Study on optical ad-hoc distortion compensation based on its 2-dimensionality

• Project/Area Number: 18360182
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Communication/Network engineering
• Research Institution: Osaka University
• Principal Investigator: KONISHI Tsuyoshi Osaka University, 大学院・工学研究科, 准教授 (90283720)
• Project Period (FY): 2006 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥17,650,000 (Direct Cost: ¥14,500,000、Indirect Cost: ¥3,150,000); Fiscal Year 2008: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000); Fiscal Year 2007: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000); Fiscal Year 2006: ¥4,000,000 (Direct Cost: ¥4,000,000)
• Keywords: フォトニックネットワーク / 情報通信工学 / 先端的通信 / 先端機能デバイス / 光スイッチ

Research Abstract

本研究では, ネットワークの光化において伝送・処理後の光信号の信頼性を確保するために, 光信号が被る様々な歪みの持つ時間および周波数の二次元性に着目して研究を行い, 時々刻々変化するアドホックな歪みを持つ高いビットレートの光信号列に対する歪み補償に関する原理の確認に成功した. また, 国内および米国における関連特許の受理により, 権利化に成功するとともに, その独自性が国際的にも認められた.

Research Products

• [Journal Article] Efficiency Improvement of Optical Pattern Recognition in Ultra-Fast All-Optical Intensity Equalizer (2009)
  • Author(s): H. Goto, T. Konishi, and K. Itoh
  • Journal Title: Opt. Rev vol.16, no.2 Pages: 180-183
  • NAID: 10025304291
  • Peer Reviewed
• [Journal Article] All-Optical Analog-to-Digital Conversion System with a Spatial Coding Method Using Designed Filter (2009)
  • Author(s): T. Kato, T. Konishi, and K. Itoh
  • Journal Title: Opt. Rev vol.16, no.2 Pages: 184-187
  • NAID: 10025304313
  • Peer Reviewed
• [Journal Article] Simultaneous amplitude and phase modulation by discrete phase-only filter (2009)
  • Author(s): H. Goto, T. Konishi, and K. Itoh
  • Journal Title: Opt. Lett vol.34, no.5 Pages: 641-643
  • Peer Reviewed
• [Journal Article] Ultrafast All-optical Intensity Stabilizer Based on Self Phase Modulation-Induced Spectral Pattern Change and Optical Pattern Recognition (2008)
  • Author(s): H. Goto, T. Konishi, and K. Itoh
  • Journal Title: Jpn. J. Appl. Phys 47 Pages: 8834-8834
  • NAID: 40016389615
  • Peer Reviewed
• [Journal Article] An all-optical limiter with high accuracy thresholding based on self-phase modulation assisted by preparatory waveform conversion (2008)
  • Author(s): H. Goto, T. Konishi, and K. Itoh
  • Journal Title: J. Opt. A : Pure Appl. Opt 10 Pages: 95306-95306
  • Peer Reviewed
• [Journal Article] Resolution Improvement of All-Optical Analog-to-Digital Conversion Employing Self-frequency Shift and Self-Phase-Modulation -Induced Spectral Compression (2008)
  • Author(s): T. Nishitani, T. Konishi, and K. Itoh
  • Journal Title: IEEE J. of Sel. Top. Quantum Electron 14 Pages: 724-732
  • Peer Reviewed
• [Journal Article] Resolution Improvement of All-Optical Analog-to-Digital Conversion Employing Self-frequency Shift and Self-Phase-Modulation-lnduced Spectral Compression (2008)
  • Author(s): T. Nishitani, T. Konishi, K. Itoh
  • Journal Title: IEEE J. of Sel. Top. Quantum Electron. 14 Pages: 724-732
  • Peer Reviewed
• [Journal Article] Ultrafast All-optical Intensity stabilizer Based on Self Phase Modulation-lnduced Spectral Pattern Change and optical Pattern Recognition (2008)
  • Author(s): H. Goto, T. Konishi, K. Itoh
  • Journal Title: Jpn. J. Appl. Phys. 47 Pages: 8834-8836
  • Peer Reviewed
• [Journal Article] Simultaneous amplitude and phase modulation by discrete phase-only filter (2008)
  • Author(s): H. Goto, T. Konishi, K. Itoh
  • Journal Title: Opt. Lett. (in press)
  • Peer Reviewed
• [Journal Article] All-Optical Analog-to-Digital Conversion Using Optical Delay Line Encoders (2007)
  • Author(s): T. Nishitani, T. Konishi, and K. Itoh
  • Journal Title: IEICE Trans. Electron E90-C Pages: 479-480
  • NAID: 110007519639
  • Peer Reviewed
• [Journal Article] Performance analysis of ultra-fast all-optical analog-to-digital converter using optical multiple-level thresholding module based on self-frequency shift in fiber (2007)
  • Author(s): T. Konishi, T. Nishitani, and K. Itoh
  • Journal Title: IEICE Trans. Electron(Invited) E90-C Pages: 405-408
  • NAID: 110007519628
  • Peer Reviewed
• [Journal Article] All-optical M-ary ASK signal demultiplexer based on a photonic analog-to-digital conversion (2007)
  • Author(s): T. Nishitani, T. Konishi, and K. Itoh
  • Journal Title: Opt. Express 15 Pages: 17025-17031
  • Peer Reviewed
• [Journal Article] Optical coding scheme using optical interconnection for high sampling rate and high resolution photonic analog-to-digital conversion (2007)
  • Author(s): T. Nishitani, T. Konishi, and K. Itoh
  • Journal Title: Opt. Express 15 Pages: 15812-15817
  • Peer Reviewed
• [Journal Article] Fabrication of Phase Only Binary Blazed Grating with Subwavelength Structures Designed by Deterministic Method Based on Electromagnetic Analysis (2007)
  • Author(s): T. Oonishi, T. Konishi, and K. Itoh
  • Journal Title: Jpn. J. Appl. Phys 46 Pages: 5435-5440
  • Peer Reviewed
• [Journal Article] Deterministic design of binary phase-only blazed grating with subwavelength features under limitation on spatial resolution of fabrication technique (2007)
  • Author(s): T. Oonishi, T. Konishi, and K. Itoh
  • Journal Title: Appl. Opt 46 Pages: 5019-5026
  • Peer Reviewed
• [Journal Article] Design and Evaluation of Computer Generated Hologram with Binary Subwavelength Structure Designed by Deterministic Process (2007)
  • Author(s): T. Oonishi, T. Konishi, and K. Itoh
  • Journal Title: Opt. Rev 14 Pages: 334-338
  • NAID: 10019835158
  • Peer Reviewed
• [Journal Article] Design and Evaluation of Computer Generated Hologram with Binary Subwavelength Structure Designed by Deterministic Process (2007)
  • Author(s): T. Oonishi, T. Konishi, and K.Itoh
  • Journal Title: Opt.Rev. 14 Pages: 334-338
  • NAID: 10019835158
  • Peer Reviewed
• [Journal Article] Deterministic design of binary phase-only blazed grating with subwavelength features under limitation on spatial resolution of fabrication technique (2007)
  • Author(s): T. Oonishi, T. Konishi, and K. Itoh
  • Journal Title: Appl. Opt. 46 Pages: 5019-5026
  • Peer Reviewed
• [Journal Article] All-optical analog-to-digital conversion using optical interconnection for gray code coding (2006)
  • Author(s): T. Nishitani, T. Konishi, and K. Itoh
  • Journal Title: Proceedings of SPIE - The International Society for Optical Engineering 6353, art no.63530H
  • Peer Reviewed
• [Journal Article] Wavelength- and time-division reconfigurable optical add/drop multiplexer(ROADM)using a time-space conversion and a MEMS optical switch (2006)
  • Author(s): T. Nishitani, T. Konishi, and K. Itoh
  • Journal Title: Proceedings of SPIE - The International Society for Optical Engineering 6353, art no.63530E
  • Peer Reviewed
• [Journal Article] Reduced wavelength-dependent quarter-wave plate fabricated by a multilayered subwavelength structure (2006)
  • Author(s): Wanji Yu, Akio Mizutani, Hisao Kikuta, and T. Konishi
  • Journal Title: Appl. Opt 45 Pages: 2601-2606
  • Peer Reviewed
• [Journal Article] Ultrafast optical distortion equalizer using time-frequency domain processing (2006)
  • Author(s): T. Konishi, Y. Oshita, K itoh
  • Journal Title: EEE/OSA J. Lightwave Technol 24 Pages: 2693-2700
  • Peer Reviewed
• [Journal Article] Ultrafast optical distortion equalizer using time-frequency domain processing (2006)
  • Author(s): T.Konishi, Y.Oshita, K.itoh
  • Journal Title: IEEE/OSA J. Lightwave Technology 24・7 Pages: 2693-2700
• [Journal Article] Performance analysis of ultra-fast all-optical analog-to-digital converter using optical multiple-level thresholding module based on self-frequency shift in fiber (2006)
  • Author(s): T.Konishi, T.Nishitani, K.Itoh
  • Journal Title: IEICE Transactions on Electronics E90-C・2 Pages: 405-408
  • NAID: 110007519628
• [Presentation] 超高速光デバイスの応答特性検証のための時間-周波数プロファイル計測技術 (2009)
  • Author(s): 小西 毅, 後藤洋臣
  • Organizer: 電子情報通信学会PN研究会(招待講演)
  • Place of Presentation: 札幌、日本
  • Year and Date: 2009-01-29
• [Presentation] New Tool for Response Characteristic Test of Optical Device : Optical Spectrogram Scope(Invited) (2008)
  • Author(s): T. Konishi, and H. Goto
  • Organizer: International Conference on Photonics in Switching 2008
  • Place of Presentation: Sapporo
  • Year and Date: 2008-08-07
• [Presentation] New Tool for Response Characteristic Test of Optical Device : Optical Spectrogram Scope (2008)
  • Author(s): T. Konishi, H. Goto
  • Organizer: International Conference on Photonics in Switching 2008 (Invited)
  • Place of Presentation: 札幌、日本
  • Year and Date: 2008-08-05
• [Presentation] Response characteristics test of ultra-fast optical devices with optical spectrogram scope(OSS) (2008)
  • Author(s): T. Konishi, and H. Goto
  • Organizer: 10th Anniversary International Conference on Transparent Optical Networks(ICTON 2008)
  • Place of Presentation: Athens,(2008).(Invited)
  • Year and Date: 2008-06-24
• [Presentation] Response characteristics test of ultra-fast optical devices with optical spectrogram scope(OSS) (2008)
  • Author(s): T. Konishi, H. Goto
  • Organizer: Intemafonal Conference on Transparent Optical Networks 2008 (Invited)
  • Place of Presentation: Athens、Greece
  • Year and Date: 2008-06-24
• [Presentation] All optical processing and monitoring technologies(Invited) (2008)
  • Author(s): T. Konishi
  • Organizer: SEON 2008
  • Place of Presentation: Porto
  • Year and Date: 2008-06-20
• [Presentation] Arbitrary Wavelength- and Time-Selective Reconfigurable Optical Add/Drop Multiplexer (RODAM) using Two-Dimensional Time-Space Conversion and a MEMS Optical Switch (2008)
  • Author(s): R. Itoh, T. Konishi, Y. Yonetani, and K. Itoh
  • Organizer: 6th International Conference on Optics-photonics Design & Fabrication, ODF'08
  • Place of Presentation: Taipei
  • Year and Date: 2008-06-11
• [Presentation] All-optical analog-to-digital conversion using a designed spatial coding filter (2008)
  • Author(s): T. Kato, T. Konishi, T. Nishitani, and K. Itoh
  • Organizer: 6th International Conference on Optics-photonics Design & Fabrication, ODF'08
  • Place of Presentation: Taipei
  • Year and Date: 2008-06-11
• [Presentation] Amplitude-Phase Modulation Technique using Phase-Only Filter for Optical Intensity Equalizer (2008)
  • Author(s): H. Goto, T. Konishi, T. Nishitani, and K. Itoh
  • Organizer: 6th International Conference on Optics-photonics Design & Fabrication, ODF'08
  • Place of Presentation: Taipei
  • Year and Date: 2008-06-10
• [Presentation] Monitoring of O-CDMA Codes using Time-Frequency map (2007)
  • Author(s): T. Konishi
  • Organizer: Optical Network Technology for New Era (Joint Workshop on OPS & OCDMA)
  • Place of Presentation: 東京
  • Year and Date: 2007-11-08
• [Presentation] Monitoring of O-CDMA Codes using Time-Frequency map(Invited) (2007)
  • Author(s): T. Konishi
  • Organizer: International Joint Workshop on OCDMA and OPS 2007
  • Place of Presentation: Tokyo
  • Year and Date: 2007-11-07
• [Presentation] Ultra-fast Optical Signal Processing Using Optical Time-Space Conversion(Invited) (2007)
  • Author(s): T. Konishi
  • Organizer: The 7th Pacific Rim Conference on Laser and Electro-Optics (CLEO/PR 2007)
  • Place of Presentation: Seoul
  • Year and Date: 2007-08-28
• [Presentation] Ultra-fast Optical Signal Processing Using Optical Time-Space Conversion (2007)
  • Author(s): T. Konishi
  • Organizer: The 7th Pacific Rim Conference on Laser and Electro-Optics
  • Place of Presentation: ソウル
  • Year and Date: 2007-08-27
• [Presentation] Optical Label Recognition assisted by Optical Signal Processing (2006)
  • Author(s): T. Konishi
  • Organizer: International Joint Workshop on OCDMA and OPS 2006
  • Place of Presentation: Beijing(2006)(Invited)
  • Year and Date: 2006-12-05
• [Presentation] Demonstration and Evaluation of all-optical M-ary ASK signal Demultiplexer Based on Photonic Analog-to-digital Conversion (2006)
  • Author(s): T. Nishitani, T. Konishi and K. Itoh
  • Organizer: European Conference on Optical Communication(ECOC 2006)
  • Place of Presentation: Canne
  • Year and Date: 2006-09-28
• [Presentation] Arbitrary Wavelength- and Time-Selective Reconfigurable Optical Add/Drop Multiplexer(ROADM)Using a Time-Space Conversion and a MEMS Optical Switch (2006)
  • Author(s): R. Itoh, T. Konishi, K. Itoh
  • Organizer: European Conference on Optical Communication(ECOC 2006)
  • Place of Presentation: Canne
  • Year and Date: 2006-09-27
• [Book] Laser,Optics and Electro-Optics Research Trends (2007)
  • Author(s): Tsuyoshi KONISHI
  • Publisher: Nova Science Publishers
• [Patent(Industrial Property Rights)] Chirp indicator of ultrashort optical pulse (2008)
  • Inventor(s): Tsuyoshi KONISHI
  • Industrial Property Rights Holder: Osaka University
  • Acquisition Date: 2008-05-27
  • Overseas
• [Patent(Industrial Property Rights)] 超短光パルス信号の分散補償方法 およびその装置 (2007)
  • Inventor(s): 小西毅, 伊東一良, 一岡芳樹, 尾下善紀
  • Industrial Property Rights Holder: 独立行政法人科学技術振興機構
  • Acquisition Date: 2007-10-19