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  • Martin, Ines; Pertot, Yoann; Olivier, Albert; Pinoteau, Thomas; Coudreau, Sébastien; Pomarède, Simon; Villanueva, José; Gitzinger, Grégory; Penda Leye; Jelicic, Ivan; Vaneph, Cyril; Kaplan, Daniel; Bux, Simone; get, Nicolas; Sylvestre, Thibaut; Métais, Samuel; Rigneault, Hervé

    arXiv (Cornell University), 02/2024
    Paper, Journal Article

    We present a 40-MHz ultrafast optical parametric amplifier (OPA), tunable from 0.8 to 1 \(\mu\)m, with a relative intensity noise (RIN) matching the shot-noise floor (-160 dB/Hz) above 2 MHz. The OPA is pumped by a 20-W Kerr-lens mode-locked Ytterbium laser and seeded by a a supercontinuum generated in an all-normal-dispersion (ANDi) fiber. With an average output power >1.5 W, this compact and simple scheme is an attractive alternative to synchronously-pumped optical parametric oscillators, especially within the context of stimulated Raman scattering (SRS) imaging. To illustrate the latter, we perform chemical imaging of vinegar droplets in oil by SRS microscopy.