Numerical simulation of pulse states in dual-pump figure-of-eight fiber lasers

He Xu; Shengping Chen; Zongfu Jiang

doi:10.1117/12.2522930

14 February 2019 Numerical simulation of pulse states in dual-pump figure-of-eight fiber lasers

He Xu, Shengping Chen, Zongfu Jiang

Proceedings Volume 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018); 1104838 (2019) https://doi.org/10.1117/12.2522930
Event: 17th International Conference on Optical Communications and Networks (ICOCN2018), 2018, Zhuhai, China

Abstract

We numerically present the generation of five types of pulse states using nonlinear Schrödinger equations in an all-normal-dispersion (ANDi) mode-locked fiber laser based on a nonlinear amplifying loop mirror (NALM). Using a two-dimensional pump power space of the two amplifiers, we investigate the pulse characteristics among typical dissipative soliton resonance (DSR), dissipative soliton (DS), transition state (TS) between DS and DSR, noise-like pulse (NLP) and unstable pulsation state. Different from previous research results, we firstly find that asymmetric coupling ratio of the NALM causes dependent and non- monotonous variation of the pulse peak power and width of DSR. The location of incident power and the saturable power of NALM (when the former is 2 times higher, higher, equal, lower than the later) determine the pulse states (NLP, DSR, unstable, DS or TS) in the cavity. The pump-power intercoupling-induced frequency-selective NALM transmission is demonstrated by the simulated pulse evolution over round-trips.

Citation Download Citation

He Xu, Shengping Chen, and Zongfu Jiang "Numerical simulation of pulse states in dual-pump figure-of-eight fiber lasers", Proc. SPIE 11048, 17th International Conference on Optical Communications and Networks (ICOCN2018), 1104838 (14 February 2019); https://doi.org/10.1117/12.2522930

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KEYWORDS

Fiber lasers

Fiber amplifiers

Optical amplifiers

Mode locking

Amplifiers

Solitons

Numerical simulations

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