Sourcelight 16Gbps SFP+ DWDM 40km transceivers are high performance, cost effective modules supporting data rate of 14.025Gbps and 40km transmission distance with SMF.The transceiver consists of three sections: a Cooled EML laser transmitter, a PIN photodiode integrated with a trans-impedance preamplifier (TIA) and MCU control unit. All modules satisfy class I laser safety requirements.