Related Experiment Video
Updated: May 8, 2026
09:43
Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
Published on: March 20, 2017
409-Tb/s + 409-Tb/s crosstalk suppressed bidirectional MCF transmission over 450 km using propagation-direction
Akihide Sano1, Hidehiko Takara, Takayuki Kobayashi
1NTT Network Innovation Laboratories, NTT Corporation, 1-1 Hikari-no-oka, Yokosuka, Kanagawa 239-0847 Japan. sano.akihide@lab.ntt.co.jp
Optics Express
|August 14, 2013
Summary
Researchers achieved 409 Tb/s bidirectional transmission using a new 12-core fiber. This dual-ring fiber minimizes crosstalk for high-capacity optical communication systems.
Area of Science:
- Optical communications
- Materials science
Background:
- High-capacity optical fiber transmission is crucial for modern networks.
- Minimizing inter-core crosstalk in multi-core fibers is a key challenge.
Purpose of the Study:
- To demonstrate bidirectional transmission over a novel dual-ring structured 12-core fiber.
- To achieve high data capacities with suppressed crosstalk.
Main Methods:
- Development of a new dual-ring structured 12-core fiber with large effective area.
- Implementation of propagation-direction interleaving to suppress inter-core crosstalk.
- Bidirectional transmission testing over 450 km of the developed fiber.
Main Results:
- Successful bidirectional transmission over 450 km of the 12-core fiber.
- Achieved aggregate capacities of 409 Tb/s in both directions.
- Demonstrated effective suppression of inter-core crosstalk.
Conclusions:
- The newly-developed dual-ring structured 12-core fiber enables high-capacity, low-crosstalk optical transmission.
- Propagation-direction interleaving is an effective method for crosstalk mitigation in multi-core fibers.
- This technology advances the potential for future high-speed communication networks.
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