| 长周期波导光栅窄带光滤波器特性的模拟 |
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| 引用本文： | 张谦述,廖进昆,陆荣国,唐雄贵,李和平,刘永,刘永智.长周期波导光栅窄带光滤波器特性的模拟[J].发光学报,2009,30(3):356-362. |
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| 作者姓名： | 张谦述 廖进昆 陆荣国 唐雄贵 李和平 刘永 刘永智 |
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| 作者单位： | 1. 宽带光纤传输与通信教育部重点实验室 电子科技大学光电信息学院, 四川 成都 610054;2. 西华师范大学 物理与电子学院, 四川 南充 637002 |
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| 基金项目： | 国家自然科学基金重点项目，国家高技术研究发展计划(863计划)，NCET项目 |
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| 摘 要： | 利用两路平行的刻有长周期光栅(LPWG)波导间耦合的理论模型,研究了LPWG波导光滤波器,利用弱耦合实现高耦合效率和窄带滤波的方法,设计了一个窄带光滤波器。仿真结果表明,在1 530~1 560 nm范围,能实现单一的带通、带阻互补滤波输出,3 dB带宽为1 nm,耦合效率高达98%。
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| 关 键 词： | 集成光学 光电子器件 光滤波器 长周期波导光栅 耦合模理论 仿真 |
| 收稿时间： | 2008-11-10 |
Property Simulation of a Narrow Band-passed Optical Filter Based on Long-period Waveguide Grating |
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| ZHANG Qian-shu,LIAO Jin-kun,LU Rong-guo,TANG Xiong-gui,LI He-ping,LIU Yong,LIU Yong-zhi.Property Simulation of a Narrow Band-passed Optical Filter Based on Long-period Waveguide Grating[J].Chinese Journal of Luminescence,2009,30(3):356-362. |
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| Authors: | ZHANG Qian-shu LIAO Jin-kun LU Rong-guo TANG Xiong-gui LI He-ping LIU Yong LIU Yong-zhi |
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| Institution: | 1. Key Laboratory of Broadband Optical Fiber Transmission & Communication Networks, Ministry of Education, Opto-electronic Information School, University of Electronic Science & Technology of China, Chengdu 610054, China;2. Deptment of Physics and Electronic Information, China West Normal University, Nanchong 637002, China |
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| Abstract: | Using the model describing the coupling operation of two paralle waveguides with long-period waveguide grating (LPWG) thereon, the methods decreasing coupling coefficient of coupled modes to realize narrow band-passed optical filtering and high coupling efficiency were investigated in this paper. Meantime, a narrow band-passed optical filter was designed with these methods. The simulation results indicated that the filter could be realized with a single band-passed result and band-rejected result simultaneously in the wavelength range of 1 530 nm to 1 560 nm. The 3 dB band-width is only 1 nm. |
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| Keywords: | integrated optics electro-optical devices optical filter long-period waveguide grating coupled-mode theory simulation |
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