Supermode behavior of coupled two-stripe Al/sub x/Ga/sub 1-//sub x/As-GaAs quantum-well heterostructure lasers

Journal Article · Wed Jul 15 04:00:00 EDT 1987 · J. Appl. Phys.; (United States)

DOI:https://doi.org/10.1063/1.339808· OSTI ID:6487596

Jackson, G S; Holonyak, N Jr; Hall, D C; Epler, J E; Burnham, R D; Paoli, T L

Data are presented on the simplest form of multiple-stripe laser array, a gain-guided two-stripe configuration of wide spacing (--15 ..mu..m, weak or moderate coupling), showing the effects of the two forms of supermode oscillation on the laser's L-I characteristic, far-field emission pattern, and radiation spectrum. Measurements of the spatial dependence of the gain, at various currents, for a modified (antireflection-coated) two-stripe Al/sub x/Ga/sub 1-//sub x/As-GaAs quantum-well heterostucture laser diode provides a basis for explaining the onset of oscillations of both forms of supermodes (n = 1, symmetric or ''even,'' and n = 2, antisymmetric or ''odd''). These results agree with the significant band filling of the single quantum well and the supermode energy splitting of --15 meV in high-level laser operation. The data and results presented are obtained by operating antireflection-coated diodes in a tunable external grating cavity and by taking gain measurements on and between the stripes at the Fabry--Perot facets.

• Research Organization: Electrical Engineering Research Laboratory, Center for Compound Semiconductor Microelectronics, and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
• OSTI ID: 6487596
• Journal Information: J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 62:2; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
AMPLIFICATION
ARSENIC COMPOUNDS
ARSENIDES
COUPLING
ELECTROMAGNETIC RADIATION
GAIN
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
GRATINGS
LASER RADIATION
LASERS
OPERATION
OSCILLATION MODES
PNICTIDES
RADIATIONS
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS