DocumentCode :
1521812
Title :
Room Temperature Continuous-Wave Operation of Top Metal Grating Distributed Feedback Quantum Cascade Laser at 
Author :
Zhang, Jinchuan ; Wang, Lijun ; Tan, Song ; Chen, Jianyan ; Zhai, Shenqiang ; Liu, Junqi ; Liu, Fengqi ; Wang, Zhanguo
Author_Institution :
Key Lab. of Semicond. Mater. Sci., Inst. of Semicond., Beijing, China
Volume :
24
Issue :
13
fYear :
2012
fDate :
7/1/2012 12:00:00 AM
Firstpage :
1100
Lastpage :
1102
Abstract :
We demonstrate a carefully designed top metal grating distributed feedback quantum cascade laser emitting at λ ~ 7.6 μm. Room temperature continuous-wave singlemode operation with 30-dB sidemode suppression ratio and 40-mW output power is achieved. Such a simple and high-efficiency approach is presented as an alternative to the currently complicated buried grating technology in the long-wave infrared range.
Keywords :
diffraction gratings; distributed feedback lasers; infrared spectra; quantum cascade lasers; continuous wave operation; grating technology; long wave infrared range; power 40 mW; sidemode suppression ratio; temperature 293 K to 298 K; top metal grating distributed feedback quantum cascade laser; wavelength 7.6 mum; Couplings; Distributed feedback devices; Gratings; Metals; Quantum cascade lasers; Silicon; Temperature measurement; Distributed feedback devices; quantum cascade lasers; semiconductor lasers;
fLanguage :
English
Journal_Title :
Photonics Technology Letters, IEEE
Publisher :
ieee
ISSN :
1041-1135
Type :
jour
DOI :
10.1109/LPT.2012.2195652
Filename :
6203641
Link To Document :
