distinct advantages over conventional surface-illuminated detectors commonly used in today's 10Gbps systems. At 40Gbps, the bandwidth requirements quadruple while the need to maintain the efficiency of the detector is critical. The waveguide structure allows for both high bandwidth and responsivity without the inherent tradeoff of a conventional detector. The waveguide provides a longer absorptive length in which to capture light, thus high responsivity, while also allowing a thin active area that increases the bandwidth of the detector. When the detector is reverse biased, it generates photocurrent pho·to·cur·rent n. An electric current produced by illumination of a photoelectric material. proportional to the input optical power converting optical to electrical signals. The detector works in tandem with the EAM (1) (Enterprise Asset Management) The management and control of the information technology assets within the enterprise. The asset management repository includes a description of the asset as well as contract information pertaining to its acquisition. to create an optical transmission link. CyOptics devices are based on Indium Phosphide (InP). Unlike Lithium Niobate, InP is a semiconductor, enabling the cost-effective, high-volume manufacturing achieved in other semiconductor devices. In addition, its high refractive index enables much smaller devices and allows integration of multiple functions on one chip. InP has been used since the early 1980s in numerous optoelectronic components, including lasers and receivers. Its use in high-speed modulation paves the way to highly integrated, compact devices for optical transmission. About CyOptics CyOptics was founded in early 1999 to develop breakthrough technology for 10 and 40Gbps active optical components. The company is headed by veterans of Lucent, Intel and Lasertron, and has a superlative technical team, including leaders in the field of Indium Phosphide optical component development and manufacturing, and optoelectronic device packaging. The company has headquarters in Waltham, with offices in Los Angeles, and research and development facilities in Israel. CyOptics has full optoelectronic component manufacturing capability, including Indium Phosphide wafer fabrication, regrowth Re`growth´ n. 1. The act of regrowing; a second or new growth. The regrowth of limbs which had been cut off. - A. B. Buckley. and characterization, as well as microelectronic packaging, test & qualification facilities. |
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