Multicore fiber

Yusuke Sasaki (Inventor), Katsuhiro Takenaga (Inventor), Kunimasa Saitoh (Inventor), Toshio Morioka (Inventor)

Research output: Patent

53 Downloads (Pure)


Provided is a multicore fiber containing a plurality of cores, wherein when the multicore fiber is bent to form a curve with a diameter of 280 mm, the optical propagation loss in a mode one order higher than an optical mode used for information transmission in the optical wavelength band used for the information transmission is set between 1 dB/m and 0.02 dB/m inclusive. Thus, unnecessary light in a higher order mode can be sufficiently attenuated within propagation of 1 km. Thereby, even if unnecessary light is created in a higher order mode at a contact point between fibers, the unnecessary light in the higher order mode can be sufficiently attenuated before the next contact point.
Original languageEnglish
IPCG02B6/02; G02B6/036
Patent numberWO2017159385
Filing date21/09/2017
Country/TerritoryInternational Bureau of the World Intellectual Property Organization (WIPO)
Priority date17/03/2017
Priority numberJP20160054378
Publication statusPublished - 2017

Bibliographical note

Also published as: CN108474903 (A) JPWO2017159385 (A1)


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