Journal
APPLIED PHYSICS LETTERS
Volume 84, Issue 18, Pages 3699-3701Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1738184
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Continuous-wave distributed feedback interband cascade lasers operating near 3.3 mum are reported. Single longitudinal mode emission is achieved with side mode suppression ratio greater than 30 dB at temperatures up to 175 K. A clear Bragg stop band in the laser emission spectrum indicates a dominant index coupling with the first-order grating. Detailed characteristics of these lasers are discussed. (C) 2004 American Institute of Physics.
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