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Using polarization control plate to suppress transverse stimulated Raman scattering in large-aperture KDP crystal

Published online by Cambridge University Press:  18 December 2018

Xinmin Fan Open the ORCID record for Xinmin Fan [Opens in a new window] ,
Sensen Li ,
Xiaodong Huang ,
Jianxin Zhang ,
Chunyan Wang ,
Hourong Li ,
Yongzhi Sun  and
Haizhu Sun
Xinmin Fan*
Affiliation:
School of Physics and Optoelectronic Engineering & Institute of New Electromagnetic Materials, Weifang University, Weifang 261061, China
Sensen Li
Affiliation:
Science and Technology on Electro-Optical Information Security Control Laboratory, Tianjin 300308, China
Xiaodong Huang
Affiliation:
School of Physics and Optoelectronic Engineering & Institute of New Electromagnetic Materials, Weifang University, Weifang 261061, China
Jianxin Zhang
Affiliation:
School of Physics and Optoelectronic Engineering & Institute of New Electromagnetic Materials, Weifang University, Weifang 261061, China
Chunyan Wang
Affiliation:
School of Physics and Optoelectronic Engineering & Institute of New Electromagnetic Materials, Weifang University, Weifang 261061, China
Hourong Li
Affiliation:
School of Physics and Optoelectronic Engineering & Institute of New Electromagnetic Materials, Weifang University, Weifang 261061, China
Yongzhi Sun
Affiliation:
School of Physics and Optoelectronic Engineering & Institute of New Electromagnetic Materials, Weifang University, Weifang 261061, China
Haizhu Sun
Affiliation:
School of Physics and Optoelectronic Engineering & Institute of New Electromagnetic Materials, Weifang University, Weifang 261061, China
*
Author for correspondence: Xinmin Fan, School of Physics and Optoelectronic Engineering & Institute of New Electromagnetic Materials, Weifang University, Weifang 261061, China. E-mail: xinminfan@163.com
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Abstract

Transverse stimulated Raman scattering (TSRS) is strongly generated in the third-harmonic-generation crystal potassium dihydrogen phosphate (KDP) and can even damage the KDP crystal in inertial confinement fusion drivers. In this work, a method to suppress TSRS is proposed in which the polarization control plate (PCP) is moved to a new position in the existing optical path. The proposed method can suppress TSRS significantly and doubles the laser threshold intensity in KDP crystal when the order of the PCP is 16. This result is attributed to the reduction of the gain length for the Stokes radiation. The proposed method may also be used to suppress other nonlinear effects, including transverse stimulated Brillouin scattering in large-aperture optical components.

Keywords

Polarization control platepotassium dihydrogen phosphate (KDP)transverse stimulated Raman scattering
Type
Research Article
Information
Laser and Particle Beams , Volume 36 , Issue 4 , December 2018 , pp. 454 - 457
Copyright
Copyright © Cambridge University Press 2018 

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