[1] Kadwani P, Sims R, Baudele M, et al. Atmospheric propagation testing using broadband thulium fiber systems [C]. Advances in Optical Materials, 2011.
[2] Chu Y F, Liu D, Wang Z Z, et al. Basic principle and technical progress of Doppler wind lidar [J]. Chinese Journal of Quantum Electronics, 2020, 37(5): 580-600.
[4] Yu Y, Ma F, Luo X Y, et al. Entanglement of two quantum memories via fibres over dozens of kilometres [J]. Nature, 2020, 578: 240-245.
[5] Chandra S, Wager M E, Clayton B, et al. 2 μm-pumped 8-12 μm OPO source for remote chemical sensing [C]. Proceedings of SPIE, 2000, 4036: 200-208.
[6] Agger S, Povlsen J H, Varming P. Single-frequency thulium-doped distributed-feedback fiber laser [J]. Optics Letters, 2004, 29(13): 1503-1505.
[7] Zhang Z, Shen D Y, Boyland A J, et al. High-power Tm-doped fiber distributed-feedback laser at 1943 nm [J]. Optics Letters, 2008, 33(18): 2059-2061.
[8] Geng J H, Wu J F, Jiang S B, et al. Efficient operation of diode-pumped single-frequency thulium-doped fiber lasers near 2 μm [J]. Optics Letters, 2007, 32(4): 355-357.
[9] Yang Q, Xu S H, Li C, et al. A single-frequency linearly polarized fiber laser using a newly developed heavily Tm3+-doped germanate glass fiber at 1.95 μm [J]. Chinese Physics Letters, 2015, 32(9): 094206.
[10] He X, Xu S H, Li C, et al. 1.95 μm kHz-linewidth single-frequency fiber laser using self-developed heavily Tm3+-doped germanate glass fiber [J]. Optics Express, 2013, 21(18): 20800-20805.
[11] Yin T C, Song Y F, Jiang X G, et al. 400 mW narrow linewidth single-frequency fiber ring cavity laser in 2 μm waveband [J]. Optics Express, 2019, 27(11): 15794-15799.
[12] Yao B, Chen Q F, Chen Y J, et al. 280 mHz linewidth DBR fiber laser based on PDH frequency stabilization with ultrastable cavity [J]. Chinese Journal of Lasers, 2021, 48(5): 0501014.
[13] Fu S J, Shi W, Lin J C, et al. Single-frequency fiber laser at 1950 nm based on thulium-doped silica fiber [J]. Optics Letters, 2015, 40(22): 5283-5286.
[14] Fu S J, Shi W, Sheng Q, et al. Compact hundred-mW 2 μm single-frequency thulium-doped silica fiber laser [J]. IEEE Photonics Technology Letters, 2017, 29(11): 853-856.
[15] Guan X C, Yang C S, Qiao T, et al. High-efficiency sub-watt in-band-pumped single-frequency DBR Tm3+-doped germanate fiber laser at 1950 nm [J]. Optics Express, 2018, 2(6): 6817-6825.
[16] Guan X C, Yang C S, Gu Q, et al. 55 W kilohertz-linewidth core-and in-band-pumped linearly polarized single-frequency fiber laser at 1950 nm [J]. Optics Letters, 2020, 45(8): 2343-2346.
[17] Zhang Q, Hou Y B, Song W H, et al. Pump RIN coupling to frequency noise of a polarization-maintaining 2 μm single frequency fiber laser [J]. Optics Express, 2021, 29(3): 3221-3229.
[18] Zhang W N, Li C, Mo S P, et al. A compact low noise single frequency linearly polarized DBR fiber laser at 1550 nm [J]. Chinese Physics Letters, 2012, 29(8): 084205.
[19] Wei S S, Liu Y H, Chen Q F, et al. Sideband-locked high-power 780 nm laser source for precise measurement based on Rb atoms [J]. Chinese Journal of Lasers, 2021, 48(7): 0701008.