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Paper Abstract and Keywords
Presentation 2013-12-13 10:50
Power Consumption Analysis of Semiconductor Membrane Lasers for On-Chip Optical Interconnection
Takuo Hiratani, Kyohei Doi, Yuki Atsuji, Tomohiro Amemiya, Nobuhiko Nishiyama, Shigehisa Arai (Tokyo Inst. of Tech.) LQE2013-128
Abstract (in Japanese) (See Japanese page) 
(in English) Recently, resistor-capacitor (RC) delay and heating in electrical wiring caused by miniaturization of elements in large scale integrated (LSI) circuits have become non-negligible, optical interconnection is expected as one of candidates to solve these problems. We have proposed a semiconductor membrane laser as a light source for on-chip optical interconnection. Since the semiconductor membrane laser consists of thin semiconductor core layer sandwiched between very low refractive-index cladding layers, an extremely low threshold current operation by strong optical confinement is expected. In this paper, we analyzed power consumption of semiconductor membrane distributed-reflector (DR) laser which can realize high efficiency and low power consumption operation. As a result, it was found that power consumption by Joule heating becomes dominant due to high device resistance when the cavity length becomes shorter, and the optimal cavity length which gives the minimum power consumption exists if we assume required conditions (i.e. output power and direct modulation speed) for a light source. In the case of adopting low resistivity of 0.035 $Omega$$cdot$cm ($N_A$ = 4 $times$ $10^{18}$ $cm^{-3}$), the minimum energy cost was estimated to be 37 fJ/bit at the cavity length of 17 $mu$m. Toward further reduction of the energy cost, reductions of waveguide loss and coupling loss between each device will be effective.
Keyword (in Japanese) (See Japanese page) 
(in English) Semiconductor laser / Distributed-reflector laser / Surface grating / Strong optical confinement / / / /  
Reference Info. IEICE Tech. Rep., vol. 113, no. 352, LQE2013-128, pp. 15-20, Dec. 2013.
Paper # LQE2013-128 
Date of Issue 2013-12-06 (LQE) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
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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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Conference Information
Committee LQE  
Conference Date 2013-12-13 - 2013-12-13 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To LQE 
Conference Code 2013-12-LQE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Power Consumption Analysis of Semiconductor Membrane Lasers for On-Chip Optical Interconnection 
Sub Title (in English)  
Keyword(1) Semiconductor laser  
Keyword(2) Distributed-reflector laser  
Keyword(3) Surface grating  
Keyword(4) Strong optical confinement  
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1st Author's Name Takuo Hiratani  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
2nd Author's Name Kyohei Doi  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
3rd Author's Name Yuki Atsuji  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
4th Author's Name Tomohiro Amemiya  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
5th Author's Name Nobuhiko Nishiyama  
5th Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
6th Author's Name Shigehisa Arai  
6th Author's Affiliation Tokyo Institute of Technology (Tokyo Inst. of Tech.)
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Speaker Author-1 
Date Time 2013-12-13 10:50:00 
Presentation Time 25 minutes 
Registration for LQE 
Paper # LQE2013-128 
Volume (vol) vol.113 
Number (no) no.352 
Page pp.15-20 
#Pages 6 
Date of Issue 2013-12-06 (LQE) 

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