The FR-103HP is a compact NL crystal autocorrelator, suitable for high power lasers (Pav>5mW). It is available with a scan range >60ps (suitable for pulsewidths within 10fs-15ps) and covers a wide range of wavelengths with easily interchangeable plug-in detector modules. The standard FR-103HP provides ‘real-time’ pulsewidth monitoring capability for rep rates down to 1kHz. Pulsewidths from lower rep rate lasers are monitored and analyzed on a PC display, utilizing the /CDA option. Fiber coupled lasers can be input using the /FA option, providing for alignment free operation. The standard noncollinear configuration, leading to background-free autocorrelation with high dynamic range, can easily be changed to fringe-resolved operation with the Interfometric Option (/IO).