Paper Abstract and Keywords |
Presentation |
2012-08-24 14:00
Silicon-germanium/silicon nano-wire waveguide for energy-saving optical switch and variable optical attenuator Shigeaki Sekiguchi, Lei Zhu, Teruo Kurahashi, Kenichi Kawaguchi, Ken Morito (Fujitsu Labs.) R2012-45 EMD2012-51 CPM2012-76 OPE2012-83 LQE2012-49 Link to ES Tech. Rep. Archives: EMD2012-51 CPM2012-76 OPE2012-83 LQE2012-49 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
For active optical waveguide devices on silicon (Si)-platform, highly
efficient carrier accumulation in the waveguide region is the key to
realize energy-saving and compact devices.
We proposed a silicon-germanium (SiGe) / silicon (Si) waveguide
structure to achieve such a purpose. In the proposed
structure, a type-I hetero-interface formed by SiGe and Si is expected
to confine carriers effectively in the narrow-gap SiGe waveguide core.
In this report, first we will investigate carrier accumulation effect of
the structure by numerical simulation. And we will demonstrate
low-power operation of a small-size optical
switch and a variable optical attenuator (VOA) we fabricated.
The fabricated Mach-Zehnder optical switch shows a low switching power
of only 1.53\,mW with a compact phase shifter length of
250\,$\mu$m. The switching time of the optical switch is less than 4.6\,ns.
The fabricated VOA shows a 30--50\% low-current operation compared to
conventional Si waveguide VOA of the same device length.
These results show that our proposed SiGe/Si
waveguide structure holds promise for active devices with compact size
and low operation power. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
silicon-photonics / silicon-germanium / heterostructure / carrier plasma / optical switch / variable optical attenuator / / |
Reference Info. |
IEICE Tech. Rep., vol. 112, no. 184, LQE2012-49, pp. 115-120, Aug. 2012. |
Paper # |
LQE2012-49 |
Date of Issue |
2012-08-16 (R, EMD, CPM, OPE, 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) |
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R2012-45 EMD2012-51 CPM2012-76 OPE2012-83 LQE2012-49 Link to ES Tech. Rep. Archives: EMD2012-51 CPM2012-76 OPE2012-83 LQE2012-49 |
Conference Information |
Committee |
LQE CPM EMD OPE R |
Conference Date |
2012-08-23 - 2012-08-24 |
Place (in Japanese) |
(See Japanese page) |
Place (in English) |
Tohoku Univ. |
Topics (in Japanese) |
(See Japanese page) |
Topics (in English) |
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Paper Information |
Registration To |
LQE |
Conference Code |
2012-08-LQE-CPM-EMD-OPE-R |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Silicon-germanium/silicon nano-wire waveguide for energy-saving optical switch and variable optical attenuator |
Sub Title (in English) |
|
Keyword(1) |
silicon-photonics |
Keyword(2) |
silicon-germanium |
Keyword(3) |
heterostructure |
Keyword(4) |
carrier plasma |
Keyword(5) |
optical switch |
Keyword(6) |
variable optical attenuator |
Keyword(7) |
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Keyword(8) |
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1st Author's Name |
Shigeaki Sekiguchi |
1st Author's Affiliation |
Fujitsu Laboratories (Fujitsu Labs.) |
2nd Author's Name |
Lei Zhu |
2nd Author's Affiliation |
Fujitsu Laboratories (Fujitsu Labs.) |
3rd Author's Name |
Teruo Kurahashi |
3rd Author's Affiliation |
Fujitsu Laboratories (Fujitsu Labs.) |
4th Author's Name |
Kenichi Kawaguchi |
4th Author's Affiliation |
Fujitsu Laboratories (Fujitsu Labs.) |
5th Author's Name |
Ken Morito |
5th Author's Affiliation |
Fujitsu Laboratories (Fujitsu Labs.) |
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Speaker |
Author-1 |
Date Time |
2012-08-24 14:00:00 |
Presentation Time |
25 minutes |
Registration for |
LQE |
Paper # |
R2012-45, EMD2012-51, CPM2012-76, OPE2012-83, LQE2012-49 |
Volume (vol) |
vol.112 |
Number (no) |
no.180(R), no.181(EMD), no.182(CPM), no.183(OPE), no.184(LQE) |
Page |
pp.115-120 |
#Pages |
6 |
Date of Issue |
2012-08-16 (R, EMD, CPM, OPE, LQE) |
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