Axcel Announces Availability of High Performance 980 nm Chip Products.Business/Technology Editors MARLBOROUGH, Mass.--(BUSINESS WIRE)--Feb. 11, 2002 Axcel Photonics Inc., a leading developer of InGaAs based active optical components, today introduced its 980 nm pump laser A laser used as the pump for an optical amplifier or other laser. See EDFA and laser. product line for erbium erbium (ûr`bēəm) [from Ytterby, a town in Sweden], metallic chemical element; symbol Er; at. no. 68; at. wt. 167.26; m.p. 1,529°C;; b.p. 2,863°C;; sp. gr. 9.05 at 25°C;; valence +3. doped fiber amplifiers (EDFAs). These products, which utilize Axcel's proprietary facet design and coating process, can achieve reliable, kink free powers of greater than 700 mW and meet the rigorous failure rate standards for telecom devices today. As additional channels are added in WDM (1) (Wavelength Division Multiplexing) A technology that uses multiple lasers and transmits several wavelengths of light (lambdas) simultaneously over a single optical fiber. transmission systems, greater power is required of the optical amplifiers, and consequently the pump lasers that power these systems. When operating at higher powers, the increase brings the laser closer to the point where Catastrophic Optical Damage Catastrophic optical damage (COD) is a failure mode of high-power semiconductor lasers. It occurs when the semiconductor junction is overloaded by exceeding its power density and absorbs too much of the produced light energy, leading to melting and recrystallization of the (COD) at the laser facet can occur. COD is the primary reliability concern in high power 980 nm lasers, and has been a limiting factor A factor or condition that, either temporarily or permanently, impedes mission accomplishment. Illustrative examples are transportation network deficiencies, lack of in-place facilities, malpositioned forces or materiel, extreme climatic conditions, distance, transit or overflight rights, to increasing the performance of these products. The Axcel facet design has significantly increased the threshold at which COD occurs. Typical industry values of 12 MW/cm2 have been nearly doubled to 20 MW/cm2 dramatically increasing both the level at which damage occurs to the front facet of the laser, and reliable output power of the device. Axcel has also made significant breakthroughs in sub-mount design in the area of thermal management. The sub-mount has been optimized to provide extremely efficient transfer of heat, increasing the point at which thermal "roll-over" occurs. The result is a product, which performs at a superior level, both in reliability and output power. Currently three grades of devices are available: 150+ mW for uncooled, low cost, Metro pump applications, 300+ mW for mid to low power pump modules, and 500+ mW for high power applications. The devices are shipped as individual chips or mounted on Axcel's standard sub-mounts. Custom sub-mount configurations are available. About Axcel Photonics Located in Marlborough, Massachusetts Marlborough is a city in Middlesex County, Massachusetts, United States. The population was 36,255 at the 2000 census. The name of this town is sometimes spelled as Marlboro, rather than Marlborough, which is the official spelling. the company's original financing came from Comstellar Technologies. The company was founded in June of 2000, and was formed to focus on the design and manufacture high-performance, high reliability, low-cost optical components for a variety of network applications. Current and future product offerings address the existing and growing Dense Wavelength Division Multiplexing See WDM. (DWDM (Dense WDM) The term given to wavelength division multiplexing (WDM) when significantly more channels were being added. Since WDM is increasingly more "dense" all the time, both terms are used synonymously. See WDM. DWDM - wavelength division multiplexing ) market. For more information, see the Axcel web site at www.axcelphotonics.com or contact us at sales@axcelphotonics.com. About Comstellar Technologies, Inc. Comstellar Technologies, Inc. (www.comstellar.com) is the premier organization for architecting innovative companies that will develop core disruptive technologies to dramatically improve the capabilities of the communications network The transmission channels interconnecting all client and server stations as well as all supporting hardware and software. and drive the next generation of communications. Its founders have a proven record of leadership and expertise in the communications industry at companies such as Telcordia, IBM (International Business Machines Corporation, Armonk, NY, www.ibm.com) The world's largest computer company. IBM's product lines include the S/390 mainframes (zSeries), AS/400 midrange business systems (iSeries), RS/6000 workstations and servers (pSeries), Intel-based servers (xSeries) , Sun, StratumOne, and Cerent. Comstellar, with headquarters in New Jersey and offices in California, has raised approximately $150 million in investment capital, led by Accel Partners and New Enterprise Associates. Redwood Ventures, the venture capital affiliate of Comstellar Technologies, is a separate fund financing the broader universe of communications companies developing innovative and emerging technologies. The current fund is organized as Redwood Ventures IV, LP. |
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