[1] Zhenxu Bai, Zhongan Zhao, Menghan Tian, et al. A comprehensive review on the development and applications of narrow-linewidth lasers. Microwave and Optical Technology Letters, 64, 2244-2255(2022).

[2] Weina Peng, Pixian Jin, Fengqin Li, et al. A review of the high-power all-solid-state single-frequency continuous-wave laser. Micromachines, 12, 1426(2021).

[3] Wei Shi, Shijie Fu, Quan Sheng, et al. Research progress on high-performance single-frequency fiber lasers: 2017-2021 (invited). Infrared and Laser Engineering, 51, 20210905(2022).

[4] Shijie Fu, Wei Shi, Yan Feng, et al. Review of recent progress on single-frequency fiber lasers. JOSA B, 34, A49-A62(2017).

[5] E Granados, G Stoikos. Spectral purification of single-frequency Stokes pulses in doubly resonant integrated diamond resonators. Optics Letters, 47, 3976-3979(2022).

[6] X Huo, Y Qi, Y Zhang, et al. Research development of 589 nm laser for sodium laser guide stars. Optics and Lasers in Engineering, 134, 106207(2020).

[7] Y Yu, X Chen, L Cheng, et al. Continuous-wave 1.57 µm/3.84 µm intra-cavity multiple optical parametric oscillator based on MgO: APLN. Acta Physica Sinica, 64, 224215(2015).

[8] Wei Yue, Yongchang Han, S Dongye, et al. Development of large-sized silicon substrate 633 nm and 3.5-4.1 μm dual-band high reflection coatings. Infrared and Laser Engineering, 41, 1854-1857(2012).

[9] Z Bai, C Zhao, J Gao, et al. Optical parametric oscillator with adjustable pulse width based on KTiOAsO₄. Optical Materials, 136, 13506(2023).

[10] Yuheng Wang, Heyan Liu, Zeyu Wang, et al. 4.1 μm high power mid-infrared intracavity optical parametric oscillator. Acta Photonica Sinica, 48, 0823002(2019).

[11] Jiayu Huang, Haifeng Lin, Peiguang Yan. Highly efficient, widely tunable fan-out MgO:PPLN mid-infrared optical parametric oscillator. Infrared and Laser Engineering, 52, 20220605(2023).

[12] Aiziheerjiang Abulikemu, Dana Jiashaner, Zhou Yuxia, et al. High-beam-quality idler-resonant mid-infrared optical parametric oscillator based on MgO:PPLN. Infrared and Laser Engineering, 52, 0214001(2023).

[13] Feifei Wang, Jiatong Li, Xiaohui Sun, et al. High-power and high-efficiency 4.3 μm ZGP-OPO. Chinese Optics Letters, 20, 79-83(2022).

[14] Xingchen Jiang, Dehua Cheng, Yeqiu Li, et al. Research on mid-infrared laser at 35 kHz based on optical parametric oscillator. Infrared and Laser Engineering, 51, 20210817(2022).

[15] Jinzhu Ge, Zijian Wang, Yuheng Wang, et al. Study on high efficiency 3.4 μm optical parametric oscillation based on external cavity MgO:PPLN pumped by fiber laser. Journal of Changchun University of Science and Technology (Natural Science Edition), 46, 1-6(2023).

[16] Bingyan Chen, Yongji Yu, Chunting Wu, et al. High efficiency mid-infrared 3.8 μm MgO: PPLN optical parametric oscillator pumped by narrow linewidth 1064 nm fiber laser. Chinese Optics, 14, 361-367(2021).

[17] Zhigang Zhao, Hu Liu, Defei Wang, et al. 3.705 μm compact optical parametric oscillator. Laser & Infrared, 49, 51-54(2019).

[18] Yaru Niu, Xing Yan, Jiaxuan Chen, et al. Research progress on periodically poled lithium niobate for nonlinear frequency conversion. Infrared Physics & Technology, 125, 104243(2022).

[19] Kuanshou Zhang, Huadong Lu, Yuanji Li, et al. Progress on high-power low-noise continuous-wave single-frequency all-solid-state lasers. Chinese Journal of Lasers, 48, 0501002(2021).

[20] Muye Li, Xuezong Yang, Yuxiang Sun, et al. Single-frequency continuous-wave diamond Raman laser (Invited). Infrared and Laser Engineering, 51, 20210970(2022).

[21] D Jin, Z Bai, Z Lu, et al. 22.5 W narrow-linewidth diamond Brillouin laser at 1064 nm. Optics Letters, 47, 5360-5363(2022).

[22] K I Martin, W A Clarkson, D C Hanna. Self-suppression of axial mode hopping by intracavity second-harmonic generation. Optics Letters, 22, 375-377(1997).

[23] O Lux, S Sarang, O Kitzler, et al. Intrinsically stable high-power single longitudinal mode laser using spatial hole burning free gain. Optica, 3, 876-881(2016).

[24] X Yang, O Kitzler, D J Spence, et al. Single-frequency 620 nm diamond laser at high power, stabilized via harmonic self-suppression and spatial-hole-burning-free gain. Optics Letters, 44, 839-842(2019).

[25] Muye Li, Xuezong Yang, Yuxiang Sun, et al. Single-longitudinal mode operation and stimulated Brillouin scattering suppression in a diamond Raman laser. Optics Express, 31, 8622-8631(2023).

[26] [26] Wang Yuheng. Study on Nd: MgO:PPLN in infrared selfoptical parametric oscillat[D]. Changchun: Changchun University of Science Technology, 2019. (in Chinese)

[27] [27] Wang Zijian. Study on 1 064 nm master oscillat power amplifier pumped PPMgLN infrared optical parametric oscillat [D]. Changchun: Changchun University of Science Technology, 2016. (in Chinese)