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Broadband silicon four-mode multi/demultiplexer designed by a wavefront matching method
| Title: | Broadband silicon four-mode multi/demultiplexer designed by a wavefront matching method |
| Authors: | Sawada, Yusuke Browse this author | | Fujisawa, Takeshi Browse this author →KAKEN DB | | Sato, Takanori Browse this author | | Saitoh, Kunimasa Browse this author →KAKEN DB |
| Issue Date: | 16-Aug-2021 |
| Publisher: | Optical Society of America |
| Journal Title: | Optics express |
| Volume: | 29 |
| Issue: | 17 |
| Start Page: | 27322 |
| End Page: | 27331 |
| Publisher DOI: | 10.1364/OE.434178 |
| Abstract: | We propose a broadband silicon four-mode multi/demultiplexer which consists of three asymmetric directional couplers, and the asymmetric directional couplers were designed by a wavefront matching method to operate as mode multi/demultiplexers for TE1, TE2, and TE3 modes, respectively. Simulated results show that the -0.5-dB bandwidths of normalized transmission of the couplers designed by a wavefront matching method are 112, 114, and 134 nm, respectively. Those for the conventional couplers are 80, 72, 65 nm, respectively. The superiority of asymmetric directional couplers designed by a wavefront matching method are experimentally demonstrated. In the additional investigation, ultrabroadband tapered asymmetric directional couplers are theoretically demonstrated. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement |
| Rights: | © 2021 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved. |
| Type: | article |
| URI: | http://hdl.handle.net/2115/82683 |
| Appears in Collections: | 情報科学院・情報科学研究院 (Graduate School of Information Science and Technology / Faculty of Information Science and Technology) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)
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