Patent ID: 6185233
Filing Date: 2001-02-06
Classification: H01S

Abstract:
An output power controlled wavelength stabilizing system operable to minimize the wavelength variation of a laser signal light using a wavelength limiter, said wavelength limiter comprising:a first clamping circuit, said first clamping circuit operable to:receive an offset voltage;compare said offset voltage to a first predetermined reference voltage of a first comparator;output the difference between said offset voltage and said first predetermined reference voltage yielding a first reference voltage; andclamp if said offset voltage rises higher than said first predetermined reference voltage; anda second clamping circuit, said second clamping circuit operable to:receive said offset voltage;compare said offset voltage to a second predetermined reference voltage of a second comparator;output the difference between said offset voltage and said second predetermined reference voltage yielding said first reference voltage; andclamp if said offset voltage drops below said second predetermined reference voltage.