Coherently combined 16 channel multicore fiber laser system

TL;DR

This paper demonstrates a compact 16-channel multicore fiber laser system that coherently combines beams to achieve high power and efficiency, showcasing a promising approach for scalable laser sources.

Contribution

It introduces a novel, low-component-count setup for coherent beam combination from multicore fiber lasers, achieving high power and efficiency in a compact form.

Findings

Achieved 70 W average power with 40 ps pulses

Combination efficiency around 80%

Demonstrated a compact, low-component-count design

Abstract

We present a coherently combined laser amplifier with 16 channels from a multicore fiber in a proof-of-principle demonstration. Filled aperture beam splitting and combination together with temporal phasing is realized in a compact and low-component-count setup. Combined average power of up to 70 W with 40 ps pulses are achieved with combination efficiencies around 80%.