Laser & Optoelectronics Progress, Volume. 57, Issue 9, 091401(2020)
Theoretical Analysis of Self-Similar Pulse Generation in 2 μm Thulium-Doped Fiber Laser
Based on a theoretical model of a 2-μm thulium-doped mode-locked fiber laser and nonlinear Schr?dinger equation (NLSE), this study analyzed the evolution conditions of self-similar pulses in the laser. The peak power output of the self-similar pulse was approximately 22.66 W. Further, the effects of parameters, such as net dispersion, length of dispersion-compensation fiber, and gain coefficient on self-similar pulses were simultaneously studied. The results show that increasing the net dispersion in the cavity and the length of the dispersion-compensation fiber increases the pulse width and decreases the energy of the single pulse. Moreover, increasing the small-signal gain coefficient increases both the pulse width and energy of the single pulse.
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Zhengnan Shi, Fengping Yan, Wenguo Han, Luna Zhang. Theoretical Analysis of Self-Similar Pulse Generation in 2 μm Thulium-Doped Fiber Laser[J]. Laser & Optoelectronics Progress, 2020, 57(9): 091401
Category: Lasers and Laser Optics
Received: Aug. 20, 2019
Accepted: Sep. 10, 2019
Published Online: May. 6, 2020
The Author Email: Yan Fengping (fpyan@bjtu.edu.cn)