TITLE

λ∼3.36 μm room temperature InGaAs/AlAs(Sb) quantum cascade lasers with third order distributed feedback grating

AUTHOR(S)
Commin, J. P.; Kennedy, K.; Revin, D. G.; Zhang, S. Y.; Krysa, A. B.; Cockburn, J. W.
PUB. DATE
September 2010
SOURCE
Applied Physics Letters;9/13/2010, Vol. 97 Issue 11, p111113
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report on the development of strain compensated InGaAs/AlAs(Sb) quantum cascade lasers, incorporating a buried third order distributed feedback grating. Single mode operation with a side mode suppression ratio of ∼30 dB has been achieved in the wavelength range of 3.358–3.380 μm for temperatures between 270 and 360 K. The threefold increase in grating pitch size, compared with a first order grating, allows conventional photolithographic techniques to be used for single mode laser fabrication.
ACCESSION #
53768671

 

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