Japanese large-core single-mode optical fiber

A group of researchers from the National Institute of Information and Communications Technology (NICT, Japan) and Sumitomo Electric Industries, Ltd. (SEI, Japan) in collaboration with the Eindhoven Un...

Jun 10, 2026

Novel 19-Core Fiber Hits 1.7 Petabits per Second

Researchers in Japan and Australia have developed a new multicore optic fiber able to transmit a record-breaking 1.7 petabits per second, while maintaining compatibility with existing fiber

Dec 18, 2025

Sumitomo Electric and NICT Develop the World''s First 19-core Optical

This time, Sumitomo Electric has realized a randomly coupled multi-core optical fiber with 19 cores, the world''s largest number of cores for a standard outer diameter optical fiber, by

Feb 13, 2026

Large-core Fibers – multimode, single-mode, effective mode area

With standard fibers, you trade large mode areas for single-mode operation. With our large mode area fibers, you get single-mode operation in a wide range of wavelengths.

Jan 21, 2026

Japan sends 1 million GB of data across 1,100 miles in a second

Imagine downloading 10,000 4K movies in just a second. A team of Japanese researchers has achieved such a mind-blowing internet speed using a specially designed optical

Jan 24, 2026

Sumitomo Electric and NICT Develop the World''s First

This time, Sumitomo Electric has realized a randomly coupled multi-core optical fiber with 19 cores, the world''s largest number of cores for a standard

Jun 26, 2026

World Record Achieved in Transmission Capacity and

The experiment used a specially designed 19-core optical fiber with a standard 0.125 mm cladding diameter, compatible with existing fiber infrastructure.

Oct 12, 2025

World''s first standard cladding diameter 19-core optical fiber with

In this research, SEI designed and fabricated a randomly coupled 19-core fiber with a standard cladding-diameter, and NICT constructed a transmission system to demonstrate the maximum capabilities of

Apr 12, 2026

Optical Fibers | Telecommunication Systems Business Unit

We offer fiber with excellent mechanical properties and low macro bending loss, ideal for tight indoor cabling and compact equipment installations. It also features reduced OH absorption at 1383 nm,

Aug 06, 2025

Petabit Power Unleashed: Japan''s 19-Core Fiber Sends

For the first time, a research team has successfully transmitted over one petabit per second across more than 1,000 kilometers using a standard 19-core optical fiber.

Sep 15, 2025

Japanese researchers shatter internet speed record with fiber optic

Breakthrough uses 19-core optical fiber, matching current cable thickness but with 19x the capacity. Technology maintains speed over 1,120 miles, solving long-distance signal loss with

Mar 19, 2026

NICT and Sumitomo Electric Set World Record: 1.02 Pbps

The experiment used a specially designed 19-core optical fiber with a standard 0.125 mm cladding diameter, compatible with existing fiber infrastructure. With a capacity-distance product of

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