Chirped Mirrors are a special type of dispersive laser mirrors with dispersion compensation functions, introducing a negative group delay dispersion (GDD) that attenuates pulse-lengthening when ultrafast pulses propagate in optics and facilitating the preservation of beam profile and peak power. Chirped mirrors consist of layers of varying thicknesses. Hangzhou Shalom EO offers chirped mirrors optimized for ultrafast lasers and femtosecond pulsed lasers.