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Distributed feedback terahertz quantum cascade lasers with complex-coupled metallic gratings

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6 Author(s)
Chen, J.Y. ; Key Lab. of Semicond. Mater. Sci., Chinese Acad. of Sci., Beijing, China ; Liu, J.Q. ; Liu, F.Q. ; Li, L.
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The singlemode operation of a distributed feedback terahertz quantum cascade laser with complex-coupled metallic relief gratings emitting at 3.09 THz ( 97.07 m) is reported. The side-mode suppression ratio is about 20 dB at all operating temperatures. The highest working temperature of up to 88 K is obtained, with the optical power of 10 mW at 10 K and 1 mW at 88 K.

Published in:

Electronics Letters  (Volume:46 ,  Issue: 19 )

Date of Publication:

Sept. 16 2010

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