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Proceedings Paper

Quantum well mid-infrared lasers based on above-barrier transitions
Author(s): Lawrence C. West; Charles W. Roberts; Jason P. Dunkel; Thomas K. Gaylord; Gregory N. Henderson; Emmanuel Anemogiannis; Elias Nikolaos Glytsis; Moses T. Asom
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Paper Abstract

A possible laser device is designed with the use of classically free quasibound electron states. An asymmetric semiconductor electron wave Fabry-Perot interference filter is designed with an upper electron state having much stronger confinement than the lower electron state. This structure also allows for direct current pumping of the upper state and rapid depletion of the lower state under the presence of a field. Spectroscopy experiments demonstrate the existence of the upper quasibound state in a test structure. This laser filter structure, designed for infrared gain with current pumping, is combined with a special injector filter for room temperature narrow energy current injection into the upper lasing state. A stack of 54 periods of this electrically pumped structure is placed within a waveguide geometry. A laser device is fabricated by etching mesa structures from 50 to 100 micrometers wide. End cleaved facets serve as reflectors for mesas from 2 to 5 mm long. Tests are performed on these devices to determine their electrical properties and suitability for lasing.

Paper Details

Date Published: 2 June 1994
PDF: 12 pages
Proc. SPIE 2145, Nonlinear Optics for High-Speed Electronics and Optical Frequency Conversion, (2 June 1994); doi: 10.1117/12.177137
Show Author Affiliations
Lawrence C. West, AT&T Bell Labs. (United States)
Charles W. Roberts, AT&T Bell Labs. (United States)
Jason P. Dunkel, AT&T Bell Labs. (United States)
Thomas K. Gaylord, Georgia Institute of Technology (United States)
Gregory N. Henderson, Georgia Institute of Technology (United States)
Emmanuel Anemogiannis, Georgia Institute of Technology (United States)
Elias Nikolaos Glytsis, Georgia Institute of Technology (United States)
Moses T. Asom, AT&T Bell Labs. (United States)

Published in SPIE Proceedings Vol. 2145:
Nonlinear Optics for High-Speed Electronics and Optical Frequency Conversion
Nasser Peyghambarian; Robert C. Eckardt; Nasser Peyghambarian; Henry Everitt; Dennis D. Lowenthal; Henry Everitt; Robert C. Eckardt; Dennis D. Lowenthal, Editor(s)

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