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基于二硫化钨可饱和吸收体双波长被动调Q Yb∶GdYSiO5激光器

Dual-wavelength Passively Q-switched Yb∶GdYSiO5 Laser Based on WS2 Saturable Absorber Mirror

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摘要

基于新型可饱和吸收体二硫化钨在Yb∶GdYSiO5晶体中实现了双波长调Q激光的输出.将二硫化钨纳米薄片溶液涂覆在具有高反射率的BK7玻璃基底上, 制成二硫化钨可饱和吸收镜用于启动调Q.采用光纤耦合输出的二极管激光器作为泵浦源, 其发射激光的中心波长约为976 nm.通过调节谐振腔以及选择合适的泵浦功率, 在波长为1 051 nm和1 091 nm附近同时实现了稳定调Q激光输出.调Q激光脉冲宽度为8.4 μs, 重复频率为2.9 kHz, 平均输出功率为125 mW.

Abstract

A dual-wavelength passively Q-switched Yb∶GdYSiO5 laser based on a WS2 saturable absorber mirror was proposed. The WS2 nanoplatelets solution was coated on a BK7 glass substrate with high-reflective-index thin polymer to be a WS2 saturable absorber mirror for starting Q-switching operation. By tuning the resonant cavity and selecting a suitable pumping power, the stable Q-switched laser pulses at 1051 nm and 1091 nm were simultaneously generated with a 976-nm fiber-coupled diode laser as pump source. The laser pulses had a pulse duration of 8.4 μs, a repetition rate of 2.9 kHz, and an average output power of 125 mW, respectively.

Newport宣传-MKS新实验室计划
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中图分类号:TN248.1;TN244

DOI:10.3788/gzxb20184710.1014002

基金项目:The National Natural Science Foundation of China ( Nos. 61475127, 61575163, 61775184,61805205), the Fundamental Research Funds for the Central Universities (No. XDJK2018C079), the China Postdoctoral Science Foundation (No. 2018M633303), and the Doctor Fund from Southwest University (No. SWU110645)

收稿日期:2018-05-25

修改稿日期:2018-07-13

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高子叶:西南大学 物理科学与技术学院, 重庆 400715西南大学 数学与统计学院, 重庆 400715
朱江峰:西安电子科技大学 物理与光电工程学院, 西安 710071
公爽:北京工业大学 应用数理学院, 北京 100124
田金荣:北京工业大学 应用数理学院, 北京 100124
吴正茂:西南大学 物理科学与技术学院, 重庆 400715西南大学 数学与统计学院, 重庆 400715

联系人作者:高子叶(zygao@swu.edu.cn)

备注:GAO Zi-ye (1985-), female, lecture, Ph. D. degree, mainly focuses on all-solid-state ultrafast lasers.

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引用该论文

GAO Zi-ye,ZHU Jiang-feng,GONG Shuang,TIAN Jin-rong,WU Zheng-mao. Dual-wavelength Passively Q-switched Yb∶GdYSiO5 Laser Based on WS2 Saturable Absorber Mirror[J]. ACTA PHOTONICA SINICA, 2018, 47(10): 1014002

高子叶,朱江峰,公爽,田金荣,吴正茂. 基于二硫化钨可饱和吸收体双波长被动调Q Yb∶GdYSiO5激光器[J]. 光子学报, 2018, 47(10): 1014002

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