Rotating off-centered lens in SBS phase conjugation mirror for high- repetition-rate operation

被引：28

作者：

Wang, Hongli ^{[1
,2
]}

Cha, Seongwoo ^{[2
]}

Kong, Hong Jin ^{[2
]}

Wang, Yulei ^{[1
,3
]}

Lu, Zhiwei ^{[1
,3
]}

机构：

[1] Harbin Inst Technol, Natl Key Lab Sci & Technol Tunable Laser, Harbin 150001, Heilongjiang, Peoples R China

[2] Korea Adv Inst Sci & Technol, Dept Phys, 373-1 Guseongdong, Daejeon 305701, South Korea

[3] Hebei Univ Technol, Sch Elect & Informat Engn, Tianjin 300401, Peoples R China

来源：

OPTICS EXPRESS | 2019年 / 27卷 / 07期

关键词：

STIMULATED BRILLOUIN-SCATTERING; PULSE-COMPRESSION; NDYAG LASER; ENERGY;

D O I：

10.1364/OE.27.009895

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A new method using a rotating off-centered lens is proposed to reduce the heat accumulation at the focal spot of a stimulated Brillouin scattering phase conjugation mirror at high-repetition-rate operation. Theoretical simulation of the beam intensity pattern at the focal point indicates there is less coma-aberration using a rotating off-centered focusing lens than with a rotating wedge and a conventional lens. The resultant SBS output parameters using this new method are substantially improved comparable to those of a non-rotating conventional method for high-repetition-rate operation while the former operates quite well for higher power and the latter operates only for lower input power. High reflected energy and a good beam pattern are demonstrated using the proposed method in the present experimental conditions of 50 mJ at 1 kHz. (C) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：9895 / 9905

页数：11