Frequency-switching Coherent Reception for Hardware-efficient High-baud-rate Optical Transmission Experiments

TL;DR

This paper demonstrates a novel frequency-switching coherent reception method that enables high-baud-rate optical transmission at up to 288 GBaud without complex hardware, verified through experiments.

Contribution

It introduces a bandwidth scaling technique using signal gating and local-oscillator-frequency switching for efficient high-speed optical communication.

Findings

Achieved symbol rates of up to 288 GBaud in experiments.

Validated the effectiveness of frequency-switching coherent reception.

Showed potential for hardware-efficient high-baud-rate optical systems.

Abstract

Signal gating combined with local-oscillator-frequency switching enables bandwidth scaling of offline coherent reception without costly receiver parallelization. We experimentally verify this concept at symbol rates of up to 288 GBaud.