Fast and Widely-tunable, VBG Spectrally Narrowed, Picosecond Optical Parametric Oscillator for Backscatter Absorption Gas Imaging
Résumé
We implement a fast and widely tunable picosecond OPO, based on an aperiodicallypoled ,nonlinear crystal, tuned and spectrally narrowed by a chirped VBG, for backscatter absorption gas imaging of N2O around 3.82 μm.