Phase and amplitude pre-shaping for a high-power ps-wedged thin-disk amplifier
Abstract
Wedged thin-disk amplifiers offer a compact, monolithic alternative to conventional thin-disk multipass systems. As a trade-off, the wedged shape inherently introduces complex thermal lensing and phase distortions, degrading beam quality at high output powers. We demonstrate a spatial light modulator based adaptive phase and amplitude correction system for pre-compensation of aberrations. Utilizing the large acceptance angle of the wedged thin-disk, the adaptive element can be introduced before the optical amplification. Starting with M ² ≃ 1.2 at 25 W, we obtain near diffraction limited beam quality M ² = 1.3 for 150 W of output power, estimate a good beam quality (M ² < 2) for up to 250 W, and reach up to 330 W of average power. This demonstrates the readiness of the technology for modern industrial and scientific applications.
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BibTeX
@article{schweizer2026phase,
title = {{Phase and amplitude pre-shaping for a high-power ps-wedged thin-disk amplifier}},
author = {Pirmin Schweizer and Raoul-Amadeus Lorbeer and Jochen Speiser and Thomas Dekorsy},
journal = {Optics Express},
year = {2026},
month = oct,
doi = {10.1364/oe.613864},
url = {https://opg.optica.org/abstract.cfm?URI=oe-34-21-40240},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Phase and amplitude pre-shaping for a high-power ps-wedged thin-disk amplifier
AU - Pirmin Schweizer
AU - Raoul-Amadeus Lorbeer
AU - Jochen Speiser
AU - Thomas Dekorsy
PY - 2026
DA - 2026/10/14
JO - Optics Express
DO - 10.1364/oe.613864
UR - https://opg.optica.org/abstract.cfm?URI=oe-34-21-40240
AB - Wedged thin-disk amplifiers offer a compact, monolithic alternative to conventional thin-disk multipass systems. As a trade-off, the wedged shape inherently introduces complex thermal lensing and phase distortions, degrading beam quality at high output powers. We demonstrate a spatial light modulator based adaptive phase and amplitude correction system for pre-compensation of aberrations. Utilizing the large acceptance angle of the wedged thin-disk, the adaptive element can be introduced before the optical amplification. Starting with M ² ≃ 1.2 at 25 W, we obtain near diffraction limited beam quality M ² = 1.3 for 150 W of output power, estimate a good beam quality (M ² < 2) for up to 250 W, and reach up to 330 W of average power. This demonstrates the readiness of the technology for modern industrial and scientific applications.
SN - 1094-4087
ER -