Stimulated Raman scattering microscopy with a robust fibre laser source

A dual-wavelength fibre laser source has been developed for stimulated Raman scattering microscopy. It is precisely tunable over the entire high-wavenumber region of Raman spectra, where most stimulated Raman scattering imaging is performed. Imaging speeds of up to 1 frame s−1 with shot-noise-limited sensitivity were achieved.