Title:
OPTICAL FIBER, OPTICAL FIBER TRANSMISSION PATH, AND SPLICING METHOD OF OPTICAL FIBER TRANSMISSION PATH
Document Type and Number:
Japanese Patent JP2015007710
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an optical fiber having an MFD smaller than 9.0 μm and an optical fiber transmission path, capable of more accurately measuring splice loss by performing an OTDR measurement from one direction even if the optical fiber are intermingled in a transmission path mainly constituted by optical fibers compliant with ITU-T G.652 standard having an MFD of 9.0 to 9.2 μm at 1310 nm, and to provide a splicing method of the optical fiber transmission path.SOLUTION: An optical fiber comprises a core and a cladding surrounding the core. A refractive index of the core is higher than a refractive index of the cladding. An MFD at a 1310 nm wavelength is smaller than 9.0 μm, and a cable cutoff wavelength is shorter than 1260 nm. A bending loss in applying a ten-turn bending of a 15 mm radius thereto is maximum 0.25 dB at a 1550 nm wavelength and maximum 1 dB at a 1625 nm wavelength. A transmission loss at a 1310 nm wavelength is 0.32 dB/km or less.
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Inventors:
GOTO RYUICHIRO
Application Number:
JP2013132665A
Publication Date:
January 15, 2015
Filing Date:
June 25, 2013
Export Citation:
Assignee:
FUJIKURA LTD
International Classes:
G02B6/02
Attorney, Agent or Firm:
Masatake Shiga
Sumio Tanai
Igarashi Mitsunaga
Toshio Komuro
Spring water Yuichiro
Sumio Tanai
Igarashi Mitsunaga
Toshio Komuro
Spring water Yuichiro
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