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Short cavity GaAs/AlGaAs multiquantum well lasers by dry etching

Journal Article · · Appl. Phys. Lett.; (United States)
DOI:https://doi.org/10.1063/1.97630· OSTI ID:5185734
A reactive ion beam etching method with Cl/sub 2/ plasma is applied to fabricate short cavity GaAs/AlGaAs multiquantum well lasers grown by molecular beam epitaxy. Threshold currents as low as 38 mA are achieved for the 20-..mu..m-long cavity lasers. The very short cavity lasers show single longitudinal mode operation under pulsed conditions. Cavity length dependence of the threshold current is also investigated for the dry-etched lasers with cavity lengths varying from 20 to 500 ..mu..m.
Research Organization:
Optoelectronics Joint Research Laboratory, 1333 Kamikodanaka, Nakahara-ku, Kawasaki 211, Japan
OSTI ID:
5185734
Journal Information:
Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 49:16; ISSN APPLA
Country of Publication:
United States
Language:
English