| Presentation | 2017-12-07 [Poster Presentation] Design and fabrication of polarization-independent optical isolator with a-Si waveguide Yuki Hirabayashi, Yuya Shoji, Nobuhiko Nishiyama, Shigehisa Arai, Tetsuya Mizumoto, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | A nonreciprocal phase shift (NPS) is useful for realizing a waveguide magneto-optical isolator. It is difficult to grow a single-crystalline magneto-optical garnet on a Si substrate owing to the difference in lattice constants. Thus, we have fabricated waveguide magneto-optical isolators using a magneto-optical garnet $CeY_2$$Fe_5$$O_12$ (Ce:YIG) on Si waveguides by a directly bonding method. However, with this structure, a NPS was provided only for the TM modes in vertically asymmetric waveguides fabricated. The NPS affected for both TE and TM modes, simultaneously, has not been realized yet. In this paper, we propose an optical isolator fabricated with an amorphous silicon waveguide on a single-crystalline Ce:YIG. We discuss the design of a novel waveguide structure which provides an equal NPS for both TE and TM modes to realize a polarization-independent optical isolator. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Optical isolator / a-Si waveguide / Polarization independence / Nonreciprocal phase shift |
| Paper # | OPE2017-102 |
| 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] Design and fabrication of polarization-independent optical isolator with a-Si waveguide |
| Sub Title (in English) | |
| Keyword(1) | Optical isolator |
| Keyword(2) | a-Si waveguide |
| Keyword(3) | Polarization independence |
| Keyword(4) | Nonreciprocal phase shift |
| 1st Author's Name | Yuki Hirabayashi |
| 1st Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 2nd Author's Name | Yuya Shoji |
| 2nd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 3rd Author's Name | Nobuhiko Nishiyama |
| 3rd Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 4th Author's Name | Shigehisa Arai |
| 4th Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| 5th Author's Name | Tetsuya Mizumoto |
| 5th Author's Affiliation | Tokyo Institute of Technology(Tokyo Tech) |
| Date | 2017-12-07 |
| Paper # | OPE2017-102 |
| Volume (vol) | vol.117 |
| Number (no) | OPE-339 |
| Page | pp.pp.69-74(OPE), |
| #Pages | 6 |
| Date of Issue | 2017-11-30 (OPE) |