Feder, RenéRenéFederPatzig, ChristianChristianPatzigSturzenegger, ChristophChristophSturzeneggerSchachtler, DanielDanielSchachtlerHöche, ThomasThomasHöche2026-03-242026-03-2420259781957171449https://publica.fraunhofer.de/handle/publica/51247110.1364/oic.2025.the.22-s2.0-105014328628Optical components for laser applications face increasing requirements on long-term and high-power stability. Understanding the root causes of damage is crucial for further improvements. The benefits of in-depth microstructure analysis are illustrated using selected results.enfalseconference paper