EFFICIENT TWO-WAY OPTICAL FIBER AMPLIFIER FOR LINK REPEATER OF MISSILE GUIDANCE DATA

摘要

PURPOSE: To provide a bidirectional EDF optical amplifier which is capable of optimizing respective signal channels for efficient bidirectional optical signal relay. CONSTITUTION: First and second separate optical signal amplifying channels 52 and 62 of two signals respectively propagated in opposite directions are provided, and thus the optimization of the respective signal channels is made possible. The respective amplification channels are provided with first erbium- doped fiber amplifiers 54 and 64 and are further provided with pump laser sources 53 and 63 which operate by first and second wavelengths and pump WDM couplers 56 and 66 positioned at the end part of EDF, so as to couple optical signals from the pump laser sources with the signals transmitted through an EDF.