| 两点法设计平场型EDG波分复用器件 |
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| 引用本文： | 文泓桥,何赛灵,盛钟延,石志敏,何建军. 两点法设计平场型EDG波分复用器件[J]. 光子学报, 2003, 32(3): 307-310 |
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| 作者姓名： | 文泓桥 何赛灵 盛钟延 石志敏 何建军 |
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| 作者单位： | 浙江大学现代光学仪器国家重点实验室,光及电磁波研究中心,杭州,310027 |
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| 基金项目： | 浙江省科技计划重大项目 (项目号 0 0 110 10 2 7) |
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| 摘 要： | 利用两点法(two stigmatic points method)对平场型蚀刻衍射光栅(EDG)波分复用器件进行了优化设计.与传统EDG相比,该方法以较小的性能损失为代价,极大简化了制作工艺.通过标量波动衍射理论对16通道的该型器件进行了数值模拟,结果表明:在用光探测器陈列接收的情况下,额外的功率损耗约为1dB,信道间的不均匀性小于0.3dB,串绕小于-30dB.
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| 关 键 词： | 蚀刻衍射光栅 平场型 两点法 波分复用 |
| 收稿时间： | 2002-05-29 |
| 修稿时间： | 2002-05-29 |
Design of a Flat-field EDG Wavelength Demultiplexer Using a Two Stigmatic Points Method |
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| Wen Hongqiao,He Sailing,Sheng Zhongyan,Shi Zhimin,He Jianjun State Key Laboratory for Modern Optical Instrumentation,Center for Optical and Electromagnetic Research,Zhejiang University,Hangzhou. Design of a Flat-field EDG Wavelength Demultiplexer Using a Two Stigmatic Points Method[J]. Acta Photonica Sinica, 2003, 32(3): 307-310 |
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| Authors: | Wen Hongqiao He Sailing Sheng Zhongyan Shi Zhimin He Jianjun State Key Laboratory for Modern Optical Instrumentation Center for Optical Electromagnetic Research Zhejiang University Hangzhou |
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| Affiliation: | Wen Hongqiao,He Sailing,Sheng Zhongyan,Shi Zhimin,He Jianjun State Key Laboratory for Modern Optical Instrumentation,Center for Optical and Electromagnetic Research,Zhejiang University,Hangzhou 310027 |
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| Abstract: | A flat-field etched diffraction grating (EDG) wavelength demultiplexer is much more convenient in fabrication. An optimal design of such device is presented using a two stigmatic points method. The characteristics of the device are also analyzed based on a numerical simulation with the scalar wave theory.The numerical results show that the additional loss is about 1 dB,the uniformity of different channel is less than 0.3 dB and the crosstalk is below than -30 dB. |
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| Keywords: | EDG Flat-field Two stigmatic points WDM |
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