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Proceedings Paper

Theory of intracavity nonlinear processes in quantum cascade lasers
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Paper Abstract

We overview coherent nonlinear optical phenomena that occur in active quantum-cascade structures which support both laser action and, at the same time, nonlinear self-conversion of laser light into coherent radiation at different frequencies. In other words, the laser field serves as an intracavity optical pump for the desired nonlinear optical process. In such systems, resonant absorption of the pump field is overcome by laser gain, and huge resonant nonlinearities of the intersubband transitions can be fully exploited. The proposed approach holds promise to extend the operating wavelength of QC lasers to the spectral regions where they become less efficient, constrained by material limitations, or operate only at cryogenic temperatures. It may also lead to the development of broadly tunable injection-pumped sources.

Paper Details

Date Published: 1 April 2005
PDF: 11 pages
Proc. SPIE 5738, Novel In-Plane Semiconductor Lasers IV, (1 April 2005); doi: 10.1117/12.597114
Show Author Affiliations
Alexey Belyanin, Texas A&M Univ. (United States)
Debin Liu, Texas A&M Univ. (United States)
Feng Xie, Texas A&M Univ. (United States)
Federico Capasso, Harvard Univ. (United States)
Claire Gmachl, Princeton Univ. (United States)

Published in SPIE Proceedings Vol. 5738:
Novel In-Plane Semiconductor Lasers IV
Carmen Mermelstein; David P. Bour, Editor(s)

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