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Paper Abstract and Keywords
Presentation 2011-10-27 16:30
Investigation of Operation Conditions for a Passively mode-Locked VCSEL with a Concave Mirror
Hiroshi Takanashi, Tomoyuki Kato, Kohroh Kobayashi, Hiroyuki Uenohara (Tokyo Tech) Link to ES Tech. Rep. Archives: OPE2011-109 LQE2011-72
Abstract (in Japanese) (See Japanese page) 
(in English) A mode-locked VCSEL structure with double-path resonance configuration using an external concave mirror is a promising clock light source with repetition frequency above 10GHz for optical interconnection because of low threshold current, large tolerance for lateral misalignment of the mirror, and so on. However, few reports have been reported for a passively mode-locked VCSEL with such configuration so far. In this report, we fabricated the devices, and tested for several basic performances. The threshold current was almost constant regardless of large displacement of the mirror in the lateral direction of up to 50m. In addition, clear change of current versus light output characteristics was observed with changing bias voltage to the saturable absorber by doubling the absorber mesa size against the active region due to the improvement of the optical coupling efficiency of the cavity mode to the absorber. Moreover, the optimized conditions to maximize the RF intensity for injection current to the active region and the applied voltage to the saturable absorber were obtained. Under those conditions, RF peaks at frequencies of 5.29 and 11.94GHz were observed.
Keyword (in Japanese) (See Japanese page) 
(in English) VCSEL / passive mode-locking / double path resonance configuration / / / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 267, LQE2011-72, pp. 93-98, Oct. 2011.
Paper # LQE2011-72 
Date of Issue 2011-10-20 (OCS, OPE, LQE) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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. (No. 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)

Conference Information
Committee OCS LQE OPE  
Conference Date 2011-10-27 - 2011-10-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Kochi University of Technology 
Topics (in Japanese) (See Japanese page) 
Topics (in English) ultra high speed transmission, modulation,dispersion compensation, ultra-high speed optical signal processingm broadband optical amplification,WDM, receiver and emitter, high power light transmission, etc, (report of ECOC2011) 
Paper Information
Registration To LQE 
Conference Code 2011-10-OCS-LQE-OPE 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Investigation of Operation Conditions for a Passively mode-Locked VCSEL with a Concave Mirror 
Sub Title (in English)  
Keyword(1) VCSEL  
Keyword(2) passive mode-locking  
Keyword(3) double path resonance configuration  
1st Author's Name Hiroshi Takanashi  
1st Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
2nd Author's Name Tomoyuki Kato  
2nd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
3rd Author's Name Kohroh Kobayashi  
3rd Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
4th Author's Name Hiroyuki Uenohara  
4th Author's Affiliation Tokyo Institute of Technology (Tokyo Tech)
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Date Time 2011-10-27 16:30:00 
Presentation Time 25 
Registration for LQE 
Paper # IEICE-OCS2011-71,IEICE-OPE2011-109,IEICE-LQE2011-72 
Volume (vol) IEICE-111 
Number (no) no.265(OCS), no.266(OPE), no.267(LQE) 
Page pp.93-98 
#Pages IEICE-6 
Date of Issue IEICE-OCS-2011-10-20,IEICE-OPE-2011-10-20,IEICE-LQE-2011-10-20 

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