Fiberer Hybrid for EDFA is a combination of a wavelength division multiplexer, tap coupler and an isolator in a compact package. This product Hybrid for EDFA has an extremely low insertion loss, a very stable tap-coupling ratio, high isolation, and hight return loss. The Hybrid for EDFA is ideal for fiber optic amplifier applications. All Fiberer Hybrid for EDFA products are Telcordia qualification tested.