A multi-wavelength, variable-pulse-width, diode-pumped laser system

An all-solid-state laser system that provides 165-fs to 60-ps FWHM (full-width-at-half-maximum) pulses in a UV to near-IR wavelength range is described. The laser system consists of a femtosecond laser, a highly stable diode-pumped regenerative amplifier, and frequency-conversion crystals. The system can be configured for various photodetector impulse-response measurements, single-shot impulse and frequency response measurements for the photodetector- oscilloscope combinations, streak-camera sweep calibration, and dynamic-range measurements.