Switchable dual-mode all-fiber laser with few-mode fiber Bragg grating

Jin, Wenxing; Qi, Yanhui; Yang, Yong; Jiang, Youchao; Wu, Yue; Xu, Yao; Yao, Shuzhi; Jian, Shuisheng

doi:10.1088/2040-8986/aa7974

Cited by 20 publications

(8 citation statements)

References 32 publications

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“…Used as a mode convertor by controlling the wavelength of the desired mode, FM-FBG has been implemented to higher-order mode fiber laser. Under CW operation, the output mode of the laser can be selected to be LP01 mode, LP11 mode, or their mixing mode by adjusting the polarization state of light in the laser cavity [14][15][16][17]. This mode selection strategy has been also successfully applied to various types of mode-locked all-fiber lasers [18][19][20] and Q-switched fiber lasers [21].…”

Section: Introductionmentioning

confidence: 99%

Mode and Wavelength-Switchable Pulsed Fiber Laser With Few-Mode Fiber Grating

Cai

Wang

Wan

et al. 2019

IEEE Photon. Technol. Lett.

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We propose and demonstrate a mode and wavelength-switchable pulsed fiber laser using two-mode fiber Bragg grating (TM-FBG) as both transverse mode converter and wavelength selector. The mode-locking mechanism is based on saturable absorption of semiconductor saturable absorption mirror (SESAM). Due to the use of low polarization-dependent mode-locking method, polarization disturbation between mode-locking and transverse-mode selection has been effectively eliminated, thus enabling flexible transverse-mode selection with simultaneous mode-locking operation. Moreover, through the optimized offset launching technique, this laser can operate at the wavelengths of the fundamental mode (LP01) and second-order mode (LP11), and thus export cylindrical vector beams (CVBs) and fundamental mode beams at the TM-FBG output port, respectively. This all-fiber laser is a simple, low-cost and flexible source for mode-division multiplexing system and other applications.

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Section: Introductionmentioning

confidence: 99%

Mode and Wavelength-Switchable Pulsed Fiber Laser With Few-Mode Fiber Grating

Cai

Wang

Wan

et al. 2019

IEEE Photon. Technol. Lett.

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“…This EDFL can be switched among fifteen lasing states: four single-wavelength states, six dual-wavelength states, four three-wavelength states, and one four-wavelength state, all with high stability. W. Jin et al proposed a switchable dual-wavelength EDFL utilizing a few-mode FBG [20]. To increase the number of output wavelengths, Ying Guo et al achieved a 60-wavelength laser output within a 3 dB bandwidth in the 2-μm-band with a nonlinear dualpass Mach-Zehnder interferometer filter [21].…”

Section: Introductionmentioning

confidence: 99%

Switchable Multi-Wavelength Thulium-Doped Fiber Laser Using a Cascaded or Two-Segment Sagnac Loop Filter

Feng

Cheng

et al. 2022

IEEE Access

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A switchable multi-wavelength thulium-doped fiber laser (TDFL) using either two-stage cascaded or two-segment Sagnac loop filters are proposed and analyzed. Both filters incorporate a 3-m and 1.7-m long polarization-maintaining fiber, which acts as a comb filter. By adjusting two polarization controllers, when the TDFL used a cascaded Sagnac loop filter, eight stable single-wavelength operations were obtained with easy switching among them. The wavelength range was 16.36 nm during the singlewavelength switchable operation, with the optical signal-to-noise ratio up to 55 dB. This TDFL can achieve at most quintuple-wavelength operation. When the TDFL used a two-segment Sagnac loop filter, we achieved single-wavelength and dual-wavelength switchable. This TDFL can achieve at most stable quadruple-wavelength operation. In dual-wavelength switchable operation, the maximum and minimum wavelength spacings were 21.78 nm and 1.50 nm. Due to its abundant range of wavelengths, the proposed TDFLs has great potential in wavelength-division multiplexing.INDEX TERMS Multi-wavelength thulium-doped fiber laser, wavelength switchable, cascaded Sagnac loop filter, two-segment Sagnac loop filter.

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“…In 2014, B. Yin et al obtained a tunable and switchable EDFL based on polarization-maintaining fiber Bragg grating (PM-FBG) and polarization-maintaining chirped moiré fiber Bragg grating (PM-CMFBG) [12]. W. Jin et al proposed a switchable dual-wavelength EDFL with few-mode fiber Bragg grating [13]. However, FBG is easily damaged in experiments, and the number of output wavelengths is also limited.…”

Section: Introductionmentioning

confidence: 99%

Interval-Adjustable Multi-Wavelength Erbium-Doped Fiber Laser With the assistance of NOLM or NALM

Zhao

Wang

et al. 2021

IEEE Access

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A novel interval-adjustable multi-wavelength erbium-doped fiber laser (EDFL) is experimentally demonstrated in this paper. The proposed EDFL is based on the cascaded structure of two-segment Sagnac filter and nonlinear optical loop mirror (NOLM). By properly adjusting the polarization controllers (PCs), the wavelength interval and number of output wavelengths can be changed. When the wavelength interval is 2nm and 0.5nm, the number of wavelengths is 1-3 and 5-8, respectively. At the same time, when the number of output wavelengths is 6~8, the wavelengths can be tuned within a certain range. In order to compare the effects of two similar nonlinear loop mirrors on the outputs, a nonlinear amplifying loop mirror (NALM) is used to replace the NOLM in the laser cavity. The number of output wavelengths is increased to 10 when using NALM. The structure and principle of NOLM and NALM are analyzed. The influences of the two structures on the stability and output power of the laser are also discussed.

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Switchable dual-mode all-fiber laser with few-mode fiber Bragg grating

Cited by 20 publications

References 32 publications

Mode and Wavelength-Switchable Pulsed Fiber Laser With Few-Mode Fiber Grating

Mode and Wavelength-Switchable Pulsed Fiber Laser With Few-Mode Fiber Grating

Switchable Multi-Wavelength Thulium-Doped Fiber Laser Using a Cascaded or Two-Segment Sagnac Loop Filter

Interval-Adjustable Multi-Wavelength Erbium-Doped Fiber Laser With the assistance of NOLM or NALM

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