Gain-Embedded Meta Mirrors for Optically Pumped Semiconductor Disk Lasers

TL;DR

This paper introduces a gain-embedded meta mirror structure combining a subwavelength grating with optical gain, enabling efficient heat removal and power scaling for high-power optically pumped semiconductor disk lasers.

Contribution

It presents a novel active mirror design with integrated thermal management, suitable for high-power laser applications.

Findings

The structure supports multi-kilowatt CW power operation.

Optical and thermal analyses confirm effective heat dissipation.

Design is compatible with direct bonding to thermal substrates.

Abstract

We propose and analyze an active mirror structure that uses a subwavelength grating reflector combined with optical gain. The structure is designed to be directly bonded to a thermal substrate (such as diamond) for efficient heat removal. We present optical wave propagation and thermal transport analysis and show that such a structure is well suited for power scaling of optically pumped semiconductor disk lasers to multi-kilowatt CW power operation.