標題: | A Numerical Solution for Broadband PLC Splitter with Variable Splitting Ratio Based on Asymmetric Three Waveguide Structures |
作者: | Wang, Hseng-Tsong Chen, Chi-Feng Chi, Sien 光電工程學系 光電工程研究所 Department of Photonics Institute of EO Enginerring |
關鍵字: | adiabatic directional coupler;variable power splitting ratio;blackman weighting function;splitter;waveguide |
公開日期: | 1-五月-2019 |
摘要: | A numerical solution for the broadband planar-lightwave-circuit (PLC) splitter with a variable splitting ratio based on asymmetric three waveguides weighted by the Blackman weighting function is designed for passive optical network applications with wavelengths between 1.53 and 1.57 mu m. The performance of the proposed splitter is verified using the beam propagation method (BPM). It was found that a polynomial function of the splitting ratios accompanying a geometrical shift can be derived from the proposed splitter. The splitting ratio can be changed from 50:50 to 90:10 with this geometrical shift. The excess loss, crosstalk, polarization dependent loss, and splitting ratio variations against wavelength of the proposed splitter with wavelengths between 1.53 and 1.57 mu m are better than 0.139 dB, -22.75 dB, 0.006 dB, and 0.335%, respectively. Obviously, the proposed splitter with variable splitting ratio retains the advantages of the symmetric design, such as low excess loss, low crosstalk, polarization insensitivity, broadband, and wavelength insensitivity. |
URI: | http://dx.doi.org/10.3390/app9091892 http://hdl.handle.net/11536/152393 |
DOI: | 10.3390/app9091892 |
期刊: | APPLIED SCIENCES-BASEL |
Volume: | 9 |
Issue: | 9 |
起始頁: | 0 |
結束頁: | 0 |
顯示於類別: | 期刊論文 |