Pulse Width Stabilization for Ultrafast Laser Systems

In this report, we describe a method and the resultant performance data for precise and efficient laser pulse width stabilization in the ultrafast laser regime. The pulse quality feedback mechanism is based on a two-photon absorption detector, and the adjustments to system dispersion are executed by embedded software tuning the inter-grating distance in the pulse compressor. Relative pulse width variability of only 4% is demonstrated over 8 hours despite changing ambient conditions. To our knowledge, this is the first ever ultrafast laser pulse autonomous stabilization scheme integrated into an industrial platform.