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1.宁波大学高等技术研究院 红外材料与器件实验室, 浙江 宁波 315211
2.浙江省光电探测材料及器件重点实验室, 浙江 宁波 315211
3.浙江省海洋研究院, 浙江 宁波 315211
4.吉林大学 集成光电子学国家重点实验室, 吉林 长春 130012
Published:05 April 2023,
Received:18 October 2022,
Revised:06 November 2022,
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ZHANG Min,WANG Xiange,LI Ningzhe,et al.Low Crosstalk Structure Design and Performance Simulation in 19-core Tellurite Glass Amplification Fiber[J].Chinese Journal of Luminescence,2023,44(04):694-700.
张敏,王弦歌,李宁哲等.19芯碲酸盐玻璃放大光纤的低串扰结构设计及性能仿真[J].发光学报,2023,44(04):694-700. DOI: 10.37188/CJL.20220371.
ZHANG Min,WANG Xiange,LI Ningzhe,et al.Low Crosstalk Structure Design and Performance Simulation in 19-core Tellurite Glass Amplification Fiber[J].Chinese Journal of Luminescence,2023,44(04):694-700. DOI: 10.37188/CJL.20220371.
基于空分复用技术的多芯光纤通信核心指标之一是信道串扰,该问题的存在极大地影响着传输距离及信号质量,尤其是在宽带光纤放大系统中。本文重点讨论了弱耦合19芯光纤的串扰问题,同时提出了一种利于多组分碲酸盐玻璃挤压制备的沟槽辅助型19芯光纤,并采用耦合功率理论和有限元法对模型进行了相关性能的数值仿真,系统研究了沟槽尺寸、折射率分布及相关光纤参数对芯间串扰的影响。仿真结果表明,优化设计后的光纤在1 550 nm处拥有-156 dB/100 m的低串扰值,可以满足大容量光纤通信用宽带光放大器的应用需求。
Channel crosstalk is one important feature of multi-core fiber communication based on space division multiplexing technology, which could affect the signal quality and transmission distance of the broadband fiber amplification system. This paper is focused on the crosstalk problems of a 19-core weak coupling optical fiber, as that can benefit much to develop high-volume communicating fiber based on fiber extrusion technology. Then, the optical coupling theory and finite element method are adopted to complete the numerical simulation of fiber performance, here, key parameters of groove size, core refractive index distribution and their influence on the crosstalk of the fiber are optimized wholly. The simulation results show that the optimized fiber has a low crosstalk of -156 dB/100 m at 1 550 nm, which could meet the requirements of future long-distance high-capacity optical fiber communication.
低串扰19芯光纤沟槽辅助型多组分碲酸盐玻璃
low crosstalk19-core fibertrench assistedmulticomponent tellurite glass
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