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Proceedings Paper

Review Of State-Of-The-Art Lead-Salt Diode Laser Development
Author(s): Wayne Lo
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Paper Abstract

Long wavelength (λ > 22 pl) lead-salt diode lasers are useful for spectroscopy studies and also for long distance fiber-optical communications. Double heterojunction diode lasers have now been fabricated using a new material system, Pbl-x EuxSeyTel-y. These structures were grown lattice-matched to (100) oriented PbTe substrates by molecular beam epitaxy. Laser operation up to 190 K pulsed, 147 K CW, has been attained with up to 1 mW single mode output power. The growth of single quantum well lead-chalcogenide diode lasers will be described. The threshold current of these quantum well lasers increases relatively slowly with temperature, yielding CW operation up to 174 K (at 4.41 μm wavelength), and pulsed operation up to 241 K (at 4.01 μm). To achieve single Nide operation, a simple technique has been developed for the fabrication of lead-salt C (cleaved-coupled-cavity) diode lasers. The improvement in spectral purity and the reduction in threshold current of these coupled cavity lasers will be discussed.

Paper Details

Date Published: 16 October 1984
PDF: 9 pages
Proc. SPIE 0484, Infrared Optical Materials and Fibers III, (16 October 1984); doi: 10.1117/12.943156
Show Author Affiliations
Wayne Lo, General Motors Research Laboratories (United States)

Published in SPIE Proceedings Vol. 0484:
Infrared Optical Materials and Fibers III
Paul Klocek, Editor(s)

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