Title :
Bimetallic heatsinks for temperature compensation of diode lasers: prospects for microfabrication
Author :
Cohen, Daniel A. ; Coldren, Larry A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA, USA
Abstract :
We demonstrate that temperature-dependent strain may be used to stabilize the wavelength, threshold current, and differential efficiency, of a 1.55 μm multiquantum well diode laser mounted on a bimetallic heatsink. We have obtained nearly complete stabilization of the modal wavelength, and an equivalent threshold current characteristic temperature of 133 K, over the temperature range of 20-70°C. We describe the principles of temperature compensation using thermal stress, review our results, and discuss the problems that remain to be solved
Keywords :
compensation; deformation; heat sinks; laser stability; laser transitions; quantum well lasers; semiconductor device packaging; thermal stresses; 1.55 micron; 20 to 70 C; MQW LD; bimetallic heatsinks; differential efficiency; diode lasers; microfabrication; multiquantum well LD; stabilization; temperature compensation; temperature-dependent strain; thermal stress; threshold current; wavelength; Diode lasers; Distributed feedback devices; Heat sinks; Laser feedback; Laser stability; Quantum well lasers; Temperature distribution; Temperature sensors; Threshold current; Wavelength division multiplexing;
Conference_Titel :
Electronic Components and Technology Conference, 1997. Proceedings., 47th
Conference_Location :
San Jose, CA
Print_ISBN :
0-7803-3857-X
DOI :
10.1109/ECTC.1997.606257
