| WANG Xiaofa,WANG Jie,DUAN Xianyi.Experimental investigation on evolution of a split multi-wavelength bright-dark pulse in a mode-locked thulium-doped fiber laser[J].Optoelectronics Letters,2022,(12):717-722 |
| Experimental investigation on evolution of a split multi-wavelength bright-dark pulse in a mode-locked thulium-doped fiber laser |
| Author Name | Affiliation | | WANG Xiaofa | Chongqing Key Laboratory of Photoelectronic Information Sensing and Transmitting Technology, School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China[][*? This work has been supported by the Natural Science Foundation of Chongqing City, China No.cstc2018jcyjAX0585. | | WANG Jie | Chongqing Key Laboratory of Photoelectronic Information Sensing and Transmitting Technology, School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China[][*? This work has been supported by the Natural Science Foundation of Chongqing City, China No.cstc2018jcyjAX0585. | | DUAN Xianyi | Chongqing Key Laboratory of Photoelectronic Information Sensing and Transmitting Technology, School of Optoelectronic Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China[][*? This work has been supported by the Natural Science Foundation of Chongqing City, China No.cstc2018jcyjAX0585. |
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| Abstract: |
| We report the experimental observation of evolving phenomenon of a split multi-wavelength bright-dark pulse in the nonlinear amplifying loop mirror (NALM)-based mode-locked thulium-doped fiber laser (TDFL) with a figure-eight configuration. Bright-dark pulse with 10 wavelengths was successfully obtained at the pump power of 3 W. The time interval between the bright and dark pulses was discovered not only increasing linearly with the pump power but also approximately equaling to the reciprocal of modulation frequency of radio frequency (RF) spectrum. Moreover, we also observed that the spectrum of split multi-wavelength bright-dark pulse can further present up to 13 wavelengths. |
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