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Browse Journals & Magazines > Applied Physics Letters ...> Volume:89 Issue:14 Help

Room temperature, continuous wave operation of distributed feedback quantum cascade lasers with widely spaced operation frequencies

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7 Author(s)
Wittmann, Andreas ; Institute of Physics, University of Neuchâtel, CH-2000 Neuchâtel, Switzerland ; Giovannini, Marcella ; Faist, Jerome ; Hvozdara, L.
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Your organization might have access to this article on the publisher's site. To check, click on this link:http://dx.doi.org/+10.1063/1.2358939 

Lasing properties of room temperature, continuous wave operated distributed feedback (DFB) quantum cascade lasers are reported. A bound-to-continuum active region was used to generate a broad gain spectrum. As a result, first-order DFB lasers employing different periods allowed us to achieve single mode continuous wave emission at several wavelengths ranging from 7.7 to 8.3 μm at a temperature of +30 °C. The frequency span corresponds to 8% of the center frequency.

Published in:
Applied Physics Letters  (Volume:89 ,  Issue: 14 )

Date of Publication: Oct 2006

Page(s):
141116 - 141116-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.2358939
Product Type:
Journals & Magazines
Date of Current Version :
18 June 2009
Issue Date :
Oct 2006

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