Why is #GroupDelayDispersion (GDD) a critical consideration in the design of #coatings for laser mirrors, particularly for #ultrafast, high-energy #laser systems? How does GDD affect laser performance and the complexities involved in optimizing mirror coatings for superior #reflectivity, #bandwidth, and durability? Learn the answers to these and other questions: https://ilphotonics.com/what-is-group-delay-dispersion/