# Multi-pass oscillator layout for high-energy mode-locked thin-disk lasers

Source: [Multi-pass oscillator layout for high-energy mode-locked thin-disk lasers](<https://www.sota2.com/research/paper/68fa33651e209131ce88fe35>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-24T20:02:45.256Z

Authors: K. Schuhmann, K. Kirch, A. Antognini

Published: 2016-03-01T18:57:52.000Z

## Abstract

A novel optical layout for a multi-pass resonator is presented paving the way for pulse energy scaling of mode-locked thin-disk lasers. The multi-pass resonator we are proposing consists of a concatenation of nearly identical optical segments. Each segment corresponds to a round-trip in an optically stable cavity containing an active medium exhibiting soft aperture effects. This scheme is apt for energy and power scaling because the stability region of this multi-pass resonator contrarily to the 4f-based schemes does not shrink with the number of passes. Simulation of the eigen-mode of this multi-segment resonator requires considering aperture effects. This has been achieved by implementing effective Gaussian apertures into the ABCD-matrix formalism as lenses with imaginary focal length. We conclude proposing a simple way to double the stability region of the state-of-the-art layouts used in industry achievable by a minimal rearrangement of the used optical components.

## Recorded benchmark results

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1603.00404>)

[PDF](<https://arxiv.org/pdf/1603.00404.pdf>)