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Chirp-compensated pulsed titanium-sapphire laser system for precision spectroscopy

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posted on 2023-01-12, 14:46 authored by J. Hussels, C. Cheng, E. J. Salumbides, W. Ubachs
Active frequency-chirp compensation for a narrowband pulsed Titanium-Sapphire laser system is demonstrated using an intra-cavity electro-optic modulator resulting in improved spectral resolution and stability. With referencing to an optical frequency comb and further residual frequency chirp detection from shot-to-shot measurements, the resulting laser pulses are frequency up-converted for high-precision spectroscopy measurements in the VUV regime, where the relative uncertainty contribution due to frequency chirp is pushed to the $5 \times 10^{-11}$ level.

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