Distributed feedback Pb/sub 1-x/Sn/sub x/Te double-heterostructure lasers

Journal Article · Wed Sep 01 00:00:00 EDT 1976 · Appl. Phys. Lett.; (United States)

DOI:https://doi.org/10.1063/1.89057· OSTI ID:7267211

Walpole, J N; Calawa, A R; Chinn, S R; Groves, S H; Harman, T C

Distributed feedback laser operation is demonstrated in stripe-geometry Pb/sub 1-x/Sn/sub x/Te double heterostructures grown by molecular-beam epitaxy. The grating of 1.1 ..mu..m periodicity operates in first order near 745 cm/sup -1/ (13.4 ..mu..m) under pulsed conditions in a limited range of heat-sink temperatuers (approx.30--65 K) where both gain and the Bragg reflection condition can be achieved. The guide index n/subg/approx. =6.1 is consistent with theoretical estimates. In Pb/sub 1-x/Sn/sub x/Te DH devices, by corrugating the surface after all epitaxy is completed, a large coupling coefficient for Bragg reflection can be achieved because the last confining layer can be made very thin and the grating aspect ratio large. (AIP)

• Research Organization: Lincoln Laboratory, Massachusetts Institute of Technology, Lexington, Massachusetts 02173
• OSTI ID: 7267211
• Journal Information: Appl. Phys. Lett.; (United States), Journal Name: Appl. Phys. Lett.; (United States) Vol. 29:5; ISSN APPLA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420300* -- Engineering-- Lasers-- (-1989)
BRAGG REFLECTION
EMISSION SPECTRA
EPITAXY
FABRICATION
FEEDBACK
FREQUENCY SELECTION
JUNCTION DIODES
LASERS
OPERATION
OPTICAL MODES
OSCILLATION MODES
REFLECTION
SEMICONDUCTOR DEVICES
SEMICONDUCTOR DIODES
SEMICONDUCTOR LASERS
SPECTRA