| Presentation | 2018-01-25 ADI-BPM Analysis of a Spot-Size Converter Using a Curvilinearly Tapered Waveguide Hiroyoshi Hino, Junji Yamauchi, Hisamatsu Nakano, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper clarifies that the length of a spot-size converter (SSC) is sufficiently reduced by introducing a curvlinearly tapered structure. The analysis is carried out using the beam-propagation method (BPM) based on the alternating direction implicit (ADI) scheme. We first investigate the calculation direction of the first step in the ADI procedure in terms of power conservation. It is demonstrated that the first step should be calculated from the direction in which the refractive index remains unchanged along the propagation direction. Next, the SSC is optimized to achieve nearly the same characteristics as the original structure with a linear taper being employed. Special attention is paid to the local taper angle between the waveguide axis and the tangent to the core-cladding interface, since the taper angle is closely related to radiation. It is found that the present curvlinearly tapered profile is consistent with the guideline determined by equating the local taper length to the beat length between the guided and radiation modes. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spot-size converter / Alternating direction implicit scheme / Curvilinear taper / Beam-propagation method |
| Paper # | PN2017-42,EMT2017-79,OPE2017-120,LQE2017-102,EST2017-78,MWP2017-55 |
| Date of Issue | 2018-01-18 (PN, EMT, OPE, LQE, EST, MWP) |
| Conference Information | |
| Committee | EMT / EST / LQE / MWP / OPE / PN / IEE-EMT |
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| Conference Date | 2018/1/25(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Akira Hirose(Univ. of Tokyo) / Hideaki Kimura(NTT) / Tsuyoshi Yamamoto(Fujitsu Labs.) / Tetsuya Kawanishi(Waseda Univ.) / Kazutoshi Kato(Kyushu Univ.) / Hiroshi Hasegawa(Nagoya Univ.) / 後藤 啓次(防衛大) |
| Vice Chair | Koichi Hirayama(Kitami Inst. of Tech.) / Akimasa Hirata(Nagoya Inst. of Tech.) / Shinichiro Ohnuki(Nihon Univ.) / Kiichi Hamamoto(Kyusyu Univ.) / Naoto Yoshimoto(Chitose Inst. of Science and Tech.) / Kouki Sato(Furukawa Electric Industries) / Haruki Ogoshi(Furukawa Electric) / Takehiro Tsuritani(KDDI Research) / Hideaki Furukawa(NICT) |
| Secretary | Koichi Hirayama(Univ. of Hyogo) / Akimasa Hirata(Tokyo Metro. Coll. of Tech) / Shinichiro Ohnuki(Tohoku Univ.) / Kiichi Hamamoto(CIST) / Naoto Yoshimoto(Tohoku Univ.) / Kouki Sato(SEI) / Haruki Ogoshi(NICT) / Takehiro Tsuritani(Chiba Inst. of Tech.) / Hideaki Furukawa(NTT) / (Kanagawa Inst. of Tech.) |
| Assistant | Tsuyoshi Matsuoka(Kyushu Sangyo Univ.) / Takahiro Ito(Nagoya Inst. of Tech.) / Kazuhiro Fujita(Fujitsu) / Yasumasa Kawakita(Furukawa Electric Industries) / Naoki Fujiwara(NTT) / Kosuke Nishimura(KDDI) / Kensuke Ikeda(CRIEPI) / Takuo Tanemura(Univ. of Tokyo) / Naokatsu Yamamoto(NICT) / Masahiro Nakagawa(NTT) / Keijiro Suzuki(AIST) / 中 良弘(九州保健福祉大学) |
| Paper Information | |
| Registration To | Technical Committee on Electromagnetic Theory / Technical Committee on Electronics Simulation Technology / Technical Committee on Lasers and Quantum Electronics / Technical Committee on Microwave and Millimeter-wave Photonics / Technical Committee on OptoElectronics / Technical Committee on Photonic Network / Technical Meeting on Electromagnetic Theory |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | ADI-BPM Analysis of a Spot-Size Converter Using a Curvilinearly Tapered Waveguide |
| Sub Title (in English) | |
| Keyword(1) | Spot-size converter |
| Keyword(2) | Alternating direction implicit scheme |
| Keyword(3) | Curvilinear taper |
| Keyword(4) | Beam-propagation method |
| 1st Author's Name | Hiroyoshi Hino |
| 1st Author's Affiliation | Hosei University(Hosei Univ.) |
| 2nd Author's Name | Junji Yamauchi |
| 2nd Author's Affiliation | Hosei University(Hosei Univ.) |
| 3rd Author's Name | Hisamatsu Nakano |
| 3rd Author's Affiliation | Hosei University(Hosei Univ.) |
| Date | 2018-01-25 |
| Paper # | PN2017-42,EMT2017-79,OPE2017-120,LQE2017-102,EST2017-78,MWP2017-55 |
| Volume (vol) | vol.117 |
| Number (no) | PN-404,EMT-405,OPE-406,LQE-407,EST-408,MWP-409 |
| Page | pp.pp.21-26(PN), pp.21-26(EMT), pp.21-26(OPE), pp.21-26(LQE), pp.21-26(EST), pp.21-26(MWP), |
| #Pages | 6 |
| Date of Issue | 2018-01-18 (PN, EMT, OPE, LQE, EST, MWP) |