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| Presentation | 2022-10-21 15:10 Fundamental Study of Vertical Diffraction Grating for Application to Active MMI Laser Keiichirou Kozu, Xiao He, Yudai kawano, Haisong Jiang, Kiichi Hamamoto (Kyushu Univ.)  OCS2022-37 OPE2022-83 LQE2022-46 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Active MMI (multi-mode interferometer) lasers are capable of exhibiting photon-photon resonance and are being investigated as future ultrafast direct modulation lasers. In particular, if a plurality of resonance peaks can be expressed, it may be possible to achieve modulation characteristics up to a higher frequency range than before. However, in the active MMI lasers that have been studied so far, the oscillation wavelength control that determines the PPR peak position is not stable, and there is a problem in stabilizing it. In this study, we investigated adding a wavelength stabilization mechanism by introducing a vertical diffraction grating into a part of the waveguide structure of an active MMI laser. Considering the frequency response over 100 GHz, we investigated a structure in which the grating region length is about 100 µm and the grating is provided on the side wall of the high mesa waveguide. As a result, it was found that a sharp reflection spectrum was obtained with an etching depth of 1.1 µm or more, and the desired oscillation wavelength control was obtained. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Vertical grating / Active-MMI laser diode / Oscillation wavelength control / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 122, no. 217, OPE2022-83, pp. 104-109, Oct. 2022. | |
| Paper # | OPE2022-83 | |
| 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 | OCS2022-37 OPE2022-83 LQE2022-46 |
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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) | Fundamental Study of Vertical Diffraction Grating for Application to Active MMI Laser |
| Sub Title (in English) | |
| Keyword(1) | Vertical grating |
| Keyword(2) | Active-MMI laser diode |
| Keyword(3) | Oscillation wavelength control |
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| 1st Author's Name | Keiichirou Kozu |
| 1st Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 2nd Author's Name | Xiao He |
| 2nd Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 3rd Author's Name | Yudai kawano |
| 3rd Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 4th Author's Name | Haisong Jiang |
| 4th Author's Affiliation | Kyushu University (Kyushu Univ.) |
| 5th Author's Name | Kiichi Hamamoto |
| 5th Author's Affiliation | Kyushu University (Kyushu Univ.) |
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| Speaker | Author-1 |
| Date Time | 2022-10-21 15:10:00 |
| Presentation Time | 25 minutes |
| Registration for | OPE |
| Paper # | OCS2022-37, OPE2022-83, LQE2022-46 |
| Volume (vol) | vol.122 |
| Number (no) | no.216(OCS), no.217(OPE), no.218(LQE) |
| Page | pp.104-109 |
| #Pages | 6 |
| Date of Issue | 2022-10-13 (OCS, OPE, LQE) |
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