1.6 μm波段锁模光纤器 -

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1.6 μm波段锁模光纤器

doi:10.37188/CO.2021-0128

孙有生^{1, 3,},
端木庆铎^1,,,
林鹏^{2, 3,},
马万卓^{2, 3,},
王天枢^{2, 3,}

1.
长春理工大学理学院，吉林长春 130022
2.
长春理工大学光电工程学院，吉林长春 130022
3.
长春理工大学空间光电技术国家地方联合工程研究中心，吉林长春 130022

基金项目:国家自然科学基金青年科学基金（No. 62005024）；吉林省科技发展计划（No. 2019201271JC）

详细信息

作者简介:
孙有生（1989—），男，吉林长春人，博士研究生，2012年于长春理工大学获学士学位，2014年至今于长春理工大学攻读博士学位，主要从事超快光纤器方面的研究。E-mail：2016200013@cust.edu.com
端木庆铎（1956—），男，吉林长春人，博士，教授，1982年毕业于长春光学精密机械学院，获学士学位，1991年于长春光学精密机械学院获硕士学位，2003年于长春理工大学获得博士学位，在光电成像系统领域发表论文60余篇，发明5项以上。他的研究方向包括光电薄膜器件和成像系统。E-mail：duanmu@cust.edu.cn
林　鹏（1994—），男，吉林延边人，博士，2016年于长春理工大学获得学士学位，2021年于长春理工大学获得博士学位，主要从事超快光纤器和光纤大气传输特性的研究。E-mail：Linpeng2905@163.com
马万卓（1989—），男，吉林长春人，博士，讲师，2012年于长春理工大学获得学士学位，2016年于长春理工大学获得硕士学位，2019年于长春理工大学获得博士学位，现为长春理工大学讲师。主要从事超快光纤光学、非线性光学等方面的研究。E-mail：mawz@cust.edu.cn
王天枢（1975—），男，吉林长春人，博士，教授，1998年于解放军装甲兵工程学院获学士学位，2004年于吉林大学获硕士学位，2007年毕业于中国长春吉林大学，获电子工程博士学位。自2013年以来，一直担任长春理工大学教授。他撰写或合作撰写了关于光纤器及其应用的100多篇论文和一本著作，以及10多项发明。他的研究方向包括光纤器和自由空间通信。E-mail：wangts@cust.edu.cn

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出版历程
- 收稿日期:2021-06-22
- 修回日期:2021-07-12
- 网络出版日期:2021-09-09
- 刊出日期:2021-11-19

1.6 μm band mode-locked fiber laser

SUN You-sheng^{1, 3,},
DUANMU Qing-duo^1,,,
LIN Peng^{2, 3,},
MA Wan-zhuo^{2, 3,},
WANG Tian-shu^{2, 3,}

1.
College of Science, Changchun University of Science and Technology, Changchun 130022, China
2.
College of Opto-Electronic Engineering, Changchun University of Science and Technology, Changchun 130022, China
3.
National and Local Joint Engineering Research Center of Space Optoelectronics Technology, Changchun University of Science and Technology, Changchun 130022, China

Funds:Supported by National Natural Science Foundation-Youth Science Foundation of China (No. 62005024); Jilin Province Science and Technology Development Plan (No. 2019201271JC)

More Information

Corresponding author:duanmu@cust.edu.cn

摘要

摘要:为了获得基于孤子自频移效应的1.6 μm波段锁模脉冲，设计了一种非线性偏振旋转的掺铒光纤器，并利用双输出结构检测脉冲。在泵浦功率为350 mW时，通过适当调节偏振控制器，同时在两个输出端观察到中心波长为1560 nm的类噪声脉冲，3 dB带宽为17.5 nm，脉冲持续时间为968 fs。进一步将泵浦功率增加至550 mW，输出端1的类噪声脉冲保持不变，输出端2的类噪声脉冲的中心波长红移至1614 nm，3 dB带宽增加至64.4 nm，脉冲持续时间减小至302 fs。谐振腔的最大输出功率为11.4 mW。同时，实验分析了色散位移光纤的长度对孤子自频移的影响，结果表明，在一定范围内，色散位移光纤的长度越长，孤子自频移的频移间距越小。实验研究的1.6 μm波段光纤器在光学通信领域具有潜在的应用价值。
- 孤子自频移/
- 非线性偏振旋转/
- 光纤器/
- 类噪声脉冲/
- 色散位移光纤
Abstract:In order to obtain the 1.6 μm-band mode-locked pulse based on the soliton self-frequency shift effect, an erbium-doped fiber laser with nonlinear polarization rotation is designed, whose pulse is detected by a dual-output structure. At a pump power of 350 mW, the noise-like pulses with the central wavelength of 1560 nm are detected at the two outputs at the same time by properly adjusting the polarization controller. The 3 dB bandwidth is 17.5 nm, and the pulse duration is 968 fs. When the pump power is further increased to 550 mW, and the 1-port noise-like pulse remains fixed, the central wavelength of the 2-port noise-like pulse redshifts to 1614 nm, the 3 dB bandwidth increases to 64.4 nm, and the pulse duration decreases to 302 fs. The maximum output power of the resonant cavity is 11.4 mW. The experiment also analyzes the influence of the length of dispersion shifted fiber on soliton self-frequency shift. The results show that within a certain range, as the length of the dispersion shifted fiber increases, the frequency shift distance of the soliton self-frequency shift decreases. This 1.6-μm band fiber laser has potential applications in the field of optical communications.
- soliton self-frequency shift/
- nonlinear polarization rotation/
- fiber laser/
- noise-like pulse/
- dispersion shifted fiber

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图 1 器结构

Figure 1.The structure of laser cavity

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图 2端口1的脉冲光谱

Figure 2.Pulse spectrum in port 1

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图 31端口脉冲的自相关迹

Figure 3.The AC trace of pulse in port1

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图 4端口2光谱随泵浦功率的变化情况

Figure 4.Spectrum of the port 2 varying with the pump power

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图 5端口2类噪声脉冲的输出光谱和时域脉冲序列

Figure 5.Output spectrum and time domain pulse sequence of NLP in port 2

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图 6两端口输出脉冲中心波长的对比

Figure 6.Comparison of the center wavelength of pulse in two output ports

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图 7有DCF和无DCF时的光谱对比

Figure 7.Comparison of spectra with DCF and without DCF

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表 1不同DSF长度对应的频移间距

Table 1.Frequency shift spacing corresponding to different DSF lengths

DSF长度/m	6	18	30	42	54	66	72
频移间距/nm	56.7	49.4	47.9	50.2	46.5	45.9	41.7

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表 2两种状态下类噪声脉冲性能的对比

Table 2.Comparison of output pulse performance in two states

	中心波长/nm	3 dB带宽/nm	尖峰宽度/fs	峰值功率/kW
加入DCF	1614	62.47	302	3.7
未加入DCF	1559.8	12.61	675	1.5

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