The Boeing Company

R Jennhwa Fu

Eric Y Chan

Chi-Shain Hong

Luis Figueroa

Pamela L Derry

A semiconductor laser having increased reliability and enhanced high temperature operation. The device is based upon GaAs/AlGaAs, and comprises a quantum well active layer that is strained by the inclusion of the indium. The rear facet of the device has a high reflectivity coating, and the front facet reflectivity and cavity length are adjusted based upon the required output power. For high output power at high temperature, long cavity lengths and low front facet reflectivities are used. For low current operation and low output power at high temperature, shorter cavities and higher front facet reflectivities are used. The lasers are capable of reliably operating at temperatures up to and in excess of 100.degree. C.

Growing community of inventors

Mendham, NJ, United States of America

R Jennhwa Fu