to characterize the femtosecond pulse Laser Reflection and Transmission Optics elements. Ultrafast pulses in Optics systems as they propagate widen, and by measuring each Optics element's resulting GDD and properly compensating for the distortion, it is possible to recover the Pulse Duration. In order to obtain high-precision and high-reliability results, time-domain White Light Interferometer is used to measure GDD. The Dispersion measurement system's software includes guiding the user in beam alignment, automatically finding the zero delay position, and fast and accurate measurement Dispersion. We use the GDD measurement system to test each batch to ensure that the product meets the application requirements.