scholarly journals Passive coherent beam combining of quantum-cascade lasers with a Dammann grating

2012 ◽  
Author(s):  
Guillaume Bloom ◽  
Christian Larat ◽  
Eric Lallier ◽  
Gaëlle Lehoucq ◽  
Shailendra Bansropun ◽  
...  
2011 ◽  
Vol 36 (19) ◽  
pp. 3810 ◽  
Author(s):  
G. Bloom ◽  
C. Larat ◽  
E. Lallier ◽  
G. Lehoucq ◽  
S. Bansropun ◽  
...  

Author(s):  
Brian G. Saar ◽  
Kevin J. Creedon ◽  
Leo J. Missaggia ◽  
Christine A. Wang ◽  
Michael K. Connors ◽  
...  

2021 ◽  
Vol 53 (10) ◽  
Author(s):  
Zenghui Gu ◽  
Jinchuan Zhang ◽  
Shenqiang Zhai ◽  
Ning Zhuo ◽  
Shuman Liu ◽  
...  

2009 ◽  
Author(s):  
S. Hugger ◽  
F. Fuchs ◽  
Rolf Aidam ◽  
W. Bronner ◽  
R. Loesch ◽  
...  

2021 ◽  
Author(s):  
Zenghui Gu ◽  
Jinchuan Zhang ◽  
Shenqiang Zhai ◽  
Ning Zhuo ◽  
Shuman Liu ◽  
...  

Abstract In this paper, we report a spectral beam combining technique based on discrete quantum cascade lasers at l~ 4.8 mm. Good beam qualities of M 2 < 1.3 for both fast and slow axes are obtained. The entire spectrum span is approximately 29.1 cm -1 , which is consistent with the theoretical results of grating equation. Maximum beam combining efficiency of 58.9% with output power exceeding 1 W is demonstrated under continuous wave operation at room temperature. The limit of beam combining efficiency is theoretically investigated. The independent temperature control for the discrete lasers circumvented the issue of thermal crosstalk between the lasers on an array and pave the way to high power and high efficiency laser spectral beam combining.


2021 ◽  
Author(s):  
jun zhang ◽  
Hangyu Peng ◽  
Jingbo Wang ◽  
Jiye Zhang ◽  
Qin li ◽  
...  

2017 ◽  
Vol 85 ◽  
pp. 52-55 ◽  
Author(s):  
Yue Zhao ◽  
Jin-Chuan Zhang ◽  
Yu-Hong Zhou ◽  
Zhi-Wei Jia ◽  
Ning Zhuo ◽  
...  

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