Coretek Opto Corp Produces optical modules as well as fixed and pluggable optical transceivers. http://www.coretek.com.tw/
Corona Optical Systems, Inc. Manufactures a pair of small, 12 port, 850nm transmitters and receivers for data rates up to 3.35 Gbps per channel. http://www.coronasys.com/
ExceLight Communications, Inc Offers transceivers, transmitters, receivers, lasers, photodiodes, GaAs integrated circuits, and passive components for optical communications. http://www.excelight.com/
Finisar Corp. Provides fiber optic solutions for the fiber channel, gigabit ethernet and CATV markets. http://www.finisar.com/
Luminent, Inc Produces transceivers for the CDWM, long-wavelength, and FTTx (fiber curb, home, and business) markets. http://www.luminentinc.com/
Opnext, Inc Develops pluggable and fixed mount transmitters, receivers, transcievers, transponders, and discrete optical modules for rates ranging from 155 Mbps to 10 Gbps. http://www.opnext.com/
OPTICAL ZONU Inc. Produces active and passive fiber optical modules, especially for PON and FDDx applications. http://www.opticalzonu.com/
OptoIC Technology, Inc Produces single and parallel optical transceivers ranging from 155 Mbps to 10 Gbps. http://www.optoictech.com/
Picolight, Inc. Makes single and parallel fiberoptic transceivers. http://www.picolight.com/
Stratos Lightwave, Inc. Manufactures fiber optic components, including single and parallel transceivers, fiber assemblies, WDM modules. http://www.stratoslightwave.com/
TriQuint Semiconductor, Inc. Develops optical modules as well as custom and off-the-shelf optical components, including EML (Electro-absorptive Modulated Laser), DFB (Distributed Feedback) and FP (Fabry-Perot) lasers and APD / PIN detectors. http://www.tqs.com/