Work

Spherical aberration compensation in Nd:YVO 4 amplifiers

Year: 2026

Type: article

Abstract: laser amplifier was compensated using a custom-designed optical plate shaped according to the Zernike polynomial for spherical aberration. Wavefront measurements performed with a Shack-Hartmann sensor were applied to a 976 nm probe beam, unaffected by amplification, and the 1064 nm signal beam. Identical wavefront distortions and an effective compensation by the compensation plates were observed in both cases, confirming that the aberration originates solely from thermal lensing. This validates the probe beam as a reliable diagnostic tool and demonstrates the effectiveness of the compensation plate in restoring wavefront quality.

Source: Optics Express

DOI: 10.1364/oe.592520

Authors: Merle Schneewind, Stefan Spiekermann, Peter Wessels, Jörg Neumann, Dietmar Kracht

Institution: Laser Zentrum Hannover

Language: English

Topic: Solid State Laser Technologies

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,270

Funder: Deutsche Forschungsgemeinschaft