Furukawa Electric: Low crosstalk multi-core fiber: -60dB / 100km or less
Furukawa Electric and KDDI:
Succeeded in developing a low-crosstalk multi-core fiber with the world’s smallest transmission loss as part of research commissioned by the Ministry of Internal Affairs and Communications (Furukawa Electric)
With each of the four independent cores, at a distance beyond the Pacific Ocean
Succeeded in optical fiber transmission of ultra-high-speed optical signals (KDDI R & D Laboratories)
Multi-core fiber (MCF):
The same shape as a normal optical fiber.
A fiber in which an optical fiber “implements multiple number of propagating cores”.
The MCF developed this time is equipped with four cores.
It can transmit four times the capacity of ordinary optical fibers.
Realization of the world’s smallest loss:
By optimizing the fiber structure and manufacturing method
Equivalent to ordinary optical fiber for submarine transmission,
Among the low crosstalk MCF
Achieves the world’s smallest loss of 0.155 dB / km.
Succeeded in developing MCF that also ensured low crosstalk of -60dB / 100km or less.
Mobile Watch
https://k-tai.watch.impress.co.jp/docs/news/1292008.html
Developed the world’s smallest low-crosstalk multi-core fiber with reduced transmission loss | KDDI R & D Laboratories, Inc.
https://www.kddi-research.jp/newsrelease/2020/113001.html
https://www.furukawa.co.jp/release/2020/kenkai_20201130.html