Loading...
Please wait, while we are loading the content...
Similar Documents
Design of a SiO₂ top-cladding and compact polarization splitter-rotator based on a rib directional coupler.
| Content Provider | Semantic Scholar |
|---|---|
| Author | Wang, Jing Niu, Ben-yu Sheng, Zhen Yu Wu, Aimin Wang, Xi Zou, Shichang Qi, Minghao Gan, Fuwan |
| Copyright Year | 2014 |
| Abstract | A compact polarization splitter-rotator based on a silicon-on-insulator rib asymmetrical directional coupler with SiO2 top-cladding is proposed. Unlike previously reported PSRs which specifically required the top-cladding material to be different from the bottom cladding in order to break the symmetry of the waveguide cross-section, our proposed PSR has no such limitation on the top-cladding due to the horizontal asymmetry of the rib waveguide. In addition, the device is highly compact and has a total length as short as 24 μm. Numerical simulation shows that a high conversion efficiency of ~97% is obtained at the wavelength of 1550 nm. With the width variation of ± 15 nm and the gap variation of ± 50 nm, the PSR still has high ER of 12 dB at the cross-port, showing large fabrication tolerance. This device can be cascaded to improve the performance at the through port and an example of a two-stage PSR is presented. The mode conversion between the strip waveguide and the rib waveguide is also discussed. |
| Starting Page | 1109 |
| Ending Page | 1117 |
| Page Count | 9 |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://docs.lib.purdue.edu/cgi/viewcontent.cgi?article=2561&context=nanopub |
| PubMed reference number | 24663737v1 |
| Alternate Webpage(s) | https://doi.org/10.1364/OE.22.004137 |
| DOI | 10.1364/oe.22.004137 |
| Journal | Optics express |
| Volume Number | 22 |
| Issue Number | 4 |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Bone structure of rib Coupler Device Component Silicon Waveguide Device Component wavelength width |
| Content Type | Text |
| Resource Type | Article |
