| Presentation | 2020-01-31 Design of a spot-size converter using a rectangular core Keigo Shimada, 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 a spot-size converter (SSC) using a rectangular Si-core improves the spot size conversion for both TE and TM modes, even for a horizontally tapered core. We first investigate a configuration with a square Si-core together with a linear taper in the horizontal direction. This, however, results in unbalanced conversion between the TE and TM modes. Special attention is paid to the guideline determined by equating the local taper length to the beat length between the guided and radiation modes. It is found that the power for the TM mode is improved by introducing a rectangular Si-core because the guidelines for the TE and TM modes become closer to each other. Finally, we consider an SSC when the core width is increased. The SSC using the rectangular core with a curvilinear taper achieves nearly the same characteristics as the structure with a narrow core width. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Spot-size converter / Beam-propagation method / Curvilinear taper |
| Paper # | EST2019-100 |
| Date of Issue | 2020-01-23 (EST) |
| Conference Information | |
| Committee | EST |
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| Conference Date | 2020/1/30(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Beppu International Convention Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Simulation Technique, etc. |
| Chair | Akimasa Hirata(Nagoya Inst. of Tech.) |
| Vice Chair | Shinichiro Ohnuki(Nihon Univ.) / Masayuki Kimishima(Advantest) / Jun Shibayama(Hosei Univ.) |
| Secretary | Shinichiro Ohnuki(National Inst. of Tech.,Sendai College) / Masayuki Kimishima(Aoyama Gakuin Univ.) / Jun Shibayama |
| Assistant | Takahiro Ito(Nagoya Inst. of Tech.) / Kazuhiro Fujita(Fujitsu) |
| Paper Information | |
| Registration To | Technical Committee on Electronics Simulation Technology |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Design of a spot-size converter using a rectangular core |
| Sub Title (in English) | |
| Keyword(1) | Spot-size converter |
| Keyword(2) | Beam-propagation method |
| Keyword(3) | Curvilinear taper |
| 1st Author's Name | Keigo Shimada |
| 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 | 2020-01-31 |
| Paper # | EST2019-100 |
| Volume (vol) | vol.119 |
| Number (no) | EST-407 |
| Page | pp.pp.109-114(EST), |
| #Pages | 6 |
| Date of Issue | 2020-01-23 (EST) |