Title:
OPTICAL COMMUNICATION SYSTEM, LIGHT TRANSMISSION DEVICE, LIGHT RECEPTION DEVICE AND METHOD, AND OPTICAL CORRELATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2010/002041
Kind Code:
A1
Abstract:
A complex orthogonal code uses as a code word, each row of a square matrix of N rows × N columns in which the element on the m-th row and the n-th column is exp (2πj(m-1) (n-1)/N) (j is an imaginary number unit). The optical orthogonal code for optical code division multiplex communication/optical code division multiplex connection (OCDM/OCDMA) is realized by N optical pulse columns corresponding to a deviation angle (phase) of the aforementioned code element. The light transmission device or the light reception device includes an optical correlation device equipped with a sampling Bragg grating having a plurality of Bragg gratings arranged in series at a predetermined interval in an optical waveguide. Any one of the code words is allocated to the optical correlation device. In the light transmission device, an optical signal to be transmitted is encoded by the optical correlation device. In the light reception device, a reception optical signal is decoded by the optical correlation device. A high self-correlation output can be obtained only when the code word encoded by the reception optical signal coincides with the code word allocated to the light reception device.
Inventors:
HANAWA MASANORI (JP)
Application Number:
PCT/JP2009/062567
Publication Date:
January 07, 2010
Filing Date:
July 03, 2009
Export Citation:
Assignee:
UNIV YAMANASHI (JP)
HANAWA MASANORI (JP)
HANAWA MASANORI (JP)
International Classes:
G02F1/01; G02F3/00; H04B1/707; H04B10/00; H04J13/18; H04J14/00; H04J14/04; H04J14/06
Domestic Patent References:
| WO2006130742A1 | 2006-12-07 |
Foreign References:
| JP2007088859A | 2007-04-05 |
Other References:
MASANORI HANAWA ET AL.: "SSFBG-gata Sokanki o Mochiita OCDM Loop Back Denso no BER Tokusei", NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU, 5 March 2008 (2008-03-05), pages 387
YASUHIRO OKAMURA ET AL.: "FBG-gata Fugo Kahen Fugoki . Fukugoki Mochiita Hikari Fugo Bunkatsu Taju no Ichikento", IEICE TECHNICAL REPORT, June 2004 (2004-06-01), pages 61 - 66
MASANORI HANAWA: "Fourier Fugo: OCDM/OCDMA no Tameno Atarashii Taso Chokko Fugo", PROCEEDINGS OF THE SOCIETY CONFERENCE 2008 OF IEICE 2, - 2 September 2008 (2008-09-02), pages 218
MASANORI HANAWA: "Fourier Fugo o Mochiita OCDM/OCDMA no Tagen Setsuzoku Kansho", NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU, 4 March 2009 (2009-03-04), pages 379
MASANORI HANAWA: "Fourier code:a novel orthogonal code for OCDM systems", OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE, 2008 AND THE 2008 AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY. OECC/ACOFT 2008. JOINT CONFERENCE, - 7 July 2008 (2008-07-07)
YASUHIRO OKAMURA ET AL.: "FBG-gata Fugo Kahen Fugoki . Fukugoki Mochiita Hikari Fugo Bunkatsu Taju no Ichikento", IEICE TECHNICAL REPORT, June 2004 (2004-06-01), pages 61 - 66
MASANORI HANAWA: "Fourier Fugo: OCDM/OCDMA no Tameno Atarashii Taso Chokko Fugo", PROCEEDINGS OF THE SOCIETY CONFERENCE 2008 OF IEICE 2, - 2 September 2008 (2008-09-02), pages 218
MASANORI HANAWA: "Fourier Fugo o Mochiita OCDM/OCDMA no Tagen Setsuzoku Kansho", NEN THE INSTITUTE OF ELECTRONICS, INFORMATION AND COMMUNICATION ENGINEERS SOGO TAIKAI KOEN RONBUNSHU, 4 March 2009 (2009-03-04), pages 379
MASANORI HANAWA: "Fourier code:a novel orthogonal code for OCDM systems", OPTO-ELECTRONICS AND COMMUNICATIONS CONFERENCE, 2008 AND THE 2008 AUSTRALIAN CONFERENCE ON OPTICAL FIBRE TECHNOLOGY. OECC/ACOFT 2008. JOINT CONFERENCE, - 7 July 2008 (2008-07-07)
Attorney, Agent or Firm:
USHIKU, Kenji et al. (4-5 Shimbashi 3-chome, Minato-ku, Tokyo 04, JP)
Download PDF:
Previous Patent: CHARGING SYSTEM AND BATTERY PACK
Next Patent: ENZYME SUBSTRATE FOR LABELING OF PROTEIN
Next Patent: ENZYME SUBSTRATE FOR LABELING OF PROTEIN