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Optical time-frequency multiplexer for high-speed and high-density optical communication networks

Research Project

Project/Area Number 15H04001
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Electron device/Electronic equipment
Research InstitutionNational Institute of Information and Communications Technology

Principal Investigator

Sakamoto Takahide  国立研究開発法人情報通信研究機構, ネットワークシステム研究所ネットワーク基盤研究室, 主任研究員 (70392727)

Co-Investigator(Kenkyū-buntansha) 梅沢 俊匡  国立研究開発法人情報通信研究機構, ネットワークシステム研究所ネットワーク基盤研究室, 主任研究員 (20636047)
久利 敏明  国立研究開発法人情報通信研究機構, ネットワークシステム研究所ネットワーク基盤研究室, 研究マネージャー (30359070)
千葉 明人  群馬大学, 大学院理工学府, 助教 (30435789)
呂 国偉  東海大学, 創造科学技術研究機構, 准教授 (30599709)
川西 哲也  早稲田大学, 理工学術院, 教授 (40359063)
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥14,300,000 (Direct Cost: ¥11,000,000、Indirect Cost: ¥3,300,000)
Fiscal Year 2017: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2016: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2015: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Keywords光デバイス / 光回路 / 光多重
Outline of Final Research Achievements

For future ultrafast optical communication, we need to realize practical optical multiplexing techniques, where multiple optical channels are bundled and multiplexed in a fiber. In conventional approaches, high-resolution optical filters like arrayed waveguide gratings (AWGs) are typically used for the optical multiplexing. In this research, we proposed and demonstrated a novel optical multiplexer called optical time-frequency multiplexer. By using the technology, we have successfully demonstrated optical multiplexing and transmission at 160 Gb/s.

Academic Significance and Societal Importance of the Research Achievements

本研究の学術的意義は、超高速光通信に必要な光多重を、従来に無いシンプルな方法で実現出来ることを示したものである。得られた成果は、著名論文誌、国際会議に投稿、採択され報告を行った。また、招待論文、招待講演を受けるなど、その意義は広く認知されている。本技術は、将来の光通信システムの中核を支える技術となる潜在性を持ち、インターネット性能向上への貢献も十分に期待できるため、社会的意義も大きい。

Report

(4 results)
  • 2018 Final Research Report ( PDF )
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • 2015 Annual Research Report
  • Research Products

    (79 results)

All 2018 2017 2016 2015

All Journal Article (12 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 12 results,  Open Access: 8 results,  Acknowledgement Compliant: 5 results) Presentation (67 results) (of which Int'l Joint Research: 51 results,  Invited: 6 results)

  • [Journal Article] Experimental demonstration of SPM compensation based on digital signal processing using a three-layer neural-network for 40-Gbit/s optical 16QAM signal2018

    • Author(s)
      S. Owaki, Y. Fukumoto, T. Sakamoto, N. Yamamoto, M. Nakamura “Experimental Demonstration of SPM Compensation based on Digital Signal Processing Using a Three-layer Neural-Network for 40-Gbit/s Optical 16QAM Signal
    • Journal Title

      IEICE Communications Express

      Volume: 7 Issue: 1 Pages: 13-18

    • DOI

      10.1587/comex.2017XBL0148

    • NAID

      130006301706

    • ISSN
      2187-0136
    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Multiple-frequency-spaced flat optical comb generation using a multiple-parallel phase modulator2017

    • Author(s)
      Sakamoto Takahide、Chiba Akito
    • Journal Title

      Optics Letters

      Volume: 42 Issue: 21 Pages: 4462-4465

    • DOI

      10.1364/ol.42.004462

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Simple Self-Homodyne Detection Scheme for Optical OFDM With Inserted Pilot Subframes and Application in Optical Access Networks2017

    • Author(s)
      Lu Guo-Wei、Guan Xun、Sakamoto Takahide、Yamamoto Naokatsu、Chan Calvin Chun-Kit
    • Journal Title

      IEEE Access

      Volume: 5 Pages: 24602-24607

    • DOI

      10.1109/access.2017.2765336

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Loop-assisted coherent matched detector for parallel time-frequency sampling2017

    • Author(s)
      Takahide Sakamoto, Guo-Wei Lu, Naokatsu Yamamto
    • Journal Title

      Journal of Lightwave Technology

      Volume: 35 Issue: 4 Pages: 807-814

    • DOI

      10.1109/jlt.2016.2645224

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ultrashort optical pulse source using Mach?Zehnder-modulator-based flat comb generator2016

    • Author(s)
      Morohashi Isao、Sakamoto Takahide、Sekine Norihiko、Kasamatsu Akifumi、Hosako Iwao
    • Journal Title

      Nano Communication Networks

      Volume: 10 Pages: 79-84

    • DOI

      10.1016/j.nancom.2016.07.012

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Flexible and scalable wavelength multicast of coherent optical OFDM with tolerance against pump phase-noise using reconfigurable coherent multi-carrier pumping2016

    • Author(s)
      Guo-Wei Lu, Tianwai Bo, Takahide Sakamoto, Naokatsu Yamamoto, and Calvin Chun-Kit Chan
    • Journal Title

      Optics Express

      Volume: 24 Issue: 20 Pages: 22573-22580

    • DOI

      10.1364/oe.24.022573

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Pump-phase-noise-free optical wavelength data exchange between QAM signals with 50-GHz channel-spacing using coherent DFB pump2016

    • Author(s)
      Guo-Wei Lu, Andre Albuquerque, Benjamin J. Puttnam, Takahide Sakamoto, Miguel Drummond, Rogério Nogueira, Atsushi Kanno, Satoshi Shinada, Naoya Wada, and Tetsuya Kawanishi
    • Journal Title

      Optics Express

      Volume: 24 Issue: 4 Pages: 3702-3712

    • DOI

      10.1364/oe.24.003702

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Laser-Phase-Fluctuation-Insensitive Optical Coherent Transmission of 16-Quadrature-Amplitude-Modulation Radio-over-Fiber Signal (Top-Scoring Paper)2016

    • Author(s)
      T. Kuri, T. Sakamoto, and T. Kawanishi
    • Journal Title

      OSA J. Lightwave Technol.

      Volume: 34 Issue: 2 Pages: 683-690

    • DOI

      10.1109/jlt.2015.2508441

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Generation of Arbitrarily Patterned Pulse Trains in the THz Range by Spectral Synthesis of Optical Combs2015

    • Author(s)
      I. Morohashi, T. Sakamoto, N. Sekine, T. Kawanishi, A. Kasamatsu, I. Hosako
    • Journal Title

      IEICE Transactions on Electronics

      Volume: E98.C Issue: 8 Pages: 793-798

    • DOI

      10.1587/transele.E98.C.793

    • NAID

      130005090378

    • ISSN
      0916-8524, 1745-1353
    • Related Report
      2015 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Optical 8QAM and 8PSK synthesis by cascading arbitrary 2QAM with squared QPSK2015

    • Author(s)
      Guo-Wei Lu, Jose Manuel Delgado Mendinueta, Takahide Sakamoto, Naoya Wada, and Tetsuya Kawanishi
    • Journal Title

      Optics Express

      Volume: 23 Issue: 16 Pages: 21366-21374

    • DOI

      10.1364/oe.23.021366

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Journal Article] Laser-phase-fluctuation-insensitive offset- frequency-spaced two-tone optical coherent detection scheme and its transmission for radio-over-fiber systems2015

    • Author(s)
      T. Kuri, T. Sakamoto, and T. Kawanishi
    • Journal Title

      OSA Optics Express

      Volume: 23 Issue: 19 Pages: 24140-2415

    • DOI

      10.1364/oe.23.024140

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Flexible High-order QAM Transmitters for Elastic Optical Networks2015

    • Author(s)
      Guo-Wei Lu, Takahide Sakamoto, and Tetsuya Kawanishi
    • Journal Title

      Springer Photonic Network Communications

      Volume: 2015 Issue: 2 Pages: 1-8

    • DOI

      10.1007/s11107-015-0548-5

    • Related Report
      2015 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] 並列型光変調器を用いた光コム偶奇モード選択発生に関する検討2018

    • Author(s)
      坂本高秀,千葉明人
    • Organizer
      電子情報通信学会総合大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Two-dimensional Spatial Coherent Matched Detection Scheme for Modal Separation and Homodyne Detection of Mode-Division Multiplexed Signals2017

    • Author(s)
      T. Sakamoto, T. Umezawa, N. Yamamoto, T. Kawanish
    • Organizer
      the IEEE Photonics Conference 2017 (IPC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Spatial Coherent Matched Detection Using High-Speed Two-Dimensional Photo-Diode Array for Full-Channel Demultiplexing and Demodulation of Mode-Division-Multiplexed Signals2017

    • Author(s)
      T. Sakamoto, T. Umezawa, G.W. Lu, K. Akahane, A. Matsumoto, A. Kanno, N. Yamamoto, T. Kawanishi
    • Organizer
      43th European Conference on Optical Communication (ECOC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Even/Odd Mode-Selective Double Frequency-Spaced Optical Comb Generation by Quad-Parallel Phase Modulator2017

    • Author(s)
      T. Sakamoto, and A. Chiba
    • Organizer
      the Pacific Rim Conference on Lasers and Electro-Optics (CLEO-Pacific Rim)/ The 22th OptoElectronics and Communications Conference (OECC2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Homodyne Direct Down-Conversion of 8-PSK Conjugated Radio-over-Fiber Signals for Fiber Nonlinearity Cancellation2017

    • Author(s)
      T. Sakamoto, and G.-W. Lu
    • Organizer
      The European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference (CLEO/Europe-IQEC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dense SDM 32-pixel 2-D photodetector array2017

    • Author(s)
      T. Umezawa, T. Sakamoto, A. Kanno, K. Kusakata, K. Akahane, A. Matsumoto, N. Yamamoto, T. Kawanishi
    • Organizer
      43th European Conference on Optical Communication (ECOC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optical Subcarrier Processing for Nyquist SCM via Coherent Spectrum Overlapping in FWM with Coherent Pump2017

    • Author(s)
      G.W. Lu, R. Luis, J.M.D. Mendinueta, T. Sakamoto, N. Yamamoto, “Optical Subcarrier Processing for Nyquist SCM via Coherent Spectrum Overlapping in FWM with Coherent Pump
    • Organizer
      43th European Conference on Optical Communication (ECOC 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Frequency-Selective Multi-Frequency THz Reference Source Using Mach-Zehnder-Modulator-Based Flat Comb Generator for Simultaneous Phase-Locking of THz-QCLs2017

    • Author(s)
      I. Morohashi, Y. Irijmajiri, A. Kawakami, T. Sakamoto, N. Sekine, A. Kasamatsu, I. Hosako
    • Organizer
      The 42th International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Generation of Wide Frequency-Spacing Optical Frequency Comb Composed of Odd/Even Multiple Harmonics2017

    • Author(s)
      A. Chiba, N. Kobayashi, Y. Moteki, T. Sakamoto, K. Takada
    • Organizer
      the Pacific Rim Conference on Lasers and Electro-Optics (CLEO-Pacific Rim)/ The 22th OptoElectronics and Communications Conference (OECC2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 10-GHz 32-pixel 2-D photodetector array for advanced optical fiber communications2017

    • Author(s)
      T. Umezawa, T. Sakamoto, K. Akahane, A. Matsumoto, A. Kanno, N. Yamamoto, T. Kawanishi
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simultaneous Phase-Locking of Quantum Cascade Lasers Using Multi-Frequency THz Source System Composed of MZM-Based Flat Comb Generator2017

    • Author(s)
      I. Morohashi, Y. Irimajiri, M. Kumagai1, A. Kawakami, T. Sakamoto, N. Sekine, A. Kasamatsu, I. Hosako
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simplified Self-Homodyne Detection for Optical OFDM with Inserted Pilot Sub- Samples and its Application in Downstream of Optical Access Networks2017

    • Author(s)
      G.-W. Lu, X. Guan, T. Sakamoto, N. Yamamoto, C.C. Chan
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Accurate frequency measurement of THz radiations by electrooptic sampling using a modulator-based optical comb generator for frequency stabilization of CW-THz sources2017

    • Author(s)
      I. Morohashi, M. Kirigaya, I. Katayama, Y. Irijmajiri, T. Sakamoto, N. Sekine, A. Kasamatsu, I. Hosako
    • Organizer
      2nd International Workshop on Photonics Applied to Electromagnetic Measurements
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A CW-THz source with broadband tunability and high frequency accuracy using an optical-modulator-based flat comb generator for high precision spectroscopy2017

    • Author(s)
      I. Morohashi, T. Sakamoto, N. Sekine, A. Kasamatsu, I. Hosako
    • Organizer
      Optical Terahertz Science and Technology (OTST 2017)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 並列型光変調器による生成光コムスペクトルの自己インターリービング2017

    • Author(s)
      坂本高秀,千葉明人
    • Organizer
      電子情報通信学会光ファイバ技術研究会(OFT), OFT信学技報
    • Related Report
      2017 Annual Research Report
  • [Presentation] 2次元フォトダイオードアレイを用いた空間整合受信器による空間分割多重光の全チャネル多重分離・復調2017

    • Author(s)
      坂本高秀,梅沢俊匡,呂 國偉,山本直克,川西哲也
    • Organizer
      電子情報通信学会ソサエティ大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 高速2次元PDアレイを用いたマルチモードの位相特性評価2017

    • Author(s)
      日下田 健,梅沢俊匡,坂本高秀,川西哲也
    • Organizer
      電子情報通信学会ソサエティ大会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Ultrafast Demultiplexing of Optical Time-Division Multiplexed Signals by Parallel Opto-Electronic Time-frequency Domain Sampling2017

    • Author(s)
      T. Sakamoto, G.W. Lu, N. Yamamoto
    • Organizer
      the 2017 Optical Fiber Communication Conference (OFC2017)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Opto-Electronic Time-Frequency Domain Sampling for Ultra High-Bandwidth Multi-Carrier Signal Detection (invited)2016

    • Author(s)
      T. Sakamoto
    • Organizer
      the 2016 Optical Fiber Communication Conference (OFC2016)
    • Place of Presentation
      Anaheim, USA
    • Year and Date
      2016-03-20
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 集積型偏波多重直交変調器による光位相共役信号対発生2016

    • Author(s)
      坂本高秀,呂國偉,川西哲也
    • Organizer
      電子情報通信学会総合大会
    • Place of Presentation
      九州大学,福岡県,福岡市
    • Year and Date
      2016-03-15
    • Related Report
      2015 Annual Research Report
  • [Presentation] Investigation on electro-optic optical comb generation with higher spectral resolution and bandwidth2016

    • Author(s)
      T. Sakamoto, and I. Morohashi
    • Organizer
      SPIE Photonics West
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2016-02-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Offset-frequency-spaced two-tone coherent transmission of radio-over-fiber signal with recovered-constellation combining technique2016

    • Author(s)
      T. Kuri, T. Sakamoto, and N. Yamamoto
    • Organizer
      SPIE Photonics West
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2016-02-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Frequency measurement of THz waves by electro-optic sampling using Mach-Zehnder-modulator-based flat comb generator2016

    • Author(s)
      I. Morohsashi, M. Kitagawa, Y. Kaneko, I. Katayama, T. Sakamoto, N. Sekine, T. Kawanishi, A. Kasamatsu, and I. Hosakao
    • Organizer
      SPIE Photonics West
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2016-02-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] MZMベース超平坦光コム発生器を用いたテラヘルツ帯周波数計測法の性能評価2016

    • Author(s)
      桐ヶ谷茉夕,諸橋功,金子優太,片山郁文,入交芳久,坂本高秀,関根徳彦,笠松章史,寳迫巌,
    • Organizer
      電子情報通信学会光エレクトロニクス研究会(OPE)
    • Place of Presentation
      神戸市産業振興センター,兵庫県,神戸市
    • Year and Date
      2016-01-28
    • Related Report
      2015 Annual Research Report
  • [Presentation] Non-uniform Operation of Cascaded Mach-zehnder Modulator Based Flat Comb Generators for Higher Spectral Bandwidth and Resolution2016

    • Author(s)
      T. Sakamoto, I. Morohashi, N. Yamamoto
    • Organizer
      OSA Fourier Transform Spectroscopy (FTS2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental Demonstration of Fiber-Nonlinearity-Torelant Conjugated-Paired Radio-on-Fiber System Employing Asymmetric Photonic Heterodyne Down-Converter2016

    • Author(s)
      T. Sakamoto, G.-W. Lu, T. Kawanishi
    • Organizer
      2016 IEEE International Topical Meeting on Microwave Photonics (MWP 2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Double-Frequency-Spaced Optical Comb Generation Technique Based on Quad-Parallel Phase Modulators2016

    • Author(s)
      T. Sakamoto
    • Organizer
      IEEE Photonics Conference 2016 (IPC2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Full-Channel Parallel Measurement of 4x20-Gb/s All-Optical OFDM Signals by Using Loop-Assisted Coherent Matched Detector2016

    • Author(s)
      T. Sakamoto, G.W. Lu, N. Yamamoto
    • Organizer
      42th European Conference on Optical Communication (ECOC 2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dispersion Compensation Scheme for Time-Frequency-Domain Multiplexed 4x/8x Ultra-Wideband Multi-Carrier Signals2016

    • Author(s)
      T. Sakamoto
    • Organizer
      The 21th OptoElectronics and Communications Conference (OECC2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dual Coherent Sampling with Low-Speed Digital Signal Processing for Monitoring Carrier-Phase-Drifted Constellations2016

    • Author(s)
      T. Sakamoto
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Investigation on Phase-Sensitive Fiber Nonlinearity Cancellation in Conjugated-Paired Radio-on-Fiber System2016

    • Author(s)
      T. Sakamoto, G.W. Lu, T. Kawanishi
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Offset-Frequency-Spaced Two-Tone Optical Coherent Detection Scheme of Radio-over-Fiber Signaland Its Polarization Diversity Technique2016

    • Author(s)
      T. Kuri, T. Sakamoto
    • Organizer
      Energy Materials Nanotechnology Meeting on Optical Communications (EMN Optical Communications)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Terahertz Source with Broad Frequency Tunability Up To 3.8 THz Using MZ-FCG for Frequency Reference in Phase-Locking of THz Source Devices2016

    • Author(s)
      I. Morohashi, Y. Irimajiri, M. Kumagai, A. Kawakami, T. Sakamoto, N. Sekine, A. Kasamatsu, I. Hosako
    • Organizer
      2016 IEEE International Topical Meeting on Microwave Photonics (MWP 2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Phase-Fluctuation-Cancelled Component Combining Technique in Offset-Frequency-Spaced Two-Tone Coherent Detection System2016

    • Author(s)
      T. Kuri, T. Sakamoto
    • Organizer
      IEEE Photonics Conference 2016 (IPC2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multi-Frequency THz Reference Source by Spectral Synthesis of Optical Combs for Simultaneous Phase-Locking of THz Sources2016

    • Author(s)
      I. Morohsashi, Y. Irimajiri, T. Sakamoto, N. Sekine, A. Kasamatsu, I. Hosakao
    • Organizer
      41th International Conference on Infrared, Millimeter, and Terahertz Waves
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Differential Coding in Polarizations with Half-Symbol-Period Timing Offset for Coherent PM-QPSK to improve Phase-Noise Tolerance2016

    • Author(s)
      G.-W. Lu, T. Sakamoto, Y. Kamio
    • Organizer
      The 21th OptoElectronics and Communications Conference (OECC2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] , “Frequency Reference Source in the THz Range Using Mach-Zehnder-Modulator-Based Flat Comb Generator2016

    • Author(s)
      I. Morohashi, Y. Irimajiri, M. Kumagai, A. Kawakami, T. Sakamoto, N. Sekine, A. Kasamatsu, I. Hosako
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experimental Investigation of Phase-Sensitive Amplification in Quantum-Dot Semiconductor Optical Amplifier2016

    • Author(s)
      G.-W. Lu, T. Bo, T. Sakamoto, K. Akahane, B.J. Puttnam, C.C. Chan, N. Yamamoto
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2016)
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 光変調器を用いた光位相共役信号対発生及びその位相感応受信に関する検討2016

    • Author(s)
      坂本高秀,呂國偉,山本直克,川西哲也
    • Organizer
      電子情報通信学会光通信システム研究会(OCS), OCS信学技報
    • Related Report
      2016 Annual Research Report
  • [Presentation] [招待講演]OFC2016報告~ 光ネットワーク関連 ~2016

    • Author(s)
      坂本高秀
    • Organizer
      電子情報通信学会光通信システム研究会(OCS),信学技報
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Electro-Optic Sampling Detection of CW-THz Signals Using MZM-Based Flat Comb Generator2015

    • Author(s)
      I. Morohsashi, M. Kirigaya, Y. Kaneko, I. Katayama, Y. Irimajiri, T. Sakamoto, N. Sekine, A. Kasamatsu, and I. Hosakao
    • Organizer
      First PEM International Workshop
    • Place of Presentation
      Doshisha Univ., Kyoto, Kyoto pref. , Japan
    • Year and Date
      2015-11-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Optical comb/pulse synthesis by electro-optic modulation (invited)2015

    • Author(s)
      T. Sakamoto
    • Organizer
      Energy Materials Nanotechnology Meeting on Ultrafast Research
    • Place of Presentation
      Las Vegas, USA
    • Year and Date
      2015-11-16
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] マッハツェンダ変調器型光コム発生器を用いた電気光学サンプリングによるサブテラヘルツ帯周波数計測2015

    • Author(s)
      諸橋功,桐ヶ谷茉夕,金子優太,片山郁文,入交芳久,坂本高秀,関根徳彦,笠松章史,寳迫巌
    • Organizer
      電子情報通信学会レーザ量子エレクトロニクス研究会(LQE)
    • Place of Presentation
      別府国際コンベンションセンター,大分県,別府市
    • Year and Date
      2015-10-29
    • Related Report
      2015 Annual Research Report
  • [Presentation] Data Overlay in Optical Networks through Level-Scalable Flexible Modulation and its Application in Multicast Overlay for WDM-PON2015

    • Author(s)
      G.-W. Lu, T. Sakamoto, and T. Kawanishi
    • Organizer
      電子情報通信学会光ファイバ技術研究会(OFT)
    • Place of Presentation
      三重大学,三重県,津市
    • Year and Date
      2015-10-22
    • Related Report
      2015 Annual Research Report
  • [Presentation] Phase-Fluctuation-Insensitive Radio-over-Fiber Transmission with Recovered-Constellation Combining Technique2015

    • Author(s)
      T. Kuri, T. Sakamoto, and T. Kawanishi
    • Organizer
      電子情報通信学会光ファイバ技術研究会(OFT)
    • Place of Presentation
      三重大学,三重県,津市
    • Year and Date
      2015-10-22
    • Related Report
      2015 Annual Research Report
  • [Presentation] Perspective of New Infrastructure of Fiber Communication: The Role of Coherent Light in SDM Era2015

    • Author(s)
      Y. Awaji, J. Sakaguchi, T. Sakamoto, Atsushi Kanno, Motohiro Kumagai, Ying Li, Tetsuya Ido, Naoya Wada, Tetsuya Kawanishi
    • Organizer
      Frontiers in Optics / Laser Science 2015
    • Place of Presentation
      San Jose, USA
    • Year and Date
      2015-10-18
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Oppositely-Biased Dual-polarization IQ Modulators for Nonlinearity-Tolerant Polarization-Multiplexed Phase-Conjugated Twin-Signals Generation2015

    • Author(s)
      T. Sakamoto, G.W. Lu, T. Kawanishi
    • Organizer
      41th European Conference on Optical Communication (ECOC2015)
    • Place of Presentation
      Valencia, Spain
    • Year and Date
      2015-09-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Radio over fiber systems: state of the art and perspectives (workshop, invited)2015

    • Author(s)
      T. Sakamoto
    • Organizer
      41th European Conference on Optical Communication (ECOC2015)
    • Place of Presentation
      Valencia, Spain
    • Year and Date
      2015-09-27
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Impact of Tight Optical Filtering on Orthogonal Time-Frequency Domain Multiplexed Signals in Wavelength-Selective Switching Systems2015

    • Author(s)
      T. Sakamoto
    • Organizer
      The Photonics in Switching (PS2015)
    • Place of Presentation
      Florence, Italy
    • Year and Date
      2015-09-22
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ループアシスト型コヒーレント整合受信器による時間周波数多重信号の一括チャネル分離測定2015

    • Author(s)
      坂本高秀,呂國偉,川西哲也
    • Organizer
      電子情報通信学会ソサエティ大会
    • Place of Presentation
      東北大学,宮城県,仙台市
    • Year and Date
      2015-09-08
    • Related Report
      2015 Annual Research Report
  • [Presentation] Generation of cw-THz waves with high frequency accuracy by Mach-Zehnder-modulator-based flat comb generator for phase-locking of THz-QCLs2015

    • Author(s)
      I. Morohsashi, T. Sakamoto, N. Sekine, T. Kawanishi, A. Kasamatsu, and I. Hosakao
    • Organizer
      40th International Conference on Infrared, Millimeter, and Terahertz Waves
    • Place of Presentation
      Hong Kong, UK
    • Year and Date
      2015-08-23
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 1550nm-band Quantum Dot Semiconductor Optical Amplifier for Mode Division Multiplexing2015

    • Author(s)
      A. Matsumoto. K. Akahane, T. Sakamoto, N. Yamamoto, T. Kawanishi
    • Organizer
      The 7th International Symposium on Ultrafast Photonic Technologies (ISUPT2015) and International Symposium on extremely advanced transmission technology (EXAT 2015)
    • Place of Presentation
      Coop inn Kyoto, Kyoto, Kyoto Pref., Japan
    • Year and Date
      2015-07-13
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Generation method for bandwidth-limited terahertz pulses by spectral synthesis of optical comb generated by a MZM-based flat comb generator2015

    • Author(s)
      I. Morohsashi, T. Sakamoto, N. Sekine, T. Kawanishi, A. Kasamatsu, and I. Hosakao,
    • Organizer
      The 36th Progress In Electromagnetics Research Symposium (PIERS)
    • Place of Presentation
      Plague, Czech Republic
    • Year and Date
      2015-07-06
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] CW Terahertz Source with Wideband Frequency Tunability Using Optical-Modulator-Based Frequency Comb Source for Frequency-Sweep High Resolution Spectroscopy2015

    • Author(s)
      I. Morohsashi, Y. Irimajiri, T. Sakamoto, N. Sekine, T. Kawanishi, A. Kasamatsu, and I. Hosakao
    • Organizer
      The 3rd International Symposium on Microwave/Terahertz Science and Applications (MTSA 2015)
    • Place of Presentation
      OIST, Onna, Okinawa Pref., Japan
    • Year and Date
      2015-06-30
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Recovered-Constellation Combining for Polarization-Insensitive Offset-Frequency-Spaced Two-Tone Optical Coherent Detection Scheme in Radio-over-Fiber Systems2015

    • Author(s)
      T. Kuri, T. Sakamoto, and T. Kawanishi
    • Organizer
      The 20th OptoElectronics and Communications Conference (OECC 2015)
    • Place of Presentation
      Shanghai, China
    • Year and Date
      2015-06-28
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Simultaneous Dual-Channel Reception Scheme for Incoherently Multiplexed Dual-Carrier Signals2015

    • Author(s)
      T. Sakamoto
    • Organizer
      The European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference (CLEO/Europe-IQEC 2015)
    • Place of Presentation
      Munich, Germany
    • Year and Date
      2015-06-21
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Pump-Phase-Noise-Free Multichannel Wavelength Multicasting for QAM Signals using Coherent Multi-Carrier Pump2015

    • Author(s)
      G.W. Lu, T. Sakamoto, T. Kawanishi
    • Organizer
      The European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference (CLEO/Europe-IQEC 2015)
    • Place of Presentation
      Munich, Germany
    • Year and Date
      2015-06-21
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 80 fs Optical Pulse Generation Using Mach- Zehnder-Modulator-Based Flat Comb Generator and Dispersion-Flattened Dispersion-Decreasing Fibre2015

    • Author(s)
      I. Morohsashi, T. Sakamoto, N. Sekine, T. Kawanishi, A. Kasamatsu, and I. Hosako,
    • Organizer
      The European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference (CLEO/Europe-IQEC 2015)
    • Place of Presentation
      Munich, Germany
    • Year and Date
      2015-06-21
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dispersion Compensation Scheme for Ultra-Wideband Coherent Matched Detection2015

    • Author(s)
      T. Sakamoto
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2015)
    • Place of Presentation
      San Jose, USA
    • Year and Date
      2015-05-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Fiber Nonlinearity Tolerance of Traceback Equalization for Non-Uniformly Distorted QAM Signals2015

    • Author(s)
      T. Sakamoto, G.-W. Lu, and T. Kawanishi
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2015)
    • Place of Presentation
      San Jose, USA
    • Year and Date
      2015-05-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Multichannel Wavelength Multicasting for QAM Signals Free of Pump-Phase-Noise using Flexible Coherent Multi-Carrier Pump2015

    • Author(s)
      G.-W. Lu, T. Sakamoto, T. Kawanishi
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2015)
    • Place of Presentation
      San Jose, USA
    • Year and Date
      2015-05-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Measurement of Terahertz Spectrum Using Heterodyne Technique with LO signal Generated by an MZM-Based Flat Comb Source2015

    • Author(s)
      I. Morohsashi, Y. Irimajiri, M. Kumagai, A. Kawakami, T. Sakamoto, N. Sekine, T. Kawanishi, A. Kasamatsu, and I. Hosakao
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2015)
    • Place of Presentation
      San Jose, USA
    • Year and Date
      2015-05-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Efficient Generation of Twin Photons at Telecom Wavelengths with 10 GHz Repetition-Rate-Tunable Comb Laser2015

    • Author(s)
      R.B. Jin, R. Shimizu, I. Morohashi, K. Wakui, M. Takeoka, S. Izumi, T. Sakamoto, M. Fujiwara, T. Yamashita, S. Miki, H. Terai, Z. Wang, and M. Sasaki
    • Organizer
      Conference on Laser and Electro Optics (CLEO 2015)
    • Place of Presentation
      San Jose, USA
    • Year and Date
      2015-05-10
    • Related Report
      2015 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 400Gbps対応超高速コヒーレント光計測技術と利用2015

    • Author(s)
      坂本高秀
    • Organizer
      科学技術振興機構新技術説明会
    • Place of Presentation
      JST東京,東京都,千代田区,市ヶ谷
    • Related Report
      2015 Annual Research Report
  • [Presentation] 電気光学効果型位相共役信号対生成器による光ファイバ非線形効果補償効果のバイアス依存性2015

    • Author(s)
      坂本高秀, 呂 國偉
    • Organizer
      電子情報通信学会光ファイバ技術研究会(OFT)
    • Place of Presentation
      三重大学,三重県,津市
    • Related Report
      2015 Annual Research Report
  • [Presentation] マルチキャリア信号コヒーレント整合受信器の整合条件に関する検討2015

    • Author(s)
      坂本高秀
    • Organizer
      電子情報通信学会光通信システム研究会(OCS)
    • Place of Presentation
      松山市民会館,愛媛県,松山市
    • Related Report
      2015 Annual Research Report
  • [Presentation] 光時間周波数サンプリングによる超高速コヒーレント光信号計測(招待講演)2015

    • Author(s)
      坂本高秀
    • Organizer
      第56回光波センシング技術研究会講演会
    • Place of Presentation
      東京理科大学,東京都,新宿区,神楽坂
    • Related Report
      2015 Annual Research Report
    • Invited

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Published: 2015-04-16   Modified: 2020-03-30  

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