Fiber-based laser sources for Coherent Anti-Stokes Raman scattering (CARS) microscopy and Stimulated Raman Spectroscopy (SRS) have been successfully used for label-free bio-imaging in the past. We present an improved design of a dual-wavelength source for CARS and SRS enabling a wider frequency-range from <630cm^-1 up to 2250cm^-1 while the tuning time remains in the range of a few seconds over the full range. The system is fiber-based and thus resistant to detrimental thermal effects even at output powers in the Watt-range with improved tunability of Stokes and pump power. Repetition rates up to 10MHz are possible and the spectral width of the signals is <15cm^-1 enabling most applications.
Fiber-based laser sources for Coherent Anti-Stokes Raman scattering (CARS) microscopy and Stimulated Raman Spectroscopy (SRS) have been successfully used for label-free bio-imaging in the last few years. However, these systems were limited so far to a few experimental setups in university labs. We present the first extremely compact commercially available dual-wavelength source for CARS and SRS. With a foot-print of <30cm x 50cm this alignment-free turn-key system offers tuning over the highly relevant frequency range from <500cm^-1 up to 5000cm^-1 within a few seconds without any detrimental thermal effects. The spectral width of the signals is <10cm^-1 enabling a multitude of applications.
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