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Oct 2003
Accent Optical Technologies, a Bend, Ore., supplier of optoelectronics and silicon semiconductor process control systems, announced that a high-brightness light-emitting diode (LED) manufacturer in Japan has ordered three of its RPM4000 photoluminescence mapping systems, to be used in manufacturing high-brightness gallium nitride LED wafers.   . . .   K2 Optronics Inc., a Sunnyvale, Calif., provider of lasers for the telecommunications, cable television, sensing and test and measurement industries, and Fabrinet, a Thailand-based maker of optical, mechanical and electronic components, modules and subassemblies, announced they have signed a strategic agreement under which Fabrinet will manufacture K2 Optronics' EC-48 external cavity lasers, which are 2.5 Gb/s, directly modulated dense wavelength division multiplexing lasers with up to 650 km reach.   . . .   Spire Corp., a Bedford, Mass., maker of manufacturing equipment and medical devices, announced it has received a US patent for a method to implant aluminum oxide in gallium arsenide and other III-V semiconductor wafers for isolation of integrated circuit lasers and optical waveguides (patent 6,635,559, issued Oct. 21, "Formation of Insulating Aluminum Oxide in Semiconductor Substrates").

A sub-field of photonics that pertains to an electronic device that responds to optical power, emits or modifies optical radiation, or utilizes optical radiation for its internal operation. Any device that functions as an electrical-to-optical or optical-to-electrical transducer. Electro-optic often is used erroneously as a synonym.
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