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Proceedings Paper

Electrically pumped photonic crystal distributed feedback quantum cascade lasers
Author(s): Y. Bai; P. Sung; S. R. Darvish; W. Zhang; A. Evans; S. Slivken; M. Razeghi
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Paper Abstract

We demonstrate electrically pumped, room temperature, single mode operation of photonic crystal distributed feedback (PCDFB) quantum cascade lasers emitting at λ ~ 4.75 μm. Ridge waveguides of 50 μm and 100 μm width were fabricated with both PCDFB and Fabry-Perot feedback mechanisms. The Fabry-Perot device has a broad emitting spectrum and a broad far-field character. The PCDFB devices have primarily a single spectral mode and a diffraction limited far field characteristic with a full angular width at half-maximum of 4.8 degrees and 2.4 degrees for the 50 μm and 100 μm ridge widths, respectively.

Paper Details

Date Published: 12 February 2008
PDF: 8 pages
Proc. SPIE 6900, Quantum Sensing and Nanophotonic Devices V, 69000A (12 February 2008); doi: 10.1117/12.776272
Show Author Affiliations
Y. Bai, Northwestern Univ. (United States)
P. Sung, Northwestern Univ. (United States)
S. R. Darvish, Northwestern Univ. (United States)
W. Zhang, Northwestern Univ. (United States)
A. Evans, Northwestern Univ. (United States)
S. Slivken, Northwestern Univ. (United States)
M. Razeghi, Northwestern Univ. (United States)

Published in SPIE Proceedings Vol. 6900:
Quantum Sensing and Nanophotonic Devices V
Rengarajan Sudharsanan; Christopher Jelen, Editor(s)

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