Patent ID: 8548022
Filing Date: 2013-10-01
Classification: B82Y,H01S

Abstract:
1. A single frequency complex-coupled distributed feedback semiconductor laser device having a single optical lasing mode along an optical axis, comprising: a substrate having a first metal conductive layer on an exterior side and a first cladding region on an interior side; a first barrier region adjacent the first cladding region; an active region adjacent the first barrier region comprising at least one quantum well; a second barrier region adjacent the active region; a second cladding region adjacent the second barrier region; a graded refractive index region adjacent the second cladding region; a complex-coupled grating adjacent the graded refractive index region further comprising a set of periodically placed metal stacks; a third cladding region adjacent the complex-coupled grating and the graded refractive index region comprising a non-epitaxially grown transparent and conductive material; a second metal conductive layer adjacent the third cladding region; a means for providing lateral carrier confinement; and, a means for providing lateral optical confinement and vertical optical confinement for the single optical lasing mode.