Stimulated Raman scattering microscopy by Nyquist modulation of a two-branch ultrafast fiber source

Claudius Riek, Claudius Kocher, Peyman Zirak, Christoph Kölbl, Peter Fimpel, Alfred Leitenstorfer, Andreas Zumbusch, Daniele Brida
2016 Optics Letters  
A highly stable setup for stimulated Raman scattering (SRS) microscopy is presented. It is based on a two-branch femtosecond Er:fiber laser operating at a 40 MHz repetition rate. One of the outputs is directly modulated at the Nyquist frequency with an integrated electro-optic modulator (EOM). This compact source combines a jitter-free pulse synchronization with a broad tunability and allows for shot-noise limited SRS detection. The performance of the SRS microscope is illustrated with
more » ... nts on samples from material science and cell biology.
doi:10.1364/ol.41.003731 pmid:27519075 fatcat:4e7i64hetbcddnmrs25ztg75fe