Faculty Members


Professor IWASHITA Katsushi

Year of birth 1955 Gender Male
Affiliation School of Systems Engineering
Electronic and Photonic Systems Engineering Course, Department of Engineering, Graduate School of Enginering
Job titles
Personal web site

Areas of specialization
Laboratory/research office Light Control and Optical Network Laboratory
We study ultrahigh capacity optical networks using Multiple-Input Multiple-Output (MIMO) technology and high precision non-invasive optical measurement techniques including optical coherence tomography (OCT) and fiber sensing.
Current reseach topics
Educational background 1979: Master
Professional background 1979-2004: 
Academic societies

Courses  * Courses provided in English are shown with (E) mark

Undergraduate school ▼

Introduction to Electromagnetic and Optical Waves
Experiments of Electronic and Photonic 1
Experiments of Electronic and Photonic 2
Graduation Thesis
Optical Communication Systems
Introduction to Communication Instruments
Networking Methods
Electrical Communication Laws

Graduate school ▼

Optical Communication Engineering
Seminar 1
Seminar 2
Individual Work for Graduate
Advanced Seminar 1
Advanced Seminar 2

Research activities

Research papers ▼

  1. Authors: Badar Mudabbir, KOBAYASHI Hirokazu, IWASHITA Katsushi
    Title: Demonstration of format free wavelength conversion for optical networks
    Journal: Optical and Quantum Electronics, Vol. 48, No. 1, Springer
    Year: 2016/01/01
  2. Authors: Badar Mudabbir, KOBAYASHI Hirokazu, IWASHITA Katsushi
    Title: Chromatic dispersion measurement with double sideband phase noise canceled OFDR
    Journal: Optics Communications, Vol. 356, pp. 350-355
    Year: 2015/12
  3. Authors: Hiroyuki Mima, IWASHITA, Katsushi
    Title: Dual-Channel Simultaneous Wavelength Conversion With OSSB Modulator and AWG
    Journal: IEEE Photonics Technology Letters, Vol. 26, No. 14, pp. 1462-1465, IEEE
    Year: 2014/07/15
  4. Authors: Badar Mudabbir, Takuya Hino, IWASHITA, Katsushi
    Title: Phase Noise Cancelled OFDR With cm-Level Spatial Resolution Using Phase Diversity
    Journal: IEEE Photonics Technology Letters, Vol. 26, No. 9, pp. 858-856, IEEE
    Year: 2014/05/01
  5. Authors: ZHANG Yang, Junya Matsushita, Tomoyasu Nishimori, IWASHITA, Katsushi
    Title: SCM-SS scheme for optical MIMO transmission using multimode fibers
    Journal: Communication Express, Vol. 2, No. 6, pp. 268-273, IEICE
    Year: 2013/06/24
  6. Authors: 平松 秀太, IWASHITA, Katsushi
    Title: A Novel Phase-Noise Cancelled Optical Frequency Domain Reflectometry using Modulation Sidebands
    Journal: Photonics and Optoelectronics(P&O), Vol. 1, No. 3, pp. 60-64, Photonics and Optoelectronics
    Year: 2012/10/30
  7. Authors: Jing Liang, IWASHITA, Katsushi
    Title: A Novel Compensation Method for FWM Impaiments based on Cancellation by Estimated Components in Digital Coherent Detection
    Journal: IEEE Photonics Technology Letters, Vol. 23, No. 19, pp. 1394-1396, IEEE
    Year: 2011/09/14
  8. Authors: Liang Jing, IWASHITA, Katsushi
    Title: FWM Compensation in DPSK Transmission by Reducing Detection with Digital Coherent Detection Using Backward Propagation
    Journal: international Journal of Information and Electronics engineering, Vol. 1, No. 1, pp. 99-104
    Year: 2011/07/01
  9. Authors: LIANG Jing, Katsushi Iwashita
    Title: Experimental compensation for FWM induced crosstalk with digital coherent detection
    Journal: IEICE transaction on communications, Vol. E94-B, No. 2, pp. 558-561
    Year: 2011/02/01
  10. Authors: Jing Liang, IWASHITA, Katsushi
    Title: Inter-Channel FWM Impaiments Compensation of ASK Transmission with Digital Coherent Detection
    Journal: ECOC2010, No. P3.04
    Year: 2010/09/22
  11. Authors: J. Liang, K. Iwashita
    Title: Electrical Compensation of FWM Impairment by Heterodyne Detection Using Backward Propagation
    Journal: OECC TuK6
    Year: 2009
  12. Authors: K.Iwashita, K.Nakajima
    Title: Parameter estimation for adaptive electrical equalization of multimode-fiber dispersion using sub-carrier multiplexing scheme
    Journal: OECC ThP-92
    Year: 2008
  13. Authors: K.Nakatsuma, K.Iwashita
    Title: Performance evaluation and experimental demonstration of optical frequency converter based on optical SSB modulator and Mach-Zehnder interferometer
    Journal: OECC, ThP-78
    Year: 2008
  14. Authors: K.Iwashita, K.Nakajima
    Title: Digitally Tunable Optical Frequency Converter based on Optical SSB Modulators and Mach –Zehnder Interferometers
    Journal: in Proc.OFC/in Proc.OFC/NFOEC2007, JWA56, Anaheim
    Year: 2007
  15. Authors: K.Nakajima, K.Iwashita
    Title: Electrical Equalization of Multipath Interferences using Subcarrier Multiplexing of a Single Frequency Light Source
    Journal: in Proc. LEOS annual meeting 2006, TuCC2, Montreal
    Year: 2006
  16. Authors: I.Yamasaki, R.Kawamura, K.Iwashita
    Title: A Profit Maximization Scheme by Service-list Control for Multiple Class Services
    Journal: IEICE Japan Network 2004, Vol. E87-B, No. 5, p. 1334
    Year: 2004
  17. Authors: K.Iwashita, T.Matsumoto
    Title: Modulation and detection characteristics of optical contiguous phase FSK transmission systems
    Journal: IEEE Journal of Lightwave Technologies, Vol. LT-5, No. 4
    Year: 1987

Keynote lectures ▼

Invited lectures ▼

Notable projects ▼

Awards ▼

Patents ▼

Grants-in-Aid for Scientific Research from the Japanese government ▼

Competitive research funds ▼

Social activities

Committee roles ▼

  1. IEEE Japan Council History Committee , IEEE, 2015-2016
  2. IEEE Japan Council History Committee, IEEE, 2013-2014
  3. The 15th Asia-Pacific Network Operation and Management Symposium(APNOMS2013) Technical Program Committee, Asia-Pacific Network Operations and Management Symposium(APNOMS) , 2013-2014

Published books ▼

  1. Coherent Lightwave Communications Technologies, Chapman&Hall, 1995