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Abstract

Quasi-continuous fiber lasers have a broad application prospect in the industrial field. However, in the current research on quasi-continuous wave (QCW) fiber lasers only the single-ended output structure is used. A double-ended output fiber laser oscillator needs only one resonator to realize two laser outputs. Compared with single-ended output laser, it has a low cost, small volume and high work efficiency. It is expected to achieve higher power laser output through double-ended output beam combining. Therefore, the double-ended output QCW fiber laser is proposed and studied in this paper. The steady-state rate equation establishes a theoretical model of a QCW fiber laser oscillator with two ends, considering the stimulated Raman scattering (SRS) and amplified spontaneous emission (ASE). The output power, time domain and nonlinear effects of this type of laser are simulated. The results show that the overshoot effect caused by relaxation oscillation will produce a large amount of thermal deposition and ultra-high peak power in the fiber. It will reduce the nonlinear threshold and limit the increase of power of the QCW fiber laser. Prolonging the rise time of the pump can effectively suppress the relaxation oscillation and obtain a stable pulse output during the pulse duration. In addition, compared with the single-ended QCW laser, the double-ended output structure changes the energy distribution in the fiber and reduces the accumulation of nonlinear effects in the gain fiber, thus inhibiting SRS. Then, the ytterbium-doped fiber with a core/cladding diameter of 20/400 μm is used to achieve the first double-ended QCW laser output with a peak power of 3 kW. The peak power values at both ends are 1218 and 2220 W, respectively. The values of corresponding beam quality factor M ²are 1.34 and 1.27. The optical-to-optical conversion efficiency is about 60%. The pulse width is 100 μs, and the repetition frequency is 1 kHz. This research verifies the feasibility of high power and high beam quality output by double-ended output QCW fiber laser, which provides support for small volume, low cost, high power and high brightness QCW fiber laser. Further breakthroughs in the research and application of high-power fiber lasers are expected to be made by continually optimizing experiments, increasing pump power, and improving the laser’s output power and conversion efficiency.

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Authors and contacts

Corresponding author:Wang Xiao-Lin,chinaphotonics@163.com

Funds:Project supported by the Fund for Distinguished Young Scholars of Hunan Province, China (Grant No. 2023JJ10057).

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[1]
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[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
[21]
[22]
[23]
[24]
[25]
[26]
[27]

Cited By

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年份	科研单位	结构/型号	峰值功率/kW	平均功率 /kW	光束质量因子M²	脉宽/ms	频率/kHz
2013	中国科学院理化技术研究所^[9]	空间MOPA结构(Nd:YAG平板放大器)	0.564^#	0.0423	1.56	0.075	1
2015	中国科学院理化技术研究所^[3]	空间MOPA结构(Nd:YAG平板放大器)	102.5^#	8.2	>3.5	0.2	0.4
2020	中国科学院理化技术研究所^[4]	空间MOPA结构(Nd:YAG平板放大器)	2.2^#	0.0861	1.37	0.1	0.4
2022	国防科技大学^[5]	全光纤振荡器	9.7	0.898	～2.4	0.1	1
2022	国防科技大学^[6]	全光纤振荡器	6.5	0.501	1.38	0.1	1
2022	国防科技大学^[7]	全光纤振荡器	7.3	0.5689	1.43	0.1	1
2023	国防科技大学^[8]	全光纤振荡器	10.75	0.973	～1.61	0.09	1
2015	IPG^[10]	YLM-150/1500-QCW	1.5	0.150	1.05	0.05—50	0—50
2015	IPG^[11]	YLM-250/2500-QCW	2.5	0.250	1.05	0.05—50	0—50
2015	IPG^[12]	YLS-2000/20000-QCW	20	2	12.33^#, 44^#	0.2—10	2
2016	IPG^[13]	YLS-2300/23000-QCW	23	2.3	12.33^#, 44^#	0.2—10	2
2018	武汉锐科^[14]	RFL-QCW450/1500FS	1.5	0.450	<1.45^#, <5.82^#	0.1—75	0.050—5
2018	武汉锐科^[15]	RFL-QCW150/1500	1.5	0.150	<1.45^#, <5.82^#	0.05—50	0—5
2021	武汉锐科^[16]	RFL-QCW1500/15000	15	1.5	<11.64^#	0.05—50	0—5
2019	创鑫激光^[17]	MFSQ-150/1500W	1.5	0.150	1.3, 2.8	0.1—50	0.001—5
2019	创鑫激光^[18]	MFSQ-500/2500W	2.5	0.500	2.5	0.1—50	0.001—5
注: 标#数据根据已知数据计算得出.

DownLoad: CSV

物理量	物理意义	上下标符号	物理意义
$P$	功率	$ + $	正向
${N_0}$	掺杂离子浓度	$ - $	反向
${N_1}$	基态粒子数密度	p	泵浦光
${N_2}$	激发态粒子数密度	s	信号光
A_core	纤芯面积	$m$	泵浦光波长序数
A_eff	纤芯有效面积^[24]	$n$	信号光波长序数
$\lambda $	波长	$N$	信号光波长离散数
$z$	增益光纤的轴向坐标	e	发射截面
$\varGamma $	填充因子	a	吸收截面
$\sigma $	吸收发射截面	$ {\text{OC1}} $	输出耦合光栅1
$R$	反射率	${\text{OC2}}$	输出耦合光栅2
$a$	损耗系数
g_R	拉曼增益系数
$\tau $	激发态粒子寿命
$\nu $	光波频率
$\omega $	光波角频率
B_eff	斯托克斯辐射的有效带宽
Δλ	实际增益光谱带宽
L	增益光纤长度
h	普朗克常量
$\hbar $	约化普朗克常量
c	光速

DownLoad: CSV

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[3]
[4]
[5]
[6]
[7]
[8]
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[16]
[17]
[18]
[19]
[20]
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Vol. 72, Issue 15 - 2023-08-05

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