IEEE Kansai Section第50回技術講演会

IEEE Kansai Section第50回技術講演会
The 50th IEEE Kansai Section Lecture Meeting


IEEE Kansai Section will have the 50th IEEE Kansai Section Lecture Meeting as follows.



Synchronization of Chaos in Lasers and Neural Systems

 レーザー工学や脳科学の分野から、複雑な振動現象の解析とその応用 に関する最新の研究トピックスの紹介をしていただきます。  特に共通の課題として、 遅延結合を伴った多自由度の非線形振動 システムに現れる珍しい同期現象について解説をしていただきます。信号処理や情報理論の分野の方にも興味深い内容です。


・Prof. Ingo Fischer
 Professor, School of Engineering and Physical Sciences,  Heriot-Watt University, U.K.

・Dr. Claudio Mirasso
 Assistant Professor, Instituto de Fisica  Interdisciplinar y Sistemas Complejos,  Universitat de les Illes Balears, Spain

・Dr. Michael Breakspear
 Associate Professor, School of Psychiatry,  University of New South Wales, Australia

日時(Time & Date)

2008年9月8日(月) 16:30-18:30
Monday, September 8, 2008, 16:30-18:30











"Synchronization of Chaos in Lasers and Neurons "
           Prof. Fischer
"Chaos-based Communication Field Experiments in Europe"
           Dr. Mirasso
"Fluctuation and Synchronization in Brain Dynamics"
           Dr. Breakspear


(1)"Synchronization of Chaos in Lasers and Neurons " (Prof. Fischer)
   Lasers show rich dynamical behaviors which could be useful for applications such as optical sensing and secure optical communications, as well as providing a laboratory for exploring universal dynamical mechanisms which help us understand oscillatory behavior in neural systems. We present remarkable synchronization and correlation properties of various networks of coupled oscillators, including a case where the coupling signal shows neither correlation nor mutual information with the synchronized dynamics, and self-organization of zero time-lag synchronization among remote oscillators.

(2)"Chaos-based Communication Field Experiments in Europe"(Dr. Mirasso)
   Data transmission using chaotic optical carriers is being studied with the objective of realizing new methods to enhance security at high transmission rates in optical fiber networks. In this talk we explain the main characteristics of data transmission using chaotic optical carriers, including the synchronization and nonlinear filtering properties of receiver lasers. Objectives and achievements of the European projects OCCULT and PICASSO will be reviewed, including experimental results on Gbit/s message encryption/decryption over long distance (> 100 km) in the metropolitan area optical fiber network of Athens.

(3)"Fluctuation and Synchronization in Brain Dynamics"(Dr. Breakspear)
   We explain how stochastic fluctuations play a crucial role in large-scale neuronal activity and embody key cognitive processes such as uncertainty and ambivalence. And we show how nonlinear dynamics shape neural noise, with features manifest in large scale measures of brain activity, EEG and functional neuro-imaging. We also describe how information theoretic methods can be used to characterize dynamical connectivity in the brain, including multi-scale intermittent synchronization activity.


・Ingo Fischer
  Professor, School of Engineering and Physical Sciences Heriot Watt University, Edinburgh UK
  Ph. D. (Physics), Technical University of -Darmstadt (Germany)
<Research Interests>
  nonlinear photonics and dynamics, experimental laser physics, dynamics and coherence of semiconductor lasers, dynamics of coupled lasers, high-dimensional, spatio-temporal systems, delay-coupled network systems
<Recent Projects>
  [1] European Union Project "OCCULT" 2001-2004 ("Optical Chaos Communications Using Laser Diode Transmitters", IST-2000-29683)
  [2] European Union Project "PICASSO", 2006-2009 ("Photonic integrated components applied to secure chaos encoded optical communications systems", IST-2005-34551).

・Claudio R. Mirasso
  Assistant Professor, Univ. de las Islas Baleares, Palma de Mallorca, Spain
  Ph. D. (Physics) Universidad Nacional de La Plata (Buenos Aires, 1989)
<Research Interests>
  Nonlinear Photonics, Dynamics and coherence of semicoductor lasers and applications. Chaotic itinerancy, synchronization. Dynamical effects of Delayed-feedback and injection. Mutually coupled lasers. Stochastic resonance. Noise-induced synchronization.
<Recent Projects>
  [1] Principal Investigator: European Union Project "OCCULT" 2001-2004 ("Optical Chaos Communications Using Laser Diode Transmitters", IST-2000-29683),
  [2] Principal Investigator: European Union Project "PICASSO", 2006-2009 ("Photonic integrated components applied to secure chaos encoded optical communications systems", IST-2005-34551).

・Michael Breakspear
  Associate Professor,School of Psychiatry, University of New South Wales
  MB BS, PhD, Univ. Sydney (Sydney, 2001)
<Research Interests>
  nonlinear neuroscience, mathematical models of dynamics of large-scale neural systems, testing the theories through functional neuroscience experiments and using these to understand cognitive, perceptual and psychotic processes, dynamic synchronization in arrays of coupled nonlinear systems, analysis of nonlinear interdependence in noisy time series data.
<Current Research Projects>
  The Brain Network Recovery Group ( An international team with US$4 million grant to study the ability of the brain to rewire after damage caused by Alzheimer's Disease and other types of dementia, stroke, tumours and infection. (James S. McDonnell Foundation 21st Century Science Initiative in Bridging Brain, Mind and Behaviour)

参加費 (Fee)

無料 Free

参加申込み先 (Contact for registration)

   小坂 有香子
   Yukako Kosaka (NTT Communication Science Laboratories)
   NTT コミュニケーション科学基礎研究所
   メディア情報研究部 信号処理研究グループ
   Tel: (0774) 93-5518   Fax: (0774)93-5158
   E-mail: yukako-kアット
 会場準備の都合上、参加ご希望の方は、9月2日(火)までに、以下の情報を参加申し込み先まで Email(Faxでも結構です)にてお知らせください。

  • ご所属
  • お名前(ふりがな)
  • IEEE会員番号(会員の場合)
 Please register in advance. E-mail or fax IEEE member ID, your name and affiliation by September 2, 2008 (Tuesday).

本件連絡先 (For further information)

   IEEE Kansai Section Technical Program Committee Chair
   三好 正人(NTT コミュニケーション科学基礎研究所)


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