Optical pulse addition device

摘要

SC light is generated from the input signal 2, of an OTDM signal light 1 with wavelength lambds1 and an input signal 2 with wavelength lambds2 using an optical fiber and the like, and the wavelength of the SC light is converted into wavelength lambds1 using a BPF with center wavelength lambds1 (a specific-timing optical pulse with wavelength lambds1 is extracted from the SC light). After the addition timing of the wavelength-converted light is adjusted by a delayer (tau) both this wavelength-converted light and signal light 1 are inputted to an optical add circuit and are added.