Features：   Uncooled 1550nm Fabry-Perot MQW Laser Diode,Built-in InGaAs PD Monitor ? High-Speed Operation Up to 1.25Gbps ? Wide Operating Temperature Range: -40℃-+85℃ ? Laser Welding Assembly Method：  High Reliability and Long Operation Life ? Various Connector Type: SC, FC, ST Application：   Transceiver Module ? Data Communication   Telecommunication ? Gigabit Ethernet