Thorlabs offers several types of ultrafast optics for use with femtosecond and picosecond pulsed lasers. Our Low Group Delay Dispersion (GDD) mirrors are optimized for low dispersion and >99% reflectance when used with Ti:Sapphire, Ytterbium (Yb), Neodymium (Nd), Thulium (Tm), or Holmium (Ho) lasers. The Dual-Band Dielectric Mirror has a specialty coating that maximizes the reflectance of the mirror at both 400 nm and 800 nm. For Yb lasers, we offer high-power mirrors featuring dielectric coatings with high laser damage threshold values. Mirrors with ultrafast-enhanced silver coating are offered in addition to our protected silver mirrors and unprotected gold plano mirrors. Low-GDD beamsplitters are available with coatings for broadband operation, Ti:Sapphire and Yb harmonics, or Yb lasers. Chirped mirrors and dispersion compensation prism pairs are designed specifically to compensate for the pulse broadening effects that occur in ultrafast laser systems.