| 一种通带平坦的粗波分复用/解复用器件的研制 |
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| 引用本文： | 刘青,马卫东,王文敏,胡国华,许远忠.一种通带平坦的粗波分复用/解复用器件的研制[J].光学学报,2004,24(9):265-1268. |
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| 作者姓名： | 刘青 马卫东 王文敏 胡国华 许远忠 |
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| 作者单位： | 武汉邮电科学研究院光迅科技有限责任公司,武汉,430074;武汉邮电科学研究院光迅科技有限责任公司,武汉,430074;武汉邮电科学研究院光迅科技有限责任公司,武汉,430074;武汉邮电科学研究院光迅科技有限责任公司,武汉,430074;武汉邮电科学研究院光迅科技有限责任公司,武汉,430074 |
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| 基金项目： | 国家高技术研究发展计划 (86 3) (2 0 0 1AA312 0 2 0 )，武汉市科技计划 (2 0 0 2 10 0 5 130 0 6 )资助课题。 |
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| 摘 要： | 随着粗波分复用(CWDM)系统在城域网和接入网中日益广泛的应用，人们对粗波分复用／解复用器的研究也逐渐展开。报道了一种8通道波长间隔为20nm的粗复用／解复用器。该器件基于阵列波导光栅(AWG)原理设计，利用平面光波导技术(PLC)制作，采用多模干涉输入结构和“S”形阵列波导结构，实现了较宽的通带宽度和较低的串扰。实验测得1dB带宽大于10nm，相邻串扰大于24dB，非相邻串扰大于32dB。介绍了其设计原理和制作过程，给出了光束传播法(BPM)数值模拟结果，并和实验结果进行了对比。
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| 关 键 词： | 平面光波导 粗波分复用器 阵列波导光栅 带宽 串扰 |
| 收稿时间： | 2003/9/15 |
The Research of Coarse Wavelength Division Multiplexer Based on Array Waveguide Grating with Broadened Pass-Band and Low Crosstalk |
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| Liu Qing,Ma Weidong,Wang Wenmin,Hu Guohua,Xu Yuanzhong.The Research of Coarse Wavelength Division Multiplexer Based on Array Waveguide Grating with Broadened Pass-Band and Low Crosstalk[J].Acta Optica Sinica,2004,24(9):265-1268. |
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| Authors: | Liu Qing Ma Weidong Wang Wenmin Hu Guohua Xu Yuanzhong |
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| Abstract: | A CWDM with a 20 nm spacing and 8 channels based on AWG is successfully fabricated on 4-inch Si wafer using 0.75%-Δ silica-based waveguides by planar lightwave circuit (PLC) technology. Both simulations and measured results show that broadened pass-band (1 dB bandwidth is above 10 nm)and low crosstalk (no less than 24 dB) are realized by applying a short multimode interference (MMI) structure at the end of input waveguide. The design and fabrication process are introduced, and the simulations and measured results are discussed. |
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| Keywords: | plane lightwave circuit coarse wavelength division multiplexer array waveguide grating bandwidth crosstalk |
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