Operating characteristics of single-quantum-well AlGaAs/GaAs high-power lasers

Journal Article · Fri Jul 01 04:00:00 EDT 1988 · IEEE J. Quant. Electron.; (United States)

DOI:https://doi.org/10.1109/3.962· OSTI ID:6841863

Wagner, D K; Waters, R G; Tihanyi, P L; Hill, D S; Roza, Jr, A J; Vollmer, H J; Leopold, M M

The operating characteristics of six types of graded-index separate confinement heterostructure single-quantum-well wide-stripe lasers grown by metalorganic chemical chemical vapor deposition are reported. The lasers exhibit intrinsic mode losses as low as 3 cm/sup -1/ and internal quantum efficiencies near unity. Measured differential gain coefficients range from 3.7 to 6.5 cm/A, and extrapolated transparency current densities range from 54 to 145 A/cm/sup 2/. These wide-stripe lasers are typically multilongitudinal mode and exhibit narrowing of the gain envelope and lateral far-field pattern as the cavity length increases. The high value of T/sub 0/ (>200 K) at long cavity lengths in conjunction with the low current density permits junction-side-up operation to CW optical powers of 0.5 - 0.7 W/facet, at which level catastrophic facet damage occurs on the uncoated devices. A maximum power conversion efficiency of 57 percent was measured on the laser structure exhibiting the lowest threshold current.

• Research Organization: Applied Solar Energy Corp., City of Industry, CA (US)
• OSTI ID: 6841863
• Journal Information: IEEE J. Quant. Electron.; (United States), Journal Name: IEEE J. Quant. Electron.; (United States) Vol. 24:7; ISSN IEJQA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
657002 -- Theoretical & Mathematical Physics-- Classical & Quantum Mechanics
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
CHEMICAL COATING
CHEMICAL VAPOR DEPOSITION
CRYSTAL GROWTH
DEPOSITION
EFFICIENCY
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
LASER CAVITIES
LASERS
MECHANICS
PERFORMANCE
PNICTIDES
QUANTUM EFFICIENCY
QUANTUM MECHANICS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SURFACE COATING