LI Ke; YE Yun; LI Xinran; DING Xinyi; XU Xiaoyong; SU Rongtao; WANG Xiaolin; NING Yu; XI Fengjie

doi:10.7498/aps.74.20250072

Abstract

High-power fiber laser oscillators have been widely used in industrial processing, material processing, biomedical and other fields due to their compact structure, simple logic and strong power scalability. With the increasing demand for laser performance in industrial applications, bidirectional output fiber laser based on a single resonator structure has a broad application prospect. In this work, we first establish a theoretical model for a 1050-nm bidirectional output fiber laser oscillator based on the steady-state rate equation, and simulate the relationship between the length of the gain fiber and output power, efficiency, and the intensity of stimulated Raman scattering (SRS). A high-power bidirectional output fiber laser with a central wavelength of 1050 nm is built using an ytterbium-doped fiber with a core/cladding diameter of 20/400 μm. The output characteristics of the 1050-nm bidirectional output fiber laser oscillator under different pump methods (unidirectional pump, bidirectional pump) are experimentally studied in detail. With a total pump power of 5262 W, A-end output power reaches 1419 W and B-end output power reaches 3051 W. Therefore, a total output power of 4470 W with an optical-to-optical conversion efficiency of 84.9% is achieved. The corresponding beam qualities (M² factor) of both ends are 1.27 and 1.31 when the output powers reach 1458 W and 2733 W, respectively. By further optimizing the length of the gain fiber, the amplified spontaneous emission (ASE) and SRS are effectively suppressed. With a total pump power of 5262 W, the Raman suppression ratios at A-end and B-end are enhanced by ~6.6 dB and ~8.1 dB, respectively. It is expected that higher output power can be achieved by increasing the pump power and optimizing the laser structure in the future.

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Authors and contacts

Corresponding author: YE Yun, yeyun2015@163.com ; SU Rongtao, surongtao@126.com ;

Funds: Project supported by the Fund for Distinguished Young Scholars of Hunan Province, China (Grant No. 2023JJ10057) and the Training Program for Excellent Young Innovations of Changsha, China (Grant No. kq2305038).

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[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]

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物理量	物理意义	物理量	物理意义
R	反射率	${N_2}$	激发态粒子数
Z	增益光纤纵向坐标	${N_1}$	基态粒子数
$m$	泵浦光波长序数	${N_0}$	掺杂离子浓度
$n$	信号光波长序数	${g_{\text{R}}}$	拉曼增益系数
${A_{{\text{eff}}}}$	纤芯有效面积	$\sigma _n^{{\text{es}}}$	第n个信号光吸收截面
${\varGamma _{\text{s}}}$	信号光填充因子	$\sigma _n^{{\text{as}}}$	第n个信号光发射截面
${\varGamma _{\text{p}}}$	泵浦光填充因子	$\alpha _n^{\text{p}}(\lambda _n^{\text{p}})$	信号光损耗系数

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主要参数	值
信号光中心波长/nm	1050
泵浦光中心波长/nm	976
总泵浦功率/W	6000
纤芯/内包层/μm	20/400
泵浦吸收系数	0.44 dB/m@915 nm
增益光纤长度/m	16.6/14.6/12.6/10.6/8.6
FBG-A的反射率/%	10
FBG-B的反射率/%	10
FBG-A的半高全宽/nm	2
FBG-B的半高全宽/nm	2

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Vol. 74, Issue 10 - 2025-05-20

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