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Design of Compact TE/TM Polarization Beam Splitter Based on Silicon-on-Insulator Ridge Nanowire Directional Coupler
| Content Provider | Semantic Scholar |
|---|---|
| Author | Jianwei, 王剑威 Wang Daoxin, 戴道锌 Dai Yaocheng, 时尧成 Shi Liu, 杨柳 Yang |
| Copyright Year | 2010 |
| Abstract | Abstract A compact TE/TM polarization beam splitter (PBS) based on a silicon-on-insulator (SOI) ridge nanowire directional coupler is designed and optimized by using a finite-element method (FEM) and a finite difference time domain (FDTD) method. Considering the fabrication precision and the mode mismatching loss in a directional coupler, a gap width about 100 nm is chosen. The ridge height, the ridge width and the gap of two parallel nanowires are optimized to have the shortest length for the polarization splitter. The numerical simulations show that the optimized PBS has a short length of about 17.3 μm, and the waveguide width has a fabrication tolerance of about-20~10 nm, and the bandwidth is about 50 nm when the extinction ratios for both polarizations are larger than 15 dB. |
| Starting Page | 051301 |
| Ending Page | 051301 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.3788/LOP47.051301 |
| Volume Number | 47 |
| Alternate Webpage(s) | http://www.opticsjournal.net/ViewFull0.htm?aid=OJ1004220000327C9FbH |
| Alternate Webpage(s) | http://www.opticsjournal.net/ViewFullPDF.htm?aid=OJ1004220000327C9FbH |
| Alternate Webpage(s) | https://doi.org/10.3788/LOP47.051301 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
