Demonstration of Beyond Terabit/s/lambda Nonlinearity-free Transmission over the Hollow-core Fibre

TL;DR

This paper demonstrates a novel hollow-core fiber system enabling high-capacity, nonlinearity-free optical transmission with lower latency, surpassing traditional single-mode fiber performance in capacity and speed.

Contribution

It introduces a hollow-core fiber-based transmission method that achieves higher capacity and lower latency compared to standard single-mode fibers, with experimental validation.

Findings

~17.4% higher capacity than SMF-based loop

HCF exhibits ~1.6 μs/km lower latency

Effective nonlinearity-free transmission at Terabit/s/lambda

Abstract

We demonstrate nonlinearity-free transmission of Terabit/s/lambda PCS-64QAM signals through an HCF-based optical recirculating loop, which yields ~17.4% higher capacity than SMF-based loop under 23-dBm launch power (~13.5 dBm/channel) after 25 loops. Both lab experiment and field trial show HCF exhibits ~1.6-us/km lower latency than SMF.