Patent ID: 6408014
Filing Date: 2002-06-18
Classification: H01S

Abstract:
A frequency stable optical device comprising:a semiconductor light source for generating an optical signal at a frequency and having a first and second end; a frequency discriminator for detecting said frequency and having a first and second end and being monolithically formed at one of said first and said second ends of said light source; a modulator for modulating said light source and being monolithically formed at one of said other one of said first and said second ends of said light source and one of said first and said second ends of said frequency discriminator; and a controller connected to said frequency discriminator and said light source for receiving a frequency indicating signal from said frequency discriminator indicative of said frequency of said optical signal and for generating a control signal for controlling said light source so that said controller maintains said frequency of said optical signal within a desired frequency range based upon said frequency indicating signal.