Parasitic oscillation in mid-infrared optical parametric generator based on PPMgLN

Parasitic oscillation of optical parametric generator (OPG) seriously affects transform efficiency, stability and beam quality of mid-infrared laser. And because of the cross-section of the light spot and nonlinear effect, it is difficult to eliminate parasitic oscillation. This paper focuses on the...

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Bibliographic Details
Published in:Optik (Stuttgart) 2013-08, Vol.124 (16), p.2511-2513
Main Authors: Lin, Hongyi, Meng, Xianguo, Xu, Yingchao, Huang, Xiaohua, Tan, Huiming
Format: Article
Language:English
Subjects:
Beams (radiation)
Conversion
Cross sections
Generators
Lasers
Light spots
Mid-infrared laser
Optical data processing
Optical parametric generator
Oscillations
Parasitic oscillation
PPMgLN crystal
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Summary:Parasitic oscillation of optical parametric generator (OPG) seriously affects transform efficiency, stability and beam quality of mid-infrared laser. And because of the cross-section of the light spot and nonlinear effect, it is difficult to eliminate parasitic oscillation. This paper focuses on the analysis of the causes of parasitic oscillation and its influence on the output power. Optical parametric oscillator (OPO) and optical parametric amplifier (OPA) in the parasitic oscillation are inconsistent. Through the study on parasitic oscillation in the optical parametric process, it can effectively improve conversion efficiency, and improve device performance.
ISSN:0030-4026
1618-1336
DOI:10.1016/j.ijleo.2012.08.027