1.3 µm GaInAsP lasers integrated with butt-coupledwaveguide andhigh reflective semiconductor/air Bragg reflector (SABAR)

Abstract

The design and demonstration of a novel integrated laser with a butt-coupled waveguide and a semiconductor/air Bragg reflector (SABAR) are presented. The SABAR is loaded into the butt-coupled waveguide to reduce the diffraction loss. Experimentally obtained SABAR reflectivity is estimated to be > 90%. The butt-coupled interface and SABAR are successfully formed, resulting in low threshold GaInAsP integrated lasers.