# 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.

## Key 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.

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Source: https://tomesphere.com/paper/1901.00472