Accelight’s 10G SFP+ BIDI 10km/40km series single mode transceiver is small form factor pluggable module for duplex optical data communications such as 10GBASE-LR/LW defined by IEEE 802.3ae. It is with the SFP+ 20-pin connector to allow hot plug capability Accelight’s 10G SFP+ BIDI 10km/40km module is designed for single mode fiber and operates at a nominal wavelength of 1270nm; 10G SFP+ BIDI 10km /40km module is designed for single mode fiber and operates at a nominal wavelength of 1330nm. The transmitter section uses a multiple quantum well DFB, which is class 1 laser compliant according to International Safety Standard IEC-60825. The receiver section uses an integrated InGaAs detector preamplifier (IDP) mounted in an optical header and a limiting post-amplifier IC.