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| Presentation | 2022-10-20 15:45 Theoretical and Experimental Investigation of Frequency Chirp Induced by Inter-Arm Imbalance in Mach-Zehnder Silicon Optical Modulators Tadashi Murao, Jun Ushida, Hiroyuki Takahashi, Masatoshi Tokushima, Akemi Shiina, Tsuyoshi Horikawa (PETRA)  OCS2022-22 OPE2022-68 LQE2022-31 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Characteristic variations caused by nonuniformities in the fabrication process are inevitable in carrier-depletion Mach–Zehnder (MZ) silicon optical modulators. However, it is unknown how inter-arm imbalance in phase shifters that have a voltage dependence impacts device performance with respect to the chirp parameter in a push-pull manner. First, a generalized form of the large-signal modulation efficiency is used to characterize the inter-arm imbalance. We also propose an evaluation methodology that enables us to measure the absorption losses in each arm separately. A generalized form of the chirp parameter is formulated and quantified by using the proposed ME and evaluation methodology of the absorption loss, which suitably distinguishes its sources between the nonlinearities in modulation efficiency and absorption loss and their inter-arm imbalance. The impact of inter-arm imbalance on the chirp parameter is evaluated on a 300-mm SOI wafer. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Wafer-level testing / Silicon modulator / Modulation efficiency / Optical modulation amplitude / chirp / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 217, OPE2022-68, pp. 28-33, Oct. 2022. | |
| Paper # | OPE2022-68 | |
| Date of Issue | 2022-10-13 (OCS, 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 | OCS2022-22 OPE2022-68 LQE2022-31 |
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| Conference Information | |
| Committee | OPE OCS LQE |
| Conference Date | 2022-10-20 - 2022-10-21 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | OPE |
| Conference Code | 2022-10-OPE-OCS-LQE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Theoretical and Experimental Investigation of Frequency Chirp Induced by Inter-Arm Imbalance in Mach-Zehnder Silicon Optical Modulators |
| Sub Title (in English) | |
| Keyword(1) | Wafer-level testing |
| Keyword(2) | Silicon modulator |
| Keyword(3) | Modulation efficiency |
| Keyword(4) | Optical modulation amplitude |
| Keyword(5) | chirp |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Tadashi Murao |
| 1st Author's Affiliation | Photonics Electronics Technology Research Association (PETRA) |
| 2nd Author's Name | Jun Ushida |
| 2nd Author's Affiliation | Photonics Electronics Technology Research Association (PETRA) |
| 3rd Author's Name | Hiroyuki Takahashi |
| 3rd Author's Affiliation | Photonics Electronics Technology Research Association (PETRA) |
| 4th Author's Name | Masatoshi Tokushima |
| 4th Author's Affiliation | Photonics Electronics Technology Research Association (PETRA) |
| 5th Author's Name | Akemi Shiina |
| 5th Author's Affiliation | Photonics Electronics Technology Research Association (PETRA) |
| 6th Author's Name | Tsuyoshi Horikawa |
| 6th Author's Affiliation | Photonics Electronics Technology Research Association (PETRA) |
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| Speaker | Author-1 |
| Date Time | 2022-10-20 15:45:00 |
| Presentation Time | 25 minutes |
| Registration for | OPE |
| Paper # | OCS2022-22, OPE2022-68, LQE2022-31 |
| Volume (vol) | vol.122 |
| Number (no) | no.216(OCS), no.217(OPE), no.218(LQE) |
| Page | pp.28-33 |
| #Pages | 6 |
| Date of Issue | 2022-10-13 (OCS, OPE, LQE) |
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