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Photonics 2019, 6(1), 25; https://doi.org/10.3390/photonics6010025

Numerical Study on the Soliton Mode-Locking of the Er3+-Doped Fluoride Fiber Laser at ~3 μm with Nonlinear Polarization Rotation

1
Hunan Key Laboratory for Micro-Nano Energy Materials and Devices, School of Physics and Optoelectronics, Xiangtan University, Xiangtan 411105, China
2
School of software and communication engineering, Xiangnan University, ChenZhou 423000, China
3
School of Information and Electrical Engineering, Hunan University of Science and Technology, Xiangtan 411201, China
*
Author to whom correspondence should be addressed.
Received: 16 February 2019 / Revised: 28 February 2019 / Accepted: 2 March 2019 / Published: 6 March 2019
(This article belongs to the Special Issue Fiber Lasers)
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Abstract

Recent interest in the application of mid-infrared (mid-IR) lasers has made the generation of ~3 µm ultrafast pulses a hot topic. Recently, the generation of femtosecond-scale pulses in Er3+-doped fluoride fiber lasers has been realized by nonlinear polarization rotation (NPR). However, a numerical study on these fiber lasers has not been reported yet. In this work, the output properties of the NPR passively mode-locked Er3+-doped fluoride fiber ring laser in ~3 µm have been numerically investigated based on the coupled Ginzburg–Landu equation. The simulation results indicate that stable uniform solitons (0.75 nJ) with the pulse duration of femtosecond-scale can be generated from this fiber laser. This numerical investigation can provide some reference for developing the high energy femtosecond soliton fiber lasers in the mid-IR. View Full-Text
Keywords: Er3+-doped fluoride fiber laser; mid-infrared; nonlinear polarization rotation mode-locking; ultra-short pulse Er3+-doped fluoride fiber laser; mid-infrared; nonlinear polarization rotation mode-locking; ultra-short pulse
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Zhang, F.; Yan, W.; Liang, S.; Tan, C.; Tang, P. Numerical Study on the Soliton Mode-Locking of the Er3+-Doped Fluoride Fiber Laser at ~3 μm with Nonlinear Polarization Rotation. Photonics 2019, 6, 25.

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