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Title:
OPTICAL FIBER AND OPTICAL COMMUNICATION SYSTEM CONTAINING SAME
Document Type and Number:
WIPO Patent Application WO/2013/129050
Kind Code:
A1
Abstract:
This optical fiber is provided with a central core, a side core and a cladding. The periphery of the central core includes a ring portion in which the relative refractive index difference changes discontinuously. Defining a as the radius from the core center to outside of the ring portion, and c as the radius up to the position where the relative refractive index difference is maximal in the side core, by realizing a refractive-index distribution of a shape in which c/a is 2.25 to 2.50, the variance value, cable cut-off wavelength, bending loss at a diameter of 20mm, and effective cross-sectional area can be configured in a desired range.

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WO/2020/004238MULTI-CLAD OPTICAL FIBER AND METHOD FOR MANUFACTURING SAME
Inventors:
YAMAMOTO YOSHINORI (JP)
Application Number:
PCT/JP2013/052754
Publication Date:
September 06, 2013
Filing Date:
February 06, 2013
Export Citation:
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Assignee:
SUMITOMO ELECTRIC INDUSTRIES (JP)
International Classes:
G02B6/036
Foreign References:
JP2002527774A2002-08-27
JP4393708B22010-01-06
JPH10293225A1998-11-04
Other References:
See also references of EP 2821822A4
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (JP)
Yoshiki Hasegawa (JP)
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Claims:



 
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