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| Presentation | 2008-12-12 16:25 Microdisk Quantum Cascade Laser with an Integrated Optical Waveguide Yuki Wakayama (INOIE, Univ. of Tokyo), Satoshi Iwamoto, Yasuhiko Arakawa (RCAST, Univ. of Tokyo)  LQE2008-141 Link to ES Tech. Rep. Archives: LQE2008-141 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | Semiconductor lasers with small optical volume are much attractive because they enable low energy consumption, easy monolithic integration of the lasers with other components, and control of spontaneous emission. We aim at the functionalization of intersubband emitting devices by utilizing microcavity structure. In this paper, we present a fabrication and an evaluation of GaAs based mid-infrared quantum cascade laser with an integrated lateral waveguide for applications to on-chip sensing system using mid-infrared light. Several devices which have different spacing between a microdisk cavity and a waveguide have been prepared. As the spacing is narrower than 4m, the threshold currents of the microdisk lasers are increased considerably. Moreover, as the current injected into the waveguide region is increased in the 2m-spacing device, threshold current of the microdisk laser is decreased. These results are strong evidence for the coupling between the whispering gallery mode of the microdisk and the waveguide mode. | |
| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | quantum cascade lasers / microdisk / optical waveguide / optical circuit / / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 108, no. 351, LQE2008-141, pp. 69-72, Dec. 2008. | |
| Paper # | LQE2008-141 | |
| Date of Issue | 2008-12-05 (LQE) | |
| 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 | LQE2008-141 Link to ES Tech. Rep. Archives: LQE2008-141 |
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| Conference Information | |
| Committee | LQE |
| Conference Date | 2008-12-12 - 2008-12-12 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Kikai-Shinko-Kaikan Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Paper Information | |
| Registration To | LQE |
| Conference Code | 2008-12-LQE |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Microdisk Quantum Cascade Laser with an Integrated Optical Waveguide |
| Sub Title (in English) | |
| Keyword(1) | quantum cascade lasers |
| Keyword(2) | microdisk |
| Keyword(3) | optical waveguide |
| Keyword(4) | optical circuit |
| Keyword(5) | |
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| 1st Author's Name | Yuki Wakayama |
| 1st Author's Affiliation | Institute for Nano Quantum Information Electronics, The University of Tokyo (INOIE, Univ. of Tokyo) |
| 2nd Author's Name | Satoshi Iwamoto |
| 2nd Author's Affiliation | Research Center for Advanced Science and Technology, The University of Tokyo (RCAST, Univ. of Tokyo) |
| 3rd Author's Name | Yasuhiko Arakawa |
| 3rd Author's Affiliation | Research Center for Advanced Science and Technology, The University of Tokyo (RCAST, Univ. of Tokyo) |
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| Speaker | Author-1 |
| Date Time | 2008-12-12 16:25:00 |
| Presentation Time | 25 minutes |
| Registration for | LQE |
| Paper # | LQE2008-141 |
| Volume (vol) | vol.108 |
| Number (no) | no.351 |
| Page | pp.69-72 |
| #Pages | 4 |
| Date of Issue | 2008-12-05 (LQE) |
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