The impact of saturable absorber recovery time on hybrid mode-locked fiber lasers with near zero net dispersion

Qigui Huang; Hongbo Jiang; Lei Jin; Zhenxin Gao; Guanque Hu; Xinxu Duan; Li Li

Results in Optics (Dec 2023)

The impact of saturable absorber recovery time on hybrid mode-locked fiber lasers with near zero net dispersion

Qigui Huang,
Hongbo Jiang,
Lei Jin,
Zhenxin Gao,
Guanque Hu,
Xinxu Duan,
Li Li

Affiliations

Qigui Huang: Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Hongbo Jiang: Qingdao Innovation and Developent Center of Harbin Engineering University, Qingdao 266000, China; Corresponding authors at: Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China.
Lei Jin: Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China; Qingdao Innovation and Development Base, Harbin Engineering University, Qingdao 266000, China; Qingdao Innovation and Developent Center of Harbin Engineering University, Qingdao 266000, China; Corresponding authors at: Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China.
Zhenxin Gao: Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Guanque Hu: Key Laboratory of In-Fiber Integrated Optics of Ministry of Education, College of Physics and Optoelectronic Engineering, Harbin Engineering University, Harbin 150001, China
Xinxu Duan: Qingdao Innovation and Development Base, Harbin Engineering University, Qingdao 266000, China
Li Li: School of Physics, Harbin Institute of Technology, Harbin 150001, China

Journal volume & issue: Vol. 13
p. 100551

Abstract

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The hybrid mode-locking scheme holds great potential in obtaining high power ultrashort laser source since it overcomes low damage threshold, self-starting difficulty in single real saturable absorber (SA) or artificial SA mode-locking scheme. Here we numerically studied the effect of SA’s recovery time on the stability of laser output in an all polarization-maintaining (PM) Erbium-doped fiber laser with hybrid mode-locking scheme, operating at the near zero net dispersion. The mapping relationship between fiber fused angles of nonlinear polarization rotation (NPR) section and different mode-locking states is demonstrated. The proportion of stable single pulse operating points increased from 7 % to more than 77 %, as the recovery time of the SA was reduced from 10 ps to 0.1 ps. The results indicate that the laser output states with hybrid mode-locking scheme could be highly affected by the SA recovery time, when the cavity net dispersion is in near zero regime.

Published in Results in Optics

ISSN: 2666-9501 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Physics: Optics. Light
Website: https://www.journals.elsevier.com/results-in-optics

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