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| Presentation | 2020-11-20 15:30 Evaluation of the Optical-axis Rotation Angle of Waveguide Polarization Converter with Asymmetric Cross-section Kotake Shota, Junji Yamauchi, Hisamatsu Hisamatsu (Hosei Univ.)  OPE2020-63 LQE2020-43 Link to ES Tech. Rep. Archives: OPE2020-63 LQE2020-43 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | We propose an accurate technique for evaluating the optical-axis rotation angle of a waveguide-type polarization converter with an asymmetric cross-section. The evaluation is based on the Poynting vector, rather than the previous techniques in which only the electric or magnetic field is used. High accuracy is found using a model of the converter situated on a silica substrate. Further consideration is given to a completely buried converter. Since this model has a symmetry with respect to the 45$^circ$ plane, the optical-axis rotation angle retains 45$^circ$, even when the wavelength is varied. We, therefore, introduce the effect of excitation efficiency between the input eigenmode and the two generated supermodes. The wavelength response of the extinction ratio is improved, confirming a good correlation with the FDTD results. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Si-wire waveguide / polarization converter / optical-axis rotation angle / imaginary-distance beam-propagation method / finite-difference time-domain method / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 243, OPE2020-63, pp. 92-95, Nov. 2020. | |
| Paper # | OPE2020-63 | |
| Date of Issue | 2020-11-13 (OPE, LQE) | |
| ISSN | Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | OPE2020-63 LQE2020-43 Link to ES Tech. Rep. Archives: OPE2020-63 LQE2020-43 |
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| Conference Information | |
| Committee | OPE LQE |
| Conference Date | 2020-11-20 - 2020-11-20 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Online |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | OPE |
| Conference Code | 2020-11-OPE-LQE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Evaluation of the Optical-axis Rotation Angle of Waveguide Polarization Converter with Asymmetric Cross-section |
| Sub Title (in English) | |
| Keyword(1) | Si-wire waveguide |
| Keyword(2) | polarization converter |
| Keyword(3) | optical-axis rotation angle |
| Keyword(4) | imaginary-distance beam-propagation method |
| Keyword(5) | finite-difference time-domain method |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Kotake Shota |
| 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 Hisamatsu |
| 3rd Author's Affiliation | Hosei University (Hosei Univ.) |
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| Speaker | Author-1 |
| Date Time | 2020-11-20 15:30:00 |
| Presentation Time | 120 minutes |
| Registration for | OPE |
| Paper # | OPE2020-63, LQE2020-43 |
| Volume (vol) | vol.120 |
| Number (no) | no.243(OPE), no.244(LQE) |
| Page | pp.92-95 |
| #Pages | 4 |
| Date of Issue | 2020-11-13 (OPE, LQE) |
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