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| Presentation | 2020-11-20 15:30 Increasing the Extinction Ratio of Si Optical Modulators Hiroki Kojima (Waseda Univ.), Jun-ichi Hujikata (NEC), Tomohiro Kita (Waseda Univ.)  OPE2020-70 LQE2020-50 Link to ES Tech. Rep. Archives: OPE2020-70 LQE2020-50 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | In recent years, digital coherent optical transmission systems have been put to practical use, and Si modulators with a high extinction ratio are required for coherent system. In this study, we have study to reduce the extinction ratio and have developed a Si modulator with a high extinction ratio of more than 25 dB. The factors limiting the extinction ratio are the intensity absorption due to the carrier plasma effect and the inclusion of TM polarization components. A high extinction ratio of more than 40 dB was successfully achieved by introducing a thermo-optical MZI optical switch to compensate power imbalance due to carrier plasma effect and a polarizer. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Silicon photonics / Optical modulators / High extinction ratio / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 120, no. 243, OPE2020-70, pp. 125-128, Nov. 2020. | |
| Paper # | OPE2020-70 | |
| 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 | OPE2020-70 LQE2020-50 Link to ES Tech. Rep. Archives: OPE2020-70 LQE2020-50 |
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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) | Increasing the Extinction Ratio of Si Optical Modulators |
| Sub Title (in English) | |
| Keyword(1) | Silicon photonics |
| Keyword(2) | Optical modulators |
| Keyword(3) | High extinction ratio |
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| 1st Author's Name | Hiroki Kojima |
| 1st Author's Affiliation | Waseda University (Waseda Univ.) |
| 2nd Author's Name | Jun-ichi Hujikata |
| 2nd Author's Affiliation | NEC (NEC) |
| 3rd Author's Name | Tomohiro Kita |
| 3rd Author's Affiliation | Waseda University (Waseda Univ.) |
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| Speaker | Author-1 |
| Date Time | 2020-11-20 15:30:00 |
| Presentation Time | 120 minutes |
| Registration for | OPE |
| Paper # | OPE2020-70, LQE2020-50 |
| Volume (vol) | vol.120 |
| Number (no) | no.243(OPE), no.244(LQE) |
| Page | pp.125-128 |
| #Pages | 4 |
| Date of Issue | 2020-11-13 (OPE, LQE) |
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