Sparsely repeated 21.7 Tb/s Net-Rate Transoceanic Transmission with 266 km Ultra-Long Spans Enabled by Low IMI and Low loss Hollow Core Fiber

TL;DR

This paper demonstrates high-capacity transoceanic fiber-optic transmission over 6660 km using ultra-long spans and a novel hollow core fiber design, reducing the number of repeaters needed.

Contribution

Introduction of a new hollow core fiber design enabling ultra-long spans and high-power transmission for efficient transoceanic data links.

Findings

Achieved 21.7 Tb/s over 6660 km with fewer than 30 repeaters.

Utilized a novel GTA-ST-HCF for improved performance.

Enabled high-power booster and adaptive channel rates for optimal transmission.

Abstract

We demonstrate 21.7-Tb/s net-rate transmission across 6660-km with 266-km ultra-long spans of HCF. By exploiting a newly designed GTA-ST-HCF, high-power booster, and adaptive channel rates, we realize WDM transoceanic transmission with fewer than 30 repeaters.