[1] LI Z, HEIDT A M, SIMAKOV N, et al. Diode-pumped wideband thulium-doped fiber amplifiers for optical communications in the 1800-2050 nm window[J]. Optics Express, 2013, 21(22): 26450-26455. doi: 10.1364/OE.21.026450
[2] FU B, GUI L, LI X, et al. Generation of 35 nJ nanosecond pulse from a passively mode-locked Tm, Ho-codoped fiber laser with graphene saturable absorber[J]. IEEE Photonics Technology Letters, 2013, 25(15): 1447-1449. doi: 10.1109/LPT.2013.2264456
[3] VOGLER N, HEUKE S, BOCKLITZ T W, et al. Multimodal imaging spectroscopy of tissue[J]. Annual Review of Analytical Chemistry, 2015, 8: 359-387. doi: 10.1146/annurev-anchem-071114-040352
[4] FU B, POPA D, ZHAO Z, et al. Wavelength tunable soliton rains in a nanotube-mode locked Tm-doped fiber laser[J]. Applied Physics Letters, 2018, 113(19): 193102. doi: 10.1063/1.5047492
[5] BEWERSDORF J, HELL S W. Picosecond pulsed two-photon ima- ging with repetition rates of 200 and 400 MHz[J]. Journal of Microscopy, 1998, 191(1): 28-38. doi: 10.1046/j.1365-2818.1998.00379.x
[6] LIN H, GUO C, RUAN S, et al. Tunable and switchable dual-wavelength dissipative soliton operation of a weak-birefringence all-normal-dispersion Yb-doped fiber laser[J]. IEEE Photonics Journal, 2013, 5(5): 1501807. doi: 10.1109/JPHOT.2013.2281977
[7] ZHANG Z X, XU Z W, ZHANG L. Tunable and switchable dual-wavelength dissipative soliton generation in an all-normal-dispersion Yb-doped fiber laser with birefringence fiber filter[J]. Optics Express, 2012, 20(24): 26736-26742. doi: 10.1364/OE.20.026736
[8] XING L, TONG H T, SAINI T S, et al. Tunable and switchable all-fiber dual-wavelength mode locked laser based on Lyot filtering effect[J]. Optics Express, 2019, 27(10): 14635-14647. doi: 10.1364/OE.27.014635
[9] REN F, ZHANG J, NIU J, et al. A switchable multi-wavelength EDFL using cascaded Sagnac fiber loops with mode differential delay line[J]. Optik, 2021, 248: 168182. doi: 10.1016/j.ijleo.2021.168182
[10] PENG Y, ZHANG A, PAN H, et al. Tunable and switchable multi-wavelength actively Q-switched fiber laser based on electro-optic modulator and an improved Sagnac filter[J]. Optics & Laser Technology, 2022, 150: 108001.
[11] 朱可, 裴丽, 赵琦, 等. 采用双Sagnac环滤波器的可切换多波长光纤激光器. 红外与激光工程, 2020, 49(11): 20200047.ZHU K, PEI L, ZHAO Q, et al. Switchable multi-wavelength fiber laser utilizing double Sagnac loop filter[J]. Infrared and Laser Engineering, 2020, 49(11): 20200047(in Chinese).
[12] CHEN E, LIU S, LU P, et al. Tunable 2 μm fiber laser utilizing a modified sagnac filter incorporating cascaded polarization maintaining fibers[J]. IEEE Photonics Journal, 2020, 12(1): 1-7.
[13] TIAN J, ZUO Y, HOU M, et al. Magnetic field measurement based on a fiber laser oscillation circuit merged with a polarization-maintaining fiber Sagnac interference structure[J]. Optics Express, 2021, 29(6): 8763-8769. doi: 10.1364/OE.419306
[14] LI M, ZOU X, WU J, et al. Tunable passively harmonic mode-locked Yb-doped fiber laser with Lyot-Sagnac filter[J]. Applied Optics, 2015, 54(29): 8800-8803. doi: 10.1364/AO.54.008800
[15] ZHOU J, YAN P, ZHANG H, et al. All-fiber mode-locked ring laser with a Sagnac filter[J]. IEEE Photonics Technology Letters, 2011, 23(18): 1301-1303. doi: 10.1109/LPT.2011.2159833
[16] XING L, TONG H T, SAINI T S, et al. Switchable dual-wavelength mode-locked fiber laser using Saganc loop mirror[J]. Optics Communications, 2020, 463: 125457. doi: 10.1016/j.optcom.2020.125457
[17] LI W, YIN Z, QIU J, et al. Swtichable and tunable multi-wavelength dissipative soliton Yb-doped fiber laser based on tunable Lyot-Sagnac filter[C]//2014 OptoElectronics and Communication Conference and Australian Conference on Optical Fibre Technology. New York, USA: IEEE, 2014: 489-491.
[18] LI T, YAN F, CHENG D, et al. Switchable multi-wavelength thulium-doped fiber laser using a cascaded or two-segment Sagnac loop filter[J]. IEEE Access, 2022, 10: 13026-13037. doi: 10.1109/ACCESS.2022.3146414
[19] ZHAO X, HU G, ZHAO B, et al. Picometer-resolution dual-comb spectroscopy with a free-running fiber laser[J]. Optics Express, 2016, 24(19): 21833-21845. doi: 10.1364/OE.24.021833
[20] FELLINGER J, MAYER A S, WINKLER G, et al. Tunable dual-comb from an all-polarization-maintaining single-cavity dual-color Yb ∶fiber laser[J]. Optics Express, 2019, 27(20): 28062-28074. doi: 10.1364/OE.27.028062