Once the Ultra-short laser pulses is generated, it is necessary to keep the pulsed beem profile unchaged in light propagation. Metal mirrors of gold or special enhanced silver mirrors with low dispersion are economical choice, but metal mirrors has limited reflectivity and high absorption losses, which makes it not suitable for the high energy lasers. The dielectric Low Group Delay Dispersion (GDD) Ultrafast Mirrors are design to provide high reflectivity with minimized GDD around a narrow bandwidth of central wavelength, comparing to enhanced-ultrafast silver mirrors, Low GDD Mirrors has higher reflection coefficient and higher damage threshold, make them fit for the high power femtosecond laser applications.
Hangzhou Shalom EO offers the stocked and custom GDD mirrors at wavelength band of 760-840nm and 1000-1060nm, with incident angle of 0 degree and 45 degree, Corning UV fused silica 7980 0F as the substrate materials and minimized GDD design. The GDD mirrors with other wavelength or application are available upon request.