Coupling Waveguide Structure Design and Optimization of Optical Directional Full Couplers Weighted by Hamming Function

摘要：

The coupling waveguide structure design and optimization of optical directional full couplers (ODFCs) based on hamming weightings is investigated. The validity of approximation theory of optical directional full couplers becomes questionable when the coupling length is not enough long so the beam propagation method (BMP) is used. We propose a new design and numerically show that some optical properties of the optimized one are better than the optimized coupler with hamming function weighting. The objective of the work includes two parts; the fist part defines theory ranges and processing tolerance of optical directional full couplers. The second part is optimization waveguide structure of optical directional full couplers for low crosstalk, broad bandwidth and short coupler length. Definitely is hamming function (HF) weighting which proposed can obtain a better result after the structural design.

关键词： Optical Directional Full Couplers Hamming Function Weighting

作者: Yun-Sheng Ku Chi-Feng Chen

作者单位: Department of Mechanical Engineering, National Central University, Jhongli, Taiwan, China Institute of Opto-Mechatronics Engineering / Department of Mechanical Engineering, National Central

会议类型: 国际会议

会议名称: 2007亚洲显示国际会议（AD07）

会议地点: 上海

会议语种:英文

页码: 1875-1880

在线出版日期: 2007-03-12（万方平台首次上网日期，不代表论文的发表时间）