Request InfoApplied Optoelectronics Inc. (AOI)Transmitter optical subassembly (TOSA) lasers for digital and coarse wave division multiplexing applications are offered by Applied Optoelectronics Inc. The hermetically sealed devices feature high output power and 5.6-mm TO-style packaging, available in SC and LC styles. Low-noise light sources, the lasers are uncooled up to 4 Gb/s and have an optional extended temperature range from –40 to 85 °C. Fabry-Perot or distributed feedback lasers are available. The modules meet the environmental requirements of the European Restriction on Hazardous Substances regulations.See full productRelated content from Photonics MediaPRODUCTSPhotonics Spectra April 2023 IssueLaser Phase Lock SystemThe OE5000 Hi-Q Laser Phase Lock System from OEwaves Inc. allows the offset locking of two individual lasers separated in frequency by as much as 50 GHz. 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