Asynchronous transfer of individually addressable optical channels through a multimode fiber using phase conjugation

TL;DR

This paper demonstrates asynchronous optical channel transfer through multimode fibers using phase conjugation, enabling individual signal transfer in scattering media with a single spatial light modulator.

Contribution

It introduces a novel method for asynchronous transfer of multiple optical channels via phase conjugation with a single SLM, advancing multimode fiber imaging capabilities.

Findings

Successful demonstration of asynchronous channel transfer

Use of a single SLM with multiple windows for phase conjugation

Potential for improved imaging in scattering media

Abstract

Multimode fibers are attractive for a variety of applications such as internet data transfer, data center hubs, micromanipulation, optogenetics and other biomedical applications. A major hurdle for imaging through multimode fibers is the occurring scrambling, resulting in a randomization of light. Recently, clear imaging has been successfully accomplished using wavefront shaping, but the spatial information was transferred synchronously only. We demonstrate asynchronous information transmission using individual phase conjugations by employing only one spatial light modulator with multiple windows. Our findings pave the way towards individual signal transfer inside strongly scattering media.