ELEMENT FOR PROCESSING OPTICAL SIGNAL USING SATURATION ABSORBER AND OPTICAL AMPLIFIER

摘要

PURPOSE: An element for processing an optical signal using a saturation absorber and an optical amplifier is provided to connect a saturation absorber and an optical amplifier in serial, and to make transparent output light strength outputted from the saturation absorber bigger than saturation input light strength of the optical amplifier, thereby removing noise and improving output light strength. CONSTITUTION: A passing power of a saturation absorber(100) is more than an absorption power if an incident light more than a transparent input light strength is injected, and the absorption power of the saturation absorber(100) is more than the passing power if an incident light less than the transparent input light strength is injected. An optical amplifier(110) is connected with the saturation absorber(100) in serial, and shows a saturation phenomenon at more than saturation input light strength. A transparent output light strength outputted when the transparent input light strength is inputted to the saturation absorber(100) is more than the saturation input light strength.