| 基于粒子群优化的二阶拉曼光纤放大器研究 |
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| 引用本文： | 巩稼民，张晨，郝倩文，等. 基于粒子群优化的二阶拉曼光纤放大器研究[J]. 光电工程，2020，47(11)：190747. doi: 10.12086/oee.2020.190747 |
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| 作者姓名： | 巩稼民 张晨 郝倩文 张丽红 王杰 |
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| 作者单位： | 西安邮电大学电子工程学院，陕西 西安 710121 |
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| 基金项目： | 国家自然科学基金资助项目(61775180);西安邮电大学研究生创新基金项目(CXJJLY2019052) |
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| 摘 要： | 为了进一步提升二阶拉曼光纤放大器(RFA)的性能指标，对二阶RFA的主要参数进行了分析。首先设计了一个可以通过光开关控制，在二阶和一阶RFA两种模式下切换的结构模型，通过模拟仿真证明了二阶RFA可以提高系统的增益，改善系统的噪声性能，然后针对二阶RFA的增益性能进行了优化，以降低平坦度为优化目标，使用粒子群算法优化泵浦光波长和功率的配置，再经过结构的改进，最终在100 nm带宽范围内实现了增益为24.50 dB，增益平坦度为0.98 dB的二阶RFA。这些结果为以后设计出性能更加完善的二阶RFA提供了参考。
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| 关 键 词： | 拉曼光纤放大器 二阶泵浦 增益 平坦度 粒子群算法 |
| 收稿时间： | 2019-12-23 |
| 修稿时间： | 2020-03-02 |
Research on second-order Raman fiber amplifier based on particle swarm optimization |
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| Gong J M, Zhang C, Hao Q W, et al. Research on second-order Raman fiber amplifier based on particle swarm optimization[J]. Opto-Electron Eng, 2020, 47(11): 190747. doi: 10.12086/oee.2020.190747 |
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| Authors: | Gong Jiamin Zhang Chen Hao Qianwen Zhang Lihong Wang Jie |
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| Affiliation: | School of Electronic Engineering, Xi'an University of Posts and Telecommunications, Xi'an, Shaanxi 710121, China |
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| Abstract: | In order to further improve the performance index of second-order Raman fiber amplifier, the main parameters of second-order RFA were analyzed. First, a structural model that can be controlled by optical switches and switched between two modes of traditional second-order and traditional first-order RFA is designed. It is proved through simulation that second-order RFA can increase the system gain and improve noise performance. The gain performance of first-order RFA is optimized. The optimization goal is to reduce the flatness. The particle swarm optimization algorithm is used to optimize the configuration of the wavelength and power of the pump light. After further structural improvement, a second-order RFA with a gain of 24.50 dB and a gain flatness of 0.98 dB were achieved in a 100 nm bandwidth. These results provide a reference for the design of second-order RFA with better performance in the future. |
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| Keywords: | Raman fiber amplifier second-order pump gain flatness particle swarm optimization |
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