提出了一种基于光纤Bragg光栅Fabry-Pérot (F-P)窄带滤波器和复合双环腔滤波器的单纵模掺铥光纤激光器。通过对复合双环腔进行数值仿真并实验制作,结合光纤Bragg光栅F-P滤波器的窄带滤波特性,实现了光纤激光器的单纵模选取。激光器输出波长为1 941.56 nm,光信噪比为55.8 dB
A single-longitudinal-mode(SLM) thulium-doped fiber laser based on an F-P narrowband filter and compound rings cavity is proposed. The compound rings incorporated in the cavity can help to achieve SLM lasing by adjusting the cavity FSR and it also plays the role of narrowband filtering. A theoretical model which can numerically calculate the transmission spectrum of the complex multi-ring sub-cavity filter is proposed. The output wavelength of the laser source is 1 941.56 nm
and the optical signal-to-noise ratio is 55.8 dB. The wavelength and power fluctuations within 70 min were less than 0.019 nm and 1.464 dB
respectively. Experimental results also show that the laser operates in a stable SLM state. The frequency noise characteristic of the proposed SLM laser was measured by a homemade unbalanced Michelson interferometer
and laser linewidth under different measurement time was estimated from the frequency noise spectra based on the
β
-separation line method. The calculated laser linewidth in 2 ms measurement time is 14.194 kHz.
LIU B, JIA C L, ZHANG H, et al. DBR-fiber-laser-based active temperature sensor and its applications in the measurement of fiber birefringence [J].Microw. Opt. Technol. Lett., 2010, 52(1):41-44.
XIONG L Y, HOFMANN P, SCHÜLZGEN A, et al. Short monolithic dual-wavelength single-longitudinal-mode DBR phosphate fiber laser [J].Appl. Opt., 2014, 53(18):3848-3853.
MATSUOKA T, YOSHIKUNI Y, MOTOSUGI G. Dependence of single-longitudinal-mode probability on DFB laser facet structure [J].Electron. Lett., 1985, 21(24):1151-1152.
CHEN X F, YAO J P, ZENG F, et al. Single-longitudinal-mode fiber ring laser employing an equivalent phase-shifted fiber Bragg grating [J].IEEE Photon. Technol. Lett., 2005, 17(7):1390-1392.
RODRÍGUEZ-COBO L, QUINTELA M A, ROTA-RODRIGO S, et al. Single-longitudinal mode laser structure based on a very narrow filtering technique [J].Opt. Express, 2013, 21(8):10289-10294.
WANG Z K, SHANG J M, MU K L, et al. Stable single-longitudinal-mode fiber laser with ultra-narrow linewidth based on convex-shaped fiber ring and sagnac loop [J].IEEE Access, 2019, 7:166398-166403.
FENG S J, MAO Q H, TIAN Y Y, et al. Widely tunable single longitudinal mode fiber laser with cascaded fiber-ring secondary cavity [J].IEEE Photon. Technol. Lett., 2013, 25(4):323-326.
GENG J H, WANG Q, JIANG S B. 2 μm fiber laser sources and their applications [C].Proceedings of the SPIE 8164, Nanophotonics and Macrophotonics for Space Environments V, San Diego, California, 2011:816409.
MENG J, ZHANG W, ZHAO K Q, et al. Investigation on the performance of a homemade thulium-doped fiber laser oscillator [J].Chin. Opt., 2019, 12(5):1109-1117. (in Chinese)
MELESHKEVICH M, PLATONOV N, GAPONTSEV D, et al. 415 W single-mode CW thulium fiber laser in all-fiber format [C].Proceedings of 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, Munich, 2007.
TANG Y L, HUANG C Y, WANG S L, et al. High-power narrow-bandwidth thulium fiber laser with an all-fiber cavity [J].Opt. Express, 2012, 20(16):17539-17544.
FU S J, SHI W, LIN J C, et al. Single-frequency fiber laser at 1 950 nm based on thulium-doped silica fiber [J].Opt. Lett., 2015, 40(22):5283-5286.
QI S X, HOU Y B, ZHANG Q, et al. High-power, narrow linewidth single-frequency fiber laser at 2 μm [C].Proceedings of the SPIE 10619, 2017 International Conference on Optical Instruments and Technology:Advanced Laser Technology and Applications, Beijing, China, 2018.
HAN W G, YAN F P, FENG T, et al. Wavelength-switchable single-longitudinal- mode thulium-doped fiber laser with sampled fiber Bragg grating [J].IEEE Access, 2021, 9:62212-62218.
BAI Y, YAN F P, HAN W G, et al. High-stability laser phase demodulation system based on 3×3 polarization maintaining fiber coupler [J].Opt. Precision Eng., 2019, 27(4):739-746. (in Chinese)
LEMIEUXJ F, BELLEMARE A, LATRASSE C, et al. 100 GHz frequency step-tunable hybrid laser based on a vernier effect between a Fabry-Perot cavity and a sampled fiber Bragg grating [C].Proceedings of Advanced Semiconductor Lasers and Their Applications, Santa Barbara, California, 1999:1-186.
FENG T, JIANG M L, WEI D, et al. Four-wavelength-switchable SLM fiber laser with sub-kHz linewidth using superimposed high-birefringence FBG and dual-coupler ring based compound-cavity filter [J].Opt. Express, 2019, 27(25):36662-36679.
XU D, YANG F, CHEN D J, et al. Laser phase and frequency noise measurement by Michelson interferometer composed of a 3×3 optical fiber coupler [J].Opt. Express, 2015, 23(17):22386-22393.
DI DOMENICO G, SCHILT S, THOMANN P. Simple approach to the relation between laser frequency noise and laser line shape [J].Appl. Opt., 2010, 49(25):4801-4807.
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].Opt. Express, 2019, 27(11):15794-15799.
WANG W T, SONG Z Q, QI H F, et al. Study of a single longitudinal fiber ring laser with a π phase-shifted fiber Bragg grating [J].Opt. Commun., 2017, 396:88-91.
FOSTER S. Low-frequency thermal noise in optical fiber cavities [J].Phys. Rev. A, 2012, 86(4):043801-1-8.
FOSTER S, CRANCH G A, TIKHOMIROV A. Experimental evidence for the thermal origin of 1/f frequency noise in erbium-doped fiber lasers [J].Phys. Rev. A, 2009, 79(5):053802.
A Tunable Single-longitudinal-mode Thulium-doped Fiber Laser Enabled by A Passive Double-ring Compound Sub-cavity Filter
Single-longitudinal Mode Thulium-doped Fiber Laser in 2 050 nm Band Based on Passive Compound Triple-ring Cavity
High-power Thulium-doped Fiber Laser and Its Application in Biological Tissue Cutting
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