| Presentation | 2016-10-28 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, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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) |
| Keyword(in English) | optical matrix switch / silicon photonics / pulse-width modulation / High timing-resolution |
| Paper # | OCS2016-46,OPE2016-87,LQE2016-62 |
| Date of Issue | 2016-10-20 (OCS, OPE, LQE) |
| Conference Information | |
| Committee | LQE / OPE / OCS |
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| Conference Date | 2016/10/27(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Miyazaki Citizen's Plaza |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Susumu Noda(Kyoto Univ.) / Kensuke Ogawa(Fujikura) / Akira Hirano(NTT) |
| Vice Chair | Tsuyoshi Yamamoto(Fujitsu Labs.) / Kazutoshi Kato(Kyushu Univ.) / Itsuro Morita(KDDI R&D Labs.) |
| Secretary | Tsuyoshi Yamamoto(NTT) / Kazutoshi Kato(Tohoku Univ.) / Itsuro Morita(Keio Univ.) |
| Assistant | / Atsushi Aratake(NTT) / Katsumi Nakatsuhara(Kanagawa Inst. of Tech.) |
| Paper Information | |
| Registration To | Technical Committee on Lasers and Quantum Electronics / Technical Committee on Optoelectronics / Technical Committee on Optical Communication Systems |
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| Language | JPN |
| 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 |
| 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) |
| Date | 2016-10-28 |
| Paper # | OCS2016-46,OPE2016-87,LQE2016-62 |
| Volume (vol) | vol.116 |
| Number (no) | OCS-273,OPE-274,LQE-275 |
| Page | pp.pp.65-70(OCS), pp.65-70(OPE), pp.65-70(LQE), |
| #Pages | 6 |
| Date of Issue | 2016-10-20 (OCS, OPE, LQE) |