Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yasushi Sugaya0
Miki Takeda0
Susumu Kinoshita0
Terumi Chikama0
Date of Patent
August 23, 2011
0Patent Application Number
124100270
Date Filed
March 24, 2009
0Patent Primary Examiner
Patent abstract
A multi-wavelength light amplifier includes a first-stage light amplifier which has a first light amplifying optical fiber amplifying a light input, a second stage light amplifier which has a second light amplifying optical fiber amplifying a first light output from the first-stage light amplifier, and an optical system which maintains a second light output of the second-stage light amplifier at a constant power level. The first-stage and second-stage light amplifiers have different gain vs wavelength characteristics so that the multi-wavelength light amplifier has no wavelength-dependence of a gain thereof.
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