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Browse Journals & Magazines > Applied Physics Letters ...> Volume:97 Issue:13 Help

Broad area photonic crystal distributed feedback quantum cascade lasers emitting 34 W at λ∼4.36 μm

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5 Author(s)
Gokden, B. ; Department of Electrical Engineering and Computer Science, Center for Quantum Devices, Northwestern University, Evanston, Illinois 60208, USA ; Bai, Y. ; Bandyopadhyay, N. ; Slivken, S.
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We demonstrate room temperature, high power, single mode, and diffraction limited operation of a two dimensional photonic crystal distributed feedback quantum cascade laser emitting at 4.36 μm. Total peak power up to 34 W is observed from a 3 mm long laser with 400 μm cavity width at room temperature. Far-field profiles have M2 figure of merit as low as 2.5. This device represents a significant step toward realization of spatially and spectrally pure broad area high power quantum cascade lasers.

Published in:
Applied Physics Letters  (Volume:97 ,  Issue: 13 )

Date of Publication: Sep 2010

Page(s):
131112 - 131112-3
ISSN :
0003-6951
Digital Object Identifier :
10.1063/1.3496043
Product Type:
Journals & Magazines
Date of Current Version :
07 October 2010
Issue Date :
Sep 2010

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