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High power buried sampled grating distributed feedback quantum cascade lasers

✍ Scribed by Zhang, J. C.; Liu, F. Q.; Yao, D. Y.; Zhuo, N.; Wang, L. J.; Liu, J. Q.; Wang, Z. G.

Book ID
120195067
Publisher
American Institute of Physics
Year
2013
Tongue
English
Weight
992 KB
Volume
113
Category
Article
ISSN
0021-8979

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## Abstract We present high power mid‐infrared surface‐emitting single mode GaAs‐based quantum cascade lasers (QCLs). By using an air‐AlGaAs waveguide combined with second‐order distributed feedback processing, we obtained optical output, via the surface, above 3W. Surface‐normal dual‐lobe light em