ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Wavelength switchable mode-locked fiber laser with a few-mode fiber filter |
Shaokang Bai(白少康), Yujin Xiang(向昱锦), and Zuxing Zhang(张祖兴)† |
Advanced Photonic Technology Laboratory, College of Electronic and Optical Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China |
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Abstract We have proposed and constructed a few-mode fiber (FMF)-based comb filter realized by dislocation splicing a few-mode long-period fiber grating (FM-LPFG) with a single-mode fiber (SMF). From an all-fiber laser with a FMF-based comb filter, the generation of switchable single-, dual-, triple-, and quadruple-wavelength continuous light has been achieved. Moreover, wavelength switchable mode-locked pulses have been obtained with the increased pump power. In the experiment, the output wavelength of the mode-locked fiber laser was changed from 1567.72 nm to 1571.04 nm, while the signal-to-noise (SNR) ratio was maintained above 61 dB. The switchable multiwavelength continuous wave (CW) and mode-locked all-fiber lasers have potentially important applications for fiber sensing, wavelength-division multiplexing (WDM) and signal processing.
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Received: 16 March 2022
Revised: 18 May 2022
Accepted manuscript online: 29 May 2022
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PACS:
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42.55.Wd
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(Fiber lasers)
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42.65.Re
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(Ultrafast processes; optical pulse generation and pulse compression)
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42.81.Dp
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(Propagation, scattering, and losses; solitons)
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42.81.-i
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(Fiber optics)
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Fund: Project supported by the National Natural Science Foundation of China (Grant Nos. 91950105 and 62175116) and the 1311 talent plan of Nanjing University of Posts and Telecommunications. |
Corresponding Authors:
Zuxing Zhang
E-mail: zxzhang@njupt.edu.cn
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Cite this article:
Shaokang Bai(白少康), Yujin Xiang(向昱锦), and Zuxing Zhang(张祖兴) Wavelength switchable mode-locked fiber laser with a few-mode fiber filter 2023 Chin. Phys. B 32 024209
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