Optical amplifying apparatus capable of detecting at least one of optical individual signals

摘要

In an optical amplifying for amplifying an input wavelength multiplexed signal into an amplified output wavelength multiplexed signal, each of the input wavelength multiplexed signal and the amplified output wavelength multiplexed signal containing a plurality of optical component signals which have wavelengths different from one another, and each of which has an amplitude level, the optical amplifying apparatus comprises an optical amplifier for amplifying the input optical wavelength multiplexed signal into the amplified output wavelength multiplexed signal and an optical detecting circuit for individually detecting the amplitude level of at least one of the optical component signals.