| 基于全息聚合物液晶光栅的动态增益均衡器的设计与模拟 |
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| 引用本文： | 郑继红,顾玲娟,庄松林,丁维银,沈国土,蔡继光,杨宝成.基于全息聚合物液晶光栅的动态增益均衡器的设计与模拟[J].中国激光,2006,33(8):087-1091. |
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| 作者姓名： | 郑继红 顾玲娟 庄松林 丁维银 沈国土 蔡继光 杨宝成 |
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| 作者单位： | 1. 上海理工大学光学与电子信息工程学院,上海,200093
2. 华东师范大学物理系光谱学与波谱学教育部重点实验室,上海,200062 |
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| 基金项目： | 上海市教委资助项目;上海市教委资助项目 |
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| 摘 要： | 介绍了聚合物分散液晶(PDLC)材料及体全息光栅的特性,提出了基于全息聚合物液晶(H-PDLC)电控光栅多极串联式动态增益均衡器的设计。根据光栅的衍射特性计算公式,对全息聚合物液晶光栅在中心波长为1550 nm的波长选择特性进行模拟,并且进一步利用遗传算法模拟实现全息聚合物液晶动态光强增益均衡器的功能。计算模拟表明,选择合适的全息聚合物液晶光栅参量,能够使光栅在1550 nm为中心波长的衍射谱线半宽度达到10 nm。同时,采用基于全息聚合物液晶的动态光强增益均衡器,能够使掺饵光纤放大器在1530~1560 nm内,其自发辐射谱的不平坦度从3.3 dB降到0.1 dBp-p(峰-峰值)。
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| 关 键 词： | 衍射与光栅 动态增益均衡器 聚合物分散液晶 体全息光栅 光通信器件 |
| 文章编号： | 0258-7025（2006）08-1087-05 |
| 收稿时间： | 2005-12-22 |
| 修稿时间： | 2006-04-10 |
Design and Simulation of Dynamic Gain Equalizer Based on Holographic Polymer Dispersed Liquid Crystal Volume Grating |
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| ZHENG Ji-hong,GU Ling-juan,ZHUANG Song-lin,DING Wei-yin,SHEN Guo-tu,CAI Ji-guang,YANG Bao-cheng.Design and Simulation of Dynamic Gain Equalizer Based on Holographic Polymer Dispersed Liquid Crystal Volume Grating[J].Chinese Journal of Lasers,2006,33(8):087-1091. |
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| Authors: | ZHENG Ji-hong GU Ling-juan ZHUANG Song-lin DING Wei-yin SHEN Guo-tu CAI Ji-guang YANG Bao-cheng |
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| Affiliation: | 1 College of Optics and Electronics Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China ; 2 Key Laboratory for Optical and Magnetic Resonance Spectroscopy of Ministry of Education, Department of Physics, East China Normal University, Shanghai 200062, China |
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| Abstract: | The characteristics of polymer dispersed liquid crystal(PDLC) and holographic polymer dispersed liquid crystal(H-PDLC) volume grating are introduced.Based on the novel H-PDLC volume gratings,series-connecting dynamic gain equalizer design is provided.Furthermore,simulations are made about wavelength selectivity of H-PDLC grating at(1550 nm) and the function of H-PDLC dynamic gain equalizer.The calculation results show that when suitable grating parameters of H-PDLC are selected,half spectral width of grating is about(10 nm) at central wavelength of(1550 nm.) And the fluctuation of spontaneous emission spectra of erbium-doped fiber amplifier(EDFA) can decrease from(3.3 dB) to(0.1 dB) within(1530 nm) to(1560 nm) based on H-PDLC dynamic gain equalizer. |
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| Keywords: | diffraction and gratings dynamic gain equalizer polymer dispersed liquid crystal volume grating optical communication device |
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