Xiao-yu BAI, Ji WANG, Xu-dong SUN, et al. Simulation of 1 550 nm Femtosecond Pulse Self-similar Fiber Amplification[J]. Chinese journal of luminescence, 2022, 43(2): 268-274.
DOI:
Xiao-yu BAI, Ji WANG, Xu-dong SUN, et al. Simulation of 1 550 nm Femtosecond Pulse Self-similar Fiber Amplification[J]. Chinese journal of luminescence, 2022, 43(2): 268-274. DOI: 10.37188/CJL.20210319.
Simulation of 1 550 nm Femtosecond Pulse Self-similar Fiber Amplification增强出版
an all-fiber structure of ultrashort pulse erbium-doped fiber amplifier was simulated
and the self-similar pulse amplification processed of erbium-doped fiber under normal dispersion conditions was analyzed in detail. In the fiber pre-amplifier
a high positive dispersion erbium-doped fiber was be used to pre-shape the pulse shape. The soliton mode-locked pulse with the repetition frequency of 43 MHz
pulse width of 600 fs
and average output power of 1.2 mW was pre-shaped into a parabolic pulse. The pre-shaped pulse is amplified by the optical fiber main amplifier. After two-stage optical fiber amplification
the signal optical power of 1.2 mW was amplified to 102 mW
and the amplification gain was 19.3 dB. The influence of erbium-doped fiber length and amplification power on the evolution of pulse self-similarity was analyzed in this article. The amplified pulse was compressed to 53 fs through 4.4 m long single-mode fiber and the peak power was 44.8 kW.
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