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Proceedings Paper

Intracavity amplitude modulation of quantum-cascade lasers using intersubband absorption in the active region under reverse bias
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Paper Abstract

We have analyzed light absorption in a quantum cascade laser structure under forward and reverse bias. Strong absorption modulation at the laser frequency is predicted and observed experimentally for the voltage variation within the high differential resistance voltage range. We propose to use this mechanism for monolithically integrated intracavity modulation of quantum cascade lasers, promising suppressed thermal chirp and fast modulation capability. In addition, the described method allows for extraction of the intersubband absorption from the total waveguide losses.

Paper Details

Date Published: 29 January 2008
PDF: 8 pages
Proc. SPIE 6909, Novel In-Plane Semiconductor Lasers VII, 690910 (29 January 2008); doi: 10.1117/12.767838
Show Author Affiliations
Arkadiy Lyakh, Pranalytica, Inc. (United States)
Richard Maulini, Pranalytica, Inc. (United States)
Alexei Tsekoun, Pranalytica, Inc. (United States)
Rowel Go, Pranalytica, Inc. (United States)
C. Kumar N. Patel, Pranalytica, Inc. (United States)
Univ. of California, Los Angles (United States)

Published in SPIE Proceedings Vol. 6909:
Novel In-Plane Semiconductor Lasers VII
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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