L-band single channel EDFA is a cost-effective EDFA (Erbium Doped Fiber Amplifier) Gain Block module in the L band (1568 to 1603 nm). This L-band EDFA can be configured for booster, pre-amplifier or line amplifier. EDFA gain block is also available with built-in control electronics. Rack mount/table top packages are also available on this product. These products are CDRH certified for laser safety (IEC 60825-1 & IEC 60825-2) and comply with Telcordia GR1312 requirements. L-band EDFA is a stand-alone gain block module that requires +5VDC bias (package G) and can be ordered with or without an integral heat sink.