Disclosed is a multi-lambda source for outputting an optical signal having
a plurality of channels, the multi-lambda source comprising an optical fiber amplifier,
having a back and front end, for amplifying an optical signal received from the
back end and outputting ASE light to the back end, a reflector coupled to the back
end of the optical fiber amplifier for reflecting a received optical signal, and
a comb filter arranged between the optical fiber amplifier and the reflector and
having a pass band of wavelengths for filtering the ASE light and generating the
optical signal of the channels according to a transmission spectrum of the filtered
ASE light.
