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Title:
LIGHT DISPERSION COMPENSATING ELEMENT AND COMPOSITE TYPE LIGHT DISPERSION COMPENSATING ELEMENT USING THAT ELEMENT AND LIGHT DISPERSION COMPENSATING METHOD USING THAT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2002/031542
Kind Code:
A1
Abstract:
A signal transmitted over an optical fiber has hitherto undergone wavelength dispersion to cause a large communication trouble in optical communication with a communication bit rate of at least 10 Gbps, especially at least 40 Gbps. A composite type light dispersion compensating element is formed that contains light dispersion compensating elements in each of which a reflector or a multi-layer film element is disposed at and opposite to an incidence surface of a multi-layer film element capable of dispersion compensating by using group speed delay time-wavelength characteristics, and a plurality of elements capable of dispersion compensating are series-connected to realize a light dispersion compensating element having group speed delay time-wavelength characteristics large in band width and in pole of group speed delay time. Therefore, dispersion compensation is possible based on each channel as well as a plurality of channels.

Inventors:
YAMASHITA SHIRO (JP)
HIGASHI NOBORU (JP)
Application Number:
PCT/JP2001/008978
Publication Date:
April 18, 2002
Filing Date:
October 12, 2001
Export Citation:
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Assignee:
OYOKODEN LAB CO LTD (JP)
YAMASHITA SHIRO (JP)
HIGASHI NOBORU (JP)
International Classes:
G02B5/28; G02B6/34; H04B10/2507; G02B5/26; H04B10/2525; H04B10/40; H04B10/50; H04B10/60; (IPC1-7): G02B5/08; H04B10/18; G02B27/00
Foreign References:
JP2001352293A2001-12-21
JP2001320328A2001-11-16
JP2001305339A2001-10-31
JP2001305338A2001-10-31
JP2001251004A2001-09-14
JP2001251246A2001-09-14
JP2000138407A2000-05-16
JP2000221555A2000-08-11
JP2000352614A2000-12-19
JPH0223302A1990-01-25
US5734503A1998-03-31
JPH1048567A1998-02-20
JP2000105313A2000-04-11
Attorney, Agent or Firm:
Shiga, Masatake (23-3 Takadanobaba 3-chome Shinjuku-ku, Tokyo, JP)
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