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| Presentation | 2019-01-17 11:15 High-Power, High-Beam-Quality Double-Lattice Photonic-Crystal Lasers Masahiro Yoshida, Menaka De Zoysa, Kenji Ishizaki, Yoshinori Tanaka (Kyoto Univ.), Masato Kawasaki (Kyoto Univ./Mitsubishi Electric), Ranko Hatsuda (Kyoto Univ.), Bongshik Song (Kyoto Univ./Sungkyunkwan Univ.), Susumu Noda (Kyoto Univ.)  PN2018-34 EMT2018-68 OPE2018-143 LQE2018-153 EST2018-81 MWP2018-52 Link to ES Tech. Rep. Archives: EMT2018-68 OPE2018-143 LQE2018-153 EST2018-81 MWP2018-52 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Achieving high-power and high-beam-quality (i.e. high-brightness) semiconductor lasers is important for laser processing and various sensing for next generation smart production and mobility. However, it is challenging for conventional semiconductor lasers to operate in high power while maintaining high beam quality. This is because increasing the output power necessitates expanding the lasing area, which leads to multimode oscillation and consequently compromises the beam quality. Here, we develop a double-lattice photonic-crystal resonator, where two photonic lattice groups separated by one-quarter wavelength in the x and y directions are superimposed. The double-lattice resonator enables high-power and high-beam-quality operation by strongly suppressing the multimode operation even when the lasing area is expanded. Using this resonator, we achieve 10 W high-power, high-beam-quality operation under room-temperature, pulsed conditions. In addition, an output power up to ~7 W is obtained under continuous-wave (CW) conditions. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Semiconductor lasers / Photonic crystals / Photonic crystal lasers / / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 118, no. 399, LQE2018-153, pp. 19-22, Jan. 2019. | |
| Paper # | LQE2018-153 | |
| Date of Issue | 2019-01-10 (PN, EMT, OPE, LQE, EST, MWP) | |
| ISSN | Print edition: ISSN 0913-5685 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 | PN2018-34 EMT2018-68 OPE2018-143 LQE2018-153 EST2018-81 MWP2018-52 Link to ES Tech. Rep. Archives: EMT2018-68 OPE2018-143 LQE2018-153 EST2018-81 MWP2018-52 |
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| Conference Information | |
| Committee | PN EMT OPE EST MWP LQE IEE-EMT |
| Conference Date | 2019-01-17 - 2019-01-18 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Osaka University Nakanoshima Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | LQE |
| Conference Code | 2019-01-PN-EMT-OPE-EST-MWP-LQE-EMT |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | High-Power, High-Beam-Quality Double-Lattice Photonic-Crystal Lasers |
| Sub Title (in English) | |
| Keyword(1) | Semiconductor lasers |
| Keyword(2) | Photonic crystals |
| Keyword(3) | Photonic crystal lasers |
| Keyword(4) | |
| Keyword(5) | |
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| 1st Author's Name | Masahiro Yoshida |
| 1st Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 2nd Author's Name | Menaka De Zoysa |
| 2nd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 3rd Author's Name | Kenji Ishizaki |
| 3rd Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 4th Author's Name | Yoshinori Tanaka |
| 4th Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 5th Author's Name | Masato Kawasaki |
| 5th Author's Affiliation | Kyoto University/Advanced Technology R&D Center, Mitsubishi Electric Corporation (Kyoto Univ./Mitsubishi Electric) |
| 6th Author's Name | Ranko Hatsuda |
| 6th Author's Affiliation | Kyoto University (Kyoto Univ.) |
| 7th Author's Name | Bongshik Song |
| 7th Author's Affiliation | Kyoto University/Sungkyunkwan University (Kyoto Univ./Sungkyunkwan Univ.) |
| 8th Author's Name | Susumu Noda |
| 8th Author's Affiliation | Kyoto University (Kyoto Univ.) |
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| Speaker | Author-1 |
| Date Time | 2019-01-17 11:15:00 |
| Presentation Time | 25 minutes |
| Registration for | LQE |
| Paper # | PN2018-34, EMT2018-68, OPE2018-143, LQE2018-153, EST2018-81, MWP2018-52 |
| Volume (vol) | vol.118 |
| Number (no) | no.396(PN), no.397(EMT), no.398(OPE), no.399(LQE), no.400(EST), no.401(MWP) |
| Page | pp.19-22 |
| #Pages | 4 |
| Date of Issue | 2019-01-10 (PN, EMT, OPE, LQE, EST, MWP) |
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