| Presentation | 2017-12-07 [Poster Presentation] High extinction ratio of polarization splitter based on directional coupler Hiroya Mitsuno, Takeo Maruyama, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | High refractive index difference of silicon waveguide enables high-density integration, but due to strong polarization dependence, it becomes a factor which makes the design complicated. As a solution of this problem, we proposed a design of waveguide type polarization splitter based on directional coupler which is advantageous in terms of size. In the past, there is a report of 10 dB extinction ratio in 1550 nm wavelength band, but this time we propose a structure with over 20 dB extinction ratio in 1550 nm wavelength band. It was confirmed by FDTD analysis that it can be realized by setting the combination of coupling length to 1: 2. Furthermore, we fabricated devises using foundry service and report results of measured polarization characteristics. From the result of the measurement, it was confirmed that this device was operating and an extinction ratio of 20 dB or more was obtained. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | polarization splitter / directional coupler / silicon photonics / silicon waveguide / extinction ratio |
| Paper # | OPE2017-100 |
| Date of Issue | 2017-11-30 (OPE) |
| Conference Information | |
| Committee | OPE |
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| Conference Date | 2017/12/7(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Kazutoshi Kato(Kyushu Univ.) |
| Vice Chair | Kouki Sato(Furukawa Electric Industries) |
| Secretary | Kouki Sato(NTT) |
| Assistant | Takuo Tanemura(Univ. of Tokyo) / Naokatsu Yamamoto(NICT) |
| Paper Information | |
| Registration To | Technical Committee on OptoElectronics |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] High extinction ratio of polarization splitter based on directional coupler |
| Sub Title (in English) | |
| Keyword(1) | polarization splitter |
| Keyword(2) | directional coupler |
| Keyword(3) | silicon photonics |
| Keyword(4) | silicon waveguide |
| Keyword(5) | extinction ratio |
| 1st Author's Name | Hiroya Mitsuno |
| 1st Author's Affiliation | Kanazawa University(Kanazawa Univ.) |
| 2nd Author's Name | Takeo Maruyama |
| 2nd Author's Affiliation | Kanazawa University(Kanazawa Univ.) |
| Date | 2017-12-07 |
| Paper # | OPE2017-100 |
| Volume (vol) | vol.117 |
| Number (no) | OPE-339 |
| Page | pp.pp.59-62(OPE), |
| #Pages | 4 |
| Date of Issue | 2017-11-30 (OPE) |