Patent ID: 7962039

Claim:
A multiple wavelength light source comprising: an optical comb generator for generating a group of lights shifted from a plurality of lights inputted to the optical comb generator by predetermined frequencies; and an optical adjusting portion adjusting the plurality of lights having different wavelengths to be inputted to the optical comb generator; wherein the optical comb generator is composed of an optical fiber loop which comprises: an optical SSB, Single Side Band, modulator; an optical amplifier; an optical input port for inputting lights from the optical adjusting portion, and an optical output port for outputting lights; wherein the optical adjusting portion comprises: a plurality of light sources being capable of generating the plurality of lights; and a phase modulator or an intensity modulator to perform phase modulation or intensity modulation for each of the plurality of lights, the each of the plurality of lights being generated by the plurality of light sources, the modulated lights being inputted to the optical comb generator.