A high-repetition-rate broadband optical parametric amplifier with prism-based pulse-front tilt compensation

We have developed a tunable, high-repetition-rate, broadband noncollinear optical parametric amplifier (NOPA) system pumped by a 1030 nm Yb:KGW laser. The system employs a prism-based dispersion compensation scheme that effectively corrects the wavefront tilt between the pump and seed pulses. Experimental results show that the NOPA provides single-shot output covering a spectral range of approximately 680–980 nm and enables tunable signal generation within 620–980 nm. The proposed design demonstrates excellent robustness and broad spectral coverage, offering a practical and efficient solution for realizing high-repetition-rate broadband light sources with great potential for applications in ultrafast spectroscopy and imaging.