Stimulated emission in quantum well laser diodes

Journal Article · Mon Jul 03 04:00:00 EDT 1989 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.101745· OSTI ID:6085127

Blood, P

We observe that stimulated emission from inhomogeneously pumped quantum well laser diodes is shifted down in energy compared with the subband transition energy. Measured spontaneous emission spectra show that this stimulated emission is due to band-to-band transitions shifted by renormalization at high injected carrier densities, and we suggest that this same mechanism explains reported observations of stimulated emission from inhomogeneously photopumped structures which previously have been interpreted as evidence for longitudinal optic (LO) phonon participation. We show that LO phonon participation cannot account for the photon energy of stimulated emission from conventional homogeneously pumped quantum well laser diodes.

• Research Organization: Philips Research Laboratories, Redhill RH1 5HA, United Kingdom(GB)
• OSTI ID: 6085127
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 55:1; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
ALUMINIUM ARSENIDES
ALUMINIUM COMPOUNDS
ARSENIC COMPOUNDS
ARSENIDES
DATA
EMISSION
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
EXPERIMENTAL DATA
GALLIUM ARSENIDES
GALLIUM COMPOUNDS
INFORMATION
LASERS
NUMERICAL DATA
OPTICAL PUMPING
PHONONS
PNICTIDES
PUMPING
QUASI PARTICLES
SEMICONDUCTOR DEVICES
SEMICONDUCTOR LASERS
SPECTRA
STIMULATED EMISSION