Patent ID: 6295308
Filing Date: 2001-09-25
Classification: H01S

Abstract:
An optical transmitter module comprising:a substrate having a first anti-reflection end and a second anti-reflection end;an external reflector coupled to the first anti-reflection end of the substrate for providing an external cavity for providing a round-trip path for light travel and the external reflector providing a first cavity end for a modified extended laser cavity which is extended from the external cavity;at least one gain element included within the modified extended laser cavity and the at least one gain element processed integral with the substrate and near the first anti-reflection end;an optical modulator for providing external modulation external to the modified extended laser cavity and the optical modulator processed integral with the substrate and near the second anti-reflection end; anda partial reflector processed integral with the substrate and coupling the at least one gain element with the optical modulator, the partial reflector providing a second cavity end for the modified extended laser cavity.