In an optical gain equalizer according to the present invention, a plurality of etalon filters 1 and one ore more fiber gratings 2 or dielectric multilayer filters 3 are arranged in line, and a beam of light externally applied is passed through the etalon filters 1 and the fiber gratings 2 or dielectric...http://www.google.es/patents/US6377390?utm_source=gb-gplus-sharePatente US6377390 - Optical gain equalizer, and optical amplifier and wavelength-division multiplex transmitter both comprising the optical gain equalizer
Optical gain equalizer, and optical amplifier and wavelength-division ...