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Paper Abstract and Keywords
Presentation 2016-10-28 09:40
Driving circuit for 32X32 Optical Matrix Switch using High-resolution Pulse-width Modulation
Hiroyuki Matsuura, Satoshi Suda, Ken Tanizawa, Keijiro Suzuki, kazuhiro Ikeda, Hitoshi Kawashima, Shu Namiki (AIST) OCS2016-46 OPE2016-87 LQE2016-62
Abstract (in Japanese) (See Japanese page) 
(in English) A silicon photonic 32X32 strictly non-blocking matrix switch utilizing Mach-Zehnder (MZ) interferometers controlled by the thermo-optic effect has 2048 heater elements. In order to perform a desired connection of the optical input ports and the output ports, it is necessary to individually control the applied power to the heaters. To achieve this, we employed a pulse-width modulation to control the average power of the heaters. The pulse-width modulation is performed with high-repetition rate ON-OFF signal instead of a control of the applied analog current value to each heater. For achieving a high timing-resolution, two frequency counters are used with Vernier effect from the slightly shifted clocks in a frequency. We verified the timing-resolution of 6480 steps with 1 us repetition rate for each heater. Five general-purpose FPGAs (Field Programmable Gate Arrays) to control the heaters, buffer ICs and the switch element are mounted on a printed circuit board of 220 mm X 235 mm. The total switch system including the redundancy power-supply units, the cooling fans and control USB interface are installed to the 19 inches-wide 1RU-height housing.
Keyword (in Japanese) (See Japanese page) 
(in English) optical matrix switch / silicon photonics / pulse-width modulation / High timing-resolution / / / /  
Reference Info. IEICE Tech. Rep., vol. 116, no. 273, OCS2016-46, pp. 65-70, Oct. 2016.
Paper # OCS2016-46 
Date of Issue 2016-10-20 (OCS, 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)
Download PDF OCS2016-46 OPE2016-87 LQE2016-62

Conference Information
Committee LQE OPE OCS  
Conference Date 2016-10-27 - 2016-10-28 
Place (in Japanese) (See Japanese page) 
Place (in English) Miyazaki Citizen's Plaza 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To OCS 
Conference Code 2016-10-LQE-OPE-OCS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Driving circuit for 32X32 Optical Matrix Switch using High-resolution Pulse-width Modulation 
Sub Title (in English)  
Keyword(1) optical matrix switch  
Keyword(2) silicon photonics  
Keyword(3) pulse-width modulation  
Keyword(4) High timing-resolution  
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1st Author's Name Hiroyuki Matsuura  
1st Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
2nd Author's Name Satoshi Suda  
2nd Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
3rd Author's Name Ken Tanizawa  
3rd Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
4th Author's Name Keijiro Suzuki  
4th Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
5th Author's Name kazuhiro Ikeda  
5th Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
6th Author's Name Hitoshi Kawashima  
6th Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
7th Author's Name Shu Namiki  
7th Author's Affiliation National Institute of Advanced Industrial Science and Technology (AIST)
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Speaker Author-1 
Date Time 2016-10-28 09:40:00 
Presentation Time 25 minutes 
Registration for OCS 
Paper # OCS2016-46, OPE2016-87, LQE2016-62 
Volume (vol) vol.116 
Number (no) no.273(OCS), no.274(OPE), no.275(LQE) 
Page pp.65-70 
#Pages 6 
Date of Issue 2016-10-20 (OCS, OPE, LQE) 

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