Patent ID: 6580739
Filing Date: 2003-06-17
Classification: B82Y,H01S,H04B

Abstract:
A monolithically-integrated wavelength converter assembly, comprising:a semiconductor substrate; an epitaxial structure formed on the substrate with areas of different optical properties; a widely-runable multisection laser formed in the epitaxial structure and having a gain medium; a photodetector formed in the epitaxial structure and having an optically active absorber region that absorbs an input optical signal of a first wavelength and generates a first electrical signal in response thereto; and a conditioning circuit formed on the substrate, the conditioning circuit coupled to the gain medium of the laser and the optically active absorber region of the photodetector, the conditioning circuit receiving the first electrical signal from the photodetector and generating a second electrical signal to the laser in response thereto, wherein the second electrical signal is provided to the laser to modulate its output optical signal a second wavelength.