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| 对偏振变动和膜厚变动脱敏的高分子波导宽带耦合器 | |
| 引用本文： | 周建忠,陈抱雪,贾洪波,赵德欣,袁一方,矶守.对偏振变动和膜厚变动脱敏的高分子波导宽带耦合器[J].光子学报,2004,33(4):424-427. |
| 作者姓名： | 周建忠 陈抱雪 贾洪波 赵德欣 袁一方 矶守 |
| 作者单位： | 1. 上海理工大学光电学院,上海,200093 2. 霓塔光电器件上海有限公司,上海,200233 3. 日本东京农工大学工学部应用化学系,日本,184-8588 |
| 摘 要： | 针对高分子光波导制造工艺中波导芯厚度的均匀性难以控制,以及材料较大的折射率各向异性引起的偏振态依赖性的实际问题,提出了采用抗波导芯厚度误差、抗偏振变动的宽带波导耦合器回路结构的解决方案,并给出了优化设计的理论和方法.在实测了含氟聚酰亚胺薄膜的色散特性的基础上,采用该方法做了中心波长为1550 nm、带宽为120 nm的3 dB含氟聚酰亚胺波导耦合器设计.该器件的三维BPM仿真运行结果表明,在上述带宽上,波导芯厚度变动在7～8 μm的范围内,两个正交偏振态均可实现(50±1.0)% 功率输出比的良好特性. |
| 关 键 词： | 光波导 含氟聚酰亚胺光波导 抗偏振变动 抗膜厚变动 |
| 收稿时间： | 2003-05-21 |
| 修稿时间： | 2003年5月21日 |
Polarization-independent and Thickness-insensitive Broad-band Fluorinated Polyimide Waveguide Coupler |
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.Polarization-independent and Thickness-insensitive Broad-band Fluorinated Polyimide Waveguide Coupler[J].Acta Photonica Sinica,2004,33(4):424-427. |
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| Authors: | |
| Institution: | (1 College of Optics and Electron Information Engineering, University of Shanghai for Science and Technology, Shanghai 200093) (2 Nitta Shanghai Co., Ltd, Shanghai 200233) (3 Department of Chemical Engineering, Tokyo University of Agriculture and Technology, Japan 184-8588) |
| Abstract: | A statistical optimum design method suitable for polarization-independent and thickness-insensitive for broad-band waveguide coupler is proposed. Using the method, the fluorinated polyimide waveguide 3 dB coupler for 1490~1610 nm is designed with the optimization of the polarization and thickness fluctuation of the waveguide’s core. The design result is verified by the 3D-BPM simulation, and shows coupling ratio of (50±1.0)% in the 120 nm waveband and thickness fluctuation region of 7~8 μm for the two orthogonal polarizations. |
| Keywords: | Optical waveguide Fluorinated polyimide waveguide Polarization independent Thickness insensitive |
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