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Proceedings Paper

Designation of a polarization-converting system and its enhancement of double-frequency efficiency
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Paper Abstract

A polarization-converting system is designed by using axicons and wave plate transforming naturally polarized laser to linearly polarized laser at real time to resolve difficulties of generating high-power linearly polarized laser. The energy conversion efficiency reaches 96.9% with an enhancement of extinction ratio from 29.7% to 98%. The system also keeps excellent far field divergence. In the one-way SHG experiment the double frequency efficiency reached 4.32% using the generated linearly polarized laser, much higher than that of the naturally polarized laser but lower than that of the linearly polarized laser from PBS. And the phenomenon of the SHG experiment satisfies the principle of phase matching. The experiment proves that this polarization-converting system will not affect laser structure which controls easily and needs no feedback and controlling system with stable and reliable properties at the same time. It can absolutely be applied to the polarization-conversion of high power laser and enhance the SHG efficiency and the energy efficiency.

Paper Details

Date Published: 5 August 2015
PDF: 9 pages
Proc. SPIE 9621, 2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications, 96210V (5 August 2015); doi: 10.1117/12.2193143
Show Author Affiliations
Peng Wang, National Univ. of Defense Technology (China)
Xiao Li, National Univ. of Defense Technology (China)
YaPing Shang, National Univ. of Defense Technology (China)
XiaoJun Xu, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 9621:
2015 International Conference on Optical Instruments and Technology: Advanced Lasers and Applications
Jianqiang Zhu; Chunqing Gao, Editor(s)

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