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摘要

本文对1342 nm波长的电光腔倒空调 Q的Nd:YVO ₄激光器进行理论与实验研究. 理论计算了电光开关下降沿时间对腔倒空激光器输出脉宽的影响. 在实验中, 采用880 nm准连续激光二极管同带泵浦Nd:YVO ₄激光器, 在1 kHz重复频率下, 通过电光腔倒空方式, 得到最大平均功率210 mW (单脉冲能量0.21 mJ)、脉冲宽度2.8 ns的1342 nm激光输出, 光束质量因子 M ²优于1.2. 通过周期极化铌酸锂晶体(periodically poled lithium niobate, PPLN) 进行腔外倍频, 获得脉冲宽度1.8 ns的671 nm波长可见激光. 这是目前1.3 μm波长主动调 Q的Nd固体激光器产生的最窄脉冲宽度.

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Abstract

1.3-μm Nd laser has significant practical applications in various fields, such as fiber communication, medical treatment, frequency conversion, and scientific research. Many applications of a 1.3-μm laser, particularly frequency conversion, benefit greatly from a short pulse width with high peak power. In the paper, an electro-optical cavity dumping Nd:YVO ₄laser at 1342 nm wavelength is studied theoretically and experimentally. The pulse width for an electro-optical cavity dumping laser is determined by the optical length of the cavity. A narrower pulse width is obtained by reducing the length of the cavity and the round trip time of the laser in the cavity. However, when the round trip time in the cavity approaches to the falling edge time of the electro-optical switch, shortening the length of the cavity will not obtain a narrower pulse width, and the falling edge time of the electro-optical switch will influence the laser pulse width. The temporal characteristics of the laser pulse are simulated when the falling edge time of the electro-optical switch is close to the round trip time in the cavity. The influence of the falling edge time of the electro-optical switch on the laser pulse duration is analyzed theoretically. The modified rate equation is used to study the relationship between the falling edge time and the laser pulse width. We demonstrate an electro-optical cavity dumping Nd:YVO ₄laser. The atom percent of 0.3% Nd:YVO ₄placed in a short Plano-concave cavity is in-band pumped by an 880 nm quasi-continuous-wave diode. A fiber-coupled diode laser module ( NA= 0.22) with a power of 30 W is used. An LiNbO ₃electro-optical switch is employed for the cavity-dumping. The 1342-nm cavity-dumping laser operates at a repetition rate of 1 kHz, single-pulse energy of 0.21 mJ, and pulse width of 2.8 ns. Near-diffraction-limited beam quality with an $ M^2 $ value of < l.2 is achieved. The setup uses MgO:PPLN crystal to generate efficient second harmonic at 671 nm, with a pulse width of 1.8 ns. To the best of our knowledge, this is the shortest pulse duration ever obtained from 1.3 μm actively Q-switched Nd-doped laser.

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通信作者:葛文琦,gewq@aircas.ac.cn

基金项目:国家自然科学基金(批准号: 62075221, 61835014) 和国家重点研发计划(批准号: 2018YFB0504500)资助的课题

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Corresponding author:Ge Wen-Qi,gewq@aircas.ac.cn

Funds:Project supported by the National Natural Science Foundation of China (Grant Nos. 62075221, 61835014) and the National Key R&D Program of China (Grant No. 2018YFB0504500).

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参考文献

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[6]
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[10]
[11]
[12]
[13]
[14]
[15]

施引文献

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[1]
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[1]	姚晓岱, 吴爽, 赵锐, 吴淼鑫, 刘航, 金光勇, 于永吉.基于台阶声光调Q外腔泵浦MgO:PPLN光参量振荡器的3.4 μm中红外脉冲串激光器. 必威体育下载 , 2024, 73(4): 044206.doi:10.7498/aps.73.20231348
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[3]	曹士英, 林百科, 袁小迪, 丁永今, 孟飞, 方占军.掺Er光纤飞秒激光器中电光晶体对激光器参数的影响. 必威体育下载 , 2021, 70(7): 074203.doi:10.7498/aps.70.20201564
[4]	段延敏, 周玉明, 孙瑛璐, 李志红, 张耀举, 王鸿雁, 朱海永.声光调Q Nd:YVO₄晶体级联拉曼倍频窄脉宽657 nm激光器. 必威体育下载 , 2021, 70(22): 224209.doi:10.7498/aps.70.20210695
[5]	张蕴川, 樊莉, 魏晨飞, 顾晓敏, 任思贤.波长锁定878.9 nm激光二极管抽运内腔式YVO4/BaWO4连续波拉曼激光器. 必威体育下载 , 2018, 67(2): 024206.doi:10.7498/aps.67.20171848
[6]	张鑫, 张蕴川, 李建, 李仁杰, 宋庆坤, 张佳乐, 樊莉.波长锁定激光二极管共振泵浦Nd:YVO4晶体连续波自拉曼激光器的设计与研究. 必威体育下载 , 2017, 66(19): 194203.doi:10.7498/aps.66.194203
[7]	樊仲维, 邱基斯, 唐熊忻, 白振岙, 康治军, 葛文琦, 王昊成, 刘昊, 刘悦亮.用于空间碎片探测的百赫兹3.31 J高光束质量全固态Nd：YAG激光器. 必威体育下载 , 2017, 66(5): 054205.doi:10.7498/aps.66.054205
[8]	邱基斯, 唐熊忻, 樊仲维, 陈艳中, 葛文琦, 王昊成, 刘昊.用于汤姆孙散射诊断的高重频高光束质量焦耳级Nd:YAG纳秒激光器. 必威体育下载 , 2016, 65(15): 154204.doi:10.7498/aps.65.154204
[9]	樊莉, 陈海涛, 朱骏.激光二极管抽运的Nd：YVO4连续自拉曼1175nm激光器. 必威体育下载 , 2014, 63(15): 154208.doi:10.7498/aps.63.154208
[10]	朱海永, 张戈, 张耀举, 黄呈辉, 段延敏, 魏勇, 尉鹏飞, 于永丽.LD端面抽运c切Nd:YVO4自拉曼倍频589 nm黄光激光研究. 必威体育下载 , 2011, 60(9): 094209.doi:10.7498/aps.60.094209
[11]	张恒利, 闫莹, 杜克明.激光二极管端面抽运Nd∶YVO4晶体连续输出板条激光器研究. 必威体育下载 , 2008, 57(11): 6982-6986.doi:10.7498/aps.57.6982
[12]	武丁二, 周睿, 张晓华, 丁欣, 姚建铨, 颜彩繁, 张光寅.LD端抽运平直腔Nd:YVO4固态激光器的输出功率特性研究. 必威体育下载 , 2006, 55(3): 1196-1200.doi:10.7498/aps.55.1196
[13]	尚连聚.激光二极管端面抽运的1.34μm Nd:YVO4平凹腔型激光器. 必威体育下载 , 2003, 52(10): 2476-2480.doi:10.7498/aps.52.2476
[14]	尚连聚, 郑义.激光二极管端面抽运的1.34μm Nd:YVO4三镜折叠腔型激光器. 必威体育下载 , 2002, 51(9): 2015-2017.doi:10.7498/aps.51.2015
[15]	杨辉, 邱阳, 腾浩, 张军, 苍宇, 吕铁铮, 王兆华, 王鸿飞, 魏志义, 张杰.4.5MW小型化全固态腔倒空飞秒掺钛蓝宝石激光器. 必威体育下载 , 2001, 50(10): 1930-1934.doi:10.7498/aps.50.1930
[16]	何京良, 卢兴强, 贾玉磊, 满宝元, 祝世宁, 朱永元.BBO四倍频全固态Nd:YVO4紫外激光器. 必威体育下载 , 2000, 49(10): 2106-2108.doi:10.7498/aps.49.2106
[17]	张恒利, 何京良, 陈毓川, 侯玮, 刘嵘, 冯宝华, 许祖彦, 王建明, 吴星, 吴柏昌, 陈创天.激光二极管抽运Nd∶YVO4晶体1342nm和671nm激光器研究. 必威体育下载 , 1998, 47(9): 1579-1584.doi:10.7498/aps.47.1579
[18]	关信安, 赵智虹.同步泵浦-被动锁模染料激光器的基本方程及其解. 必威体育下载 , 1989, 38(1): 16-23.doi:10.7498/aps.38.16
[19]	关信安, 赵智虹.适用于CW同步泵浦染料激光器的锁模方程及其解. 必威体育下载 , 1988, 37(2): 335-340.doi:10.7498/aps.37.335
[20]	马锦秀, 徐至展.激光等离子体拍频波加速器中泵浦倒空的消除. 必威体育下载 , 1988, 37(10): 1652-1657.doi:10.7498/aps.37.1652

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