(19)
(11) EP 0 862 284 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
31.08.2005 Bulletin 2005/35

(45) Mention of the grant of the patent:
29.06.2005 Bulletin 2005/26

(21) Application number: 97116075.9

(22) Date of filing: 16.09.1997
(51) International Patent Classification (IPC)7: H04B 10/18

(54)

Optical transmission system

Optisches Übertragungssystem

Système de transmission optique

(84) Designated Contracting States:
DE FR GB IT

(30) Priority: 27.02.1997 JP 4440697

(43) Date of publication of application:
02.09.1998 Bulletin 1998/36

(73) Proprietor: FUJITSU LIMITED
Kanagawa 211-8588 (JP)

(72) Inventors:
  • Miyauchi, Akira
    Nakahara-ku, Kawasaki-shi, Kanagawa 211 (JP)
  • Yamane, Kazuo
    Nakahara-ku, Kawasaki-shi, Kanagawa 211 (JP)
  • Kawasaki, Yumiko
    Nakahara-ku, Kawasaki-shi, Kanagawa 211 (JP)
  • Okano, Satoru
    Nakahara-ku, Kawasaki-shi, Kanagawa 211 (JP)

(74) Representative: von Fischern, Bernhard et al
Hoffmann - Eitle, Patent- und Rechtsanwälte, Arabellastrasse 4
81925 München
81925 München (DE)


(56) References cited: : 
US-A- 5 606 445
   
  • HENMI N ET AL: "PRECHIRP TECHNIQUE AS A LINEAR DISPERSION COMPENSATION FOR ULTRAHIGH-SPEED LONG-SPAN INTENSITY MODULATION DIRECTED DETECTION OPTICAL COMMUNICATION SYSTEMS" JOURNAL OF LIGHTWAVE TECHNOLOGY,US,IEEE. NEW YORK, vol. 12, no. 10, 1 October 1994 (1994-10-01), pages 1706-1719, XP000469524 ISSN: 0733-8724
  • ISHIKAWA G ET AL: "10-GB/S REPEATERLESS TRANSMISSION USING STANDARD SINGLE-MODE FIBER WITH PRE-CHIRPING AND DISPERSION COMPENSATION TECHNIQUES" IEICE TRANSACTIONS ON ELECTRONICS,JP,INSTITUTE OF ELECTRONICS INFORMATION AND COMM. ENG. TOKYO, vol. E78-C, no. 1, 1995, pages 43-49, XP000495082 ISSN: 0916-8524
  • GNAUCK A H ET AL: "DISPERSION PENALTY REDUCTION USING AN OPTICAL MODULATOR WITH ADJUSTABLE CHIRP" IEEE PHOTONICS TECHNOLOGY LETTERS,US,IEEE INC. NEW YORK, vol. 3, no. 10, 1 October 1991 (1991-10-01), pages 916-918, XP000226063 ISSN: 1041-1135
  • N.HENMI: "10-Gb/s, 100km normal fiber transmission experiment employing a modified prechirp technique" TECHNICAL DIGITAL CONFERENCE ON FIBER COMMUNICATION '91, no. TuO2, SAN DIEGO
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).