1.3-μm 2.8-ns electro-optical cavity damping Nd:YVO<sub>4</sub> laser

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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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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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References

[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]

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[1]
[2]
[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]

[1]	Yao Xiao-Dai, Wu Shuang, Zhao Rui, Wu Miao-Xin, Liu Hang, Jin Guang-Yong, Yu Yong-Ji.3.4 μm mid-infrared pulse train laser based on stepped acousto-opticQ-switched external cavity pumped MgO:PPLN optical parametric oscillator. Acta Physica Sinica, 2024, 73(4): 044206.doi:10.7498/aps.73.20231348
[2]	Wen Yu-Jun, Wang Peng, Xi Xiao-Ming, Zhang Han-Wei, Huang Liang-Jin, Yang Huan, Yan Zhi-Ping, Yang Bao-Lai, Shi Chen, Pan Zhi-Yong, Wang Xiao-Lin, Wang Ze-Feng, Xu Xiao-Jun.Laser diode directly backward pumped high-beam-quality 10-kW fiber laser. Acta Physica Sinica, 2022, 71(24): 244202.doi:10.7498/aps.71.20221433
[3]	Cao Shi-Ying, Lin Bai-Ke, Yuan Xiao-Di, Ding Yong-Jin, Meng Fei, Fang Zhan-Jun.Influence of electro-optic modulator on Er-doped fiber femtosecond laser. Acta Physica Sinica, 2021, 70(7): 074203.doi:10.7498/aps.70.20201564
[4]	Duan Yan-Min, Zhou Yu-Ming, Sun Ying-Lu, Li Zhi-Hong, Zhang Yao-Ju, Wang Hong-Yan, Zhu Hai-Yong.Frequency doubling of acousto-optic Q-switched Nd:YVO₄cascaded Raman laser for narrow pulse-width 657 nm laser. Acta Physica Sinica, 2021, 70(22): 224209.doi:10.7498/aps.70.20210695
[5]	Zhang Yun-Chuan, Fan Li, Wei Chen-Fei, Gu Xiao-Min, Ren Si-Xian.Continuous-wave intracavity YVO4/BaWO4 Raman laser pumped by a wavelength-locked 878.9 nm laser diode. Acta Physica Sinica, 2018, 67(2): 024206.doi:10.7498/aps.67.20171848
[6]	Zhang Xin, Zhang Yun-Chuan, Li Jian, Li Ren-Jie, Song Qing-Kun, Zhang Jia-Le, Fan Li.Research and design of continuous-wave Nd:YVO4 self-Raman laser in-band pumped by a wavelength-locked laser diode. Acta Physica Sinica, 2017, 66(19): 194203.doi:10.7498/aps.66.194203
[7]	Fan Zhong-Wei, Qiu Ji-Si, Tang Xiong-Xin, Bai Zhen-Ao, Kang Zhi-Jun, Ge Wen-Qi, Wang Hao-Cheng, Liu Hao, Liu Yue-Liang.A 100 Hz 3.31 J all-solid-state high beam quality Nd:YAG laser for space debris detecting. Acta Physica Sinica, 2017, 66(5): 054205.doi:10.7498/aps.66.054205
[8]	Qiu Ji-Si, Tang Xiong-Xin, Fan Zhong-Wei, Chen Yan-Zhong, Ge Wen-Qi, Wang Hao-Cheng, Liu Hao.High repetition rate and high beam quality joule level Nd: YAG nanosecond laser for Thomson scattering diagnosis. Acta Physica Sinica, 2016, 65(15): 154204.doi:10.7498/aps.65.154204
[9]	Fan Li, Chen Hai-Tao, Zhu Jun.Laser diode end-pumped continuous-wave Nd：YVO4 self-Raman laser at 1175 nm. Acta Physica Sinica, 2014, 63(15): 154208.doi:10.7498/aps.63.154208
[10]	Zhu Hai-Yong, Zhang Ge, Zhang Yao-Ju, Huang Cheng-Hui, Duan Yan-Min, Wei Yong, Wei Peng-Fei, Yu Yong-Li.LD end-pumped c-cut Nd:YVO4 laser at 589 nm generated by sef-Raman conversion and frequency doubling. Acta Physica Sinica, 2011, 60(9): 094209.doi:10.7498/aps.60.094209
[11]	Zhang Heng-Li, Yan Ying, Du Ke-Ming.Efficient diode stack end-pumped continuous-wave Nd∶YVO4 slab lasers. Acta Physica Sinica, 2008, 57(11): 6982-6986.doi:10.7498/aps.57.6982
[12]	Wu Ding-Er, Zhou Rui, Zhang Xiao-Hua, Ding Xin, Yao Jian-Quan, Yan Cai-Fan, Zhang Guang-Yin.Output characteristics of LD end-pumped Nd:YVO4 solid-state laser with flat-flat cavity. Acta Physica Sinica, 2006, 55(3): 1196-1200.doi:10.7498/aps.55.1196
[13]	Shang Lian-Ju.1.34μm Nd:YVO4 laser end-pumped by a diode-laser with flat-concave cavity type. Acta Physica Sinica, 2003, 52(10): 2476-2480.doi:10.7498/aps.52.2476
[14]	Shang Lian-Ju, Zheng Yi.. Acta Physica Sinica, 2002, 51(9): 2015-2017.doi:10.7498/aps.51.2015
[15]	YANG HUI, QIU YANG, TENG HAO, ZHANG JUN, CANG YU, LU TIE-ZHENG, WANG ZHAO-HUA, WANG HONG-FEI, WEI ZHI-YI, ZHANG JIE.GENERATION OF 4.5MW FEMTOSECOND PULSE WITH A COMPACT ALL SOLID-STATE CAVITY-DUMPED Ti:SAPPHIRE LASER. Acta Physica Sinica, 2001, 50(10): 1930-1934.doi:10.7498/aps.50.1930
[16]	HE JING-LIANG, LU XING-QIANG, JIA YU-LEI, MAN BAO-YUAN, ZHU SHI-NING, ZHU YONG -YUAN.ALL-SOLID-STATE Nd:YVO4 UV LASER AT 266nm BY FOURTH HARMONIC USING A BBO CRYSTAL. Acta Physica Sinica, 2000, 49(10): 2106-2108.doi:10.7498/aps.49.2106
[17]	ZHANG HENG-LI, HE JING-LIANG, CHEN YU-CHUAN, HOU WEI, LIU RONG, FENG BAO-HUA, XU ZU-YAN, WANG JIAN-MING, WU XING, WU BAI-CHANG, CHEN CHUANG-TIAN.DIODE PUMPED Nd∶YVO4 LASER EMITTING AT 1342nm AND 671nm. Acta Physica Sinica, 1998, 47(9): 1579-1584.doi:10.7498/aps.47.1579
[18]	GUAN XIN-AN, ZHAO ZHI-HONG.A BASIC EQUATION AND ITS SOLUTION FOR SYNCHRONOUSLY PUMPED-PASSIVE MODE-LOCKED DYE LASERS. Acta Physica Sinica, 1989, 38(1): 16-23.doi:10.7498/aps.38.16
[19]	GUAN XIN-AN, ZHAO ZHI-HONG.A NEW MODE-LOCKED EQUATION FOR SYNCHRONOUSLY PUMPED DYE LASERS AND ITS SOLUTION. Acta Physica Sinica, 1988, 37(2): 335-340.doi:10.7498/aps.37.335
[20]	MA JIN-XIU, XU ZHI-ZHAN.THE ELIMINATION OF PUMP DEPLETION IN LASER-PLASMA BEAT-WAVE ACCELERATORS. Acta Physica Sinica, 1988, 37(10): 1652-1657.doi:10.7498/aps.37.1652

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Vol. 72, Issue 14 - 2023-07-20

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