Compact coherent anti-Stokes Raman scattering microscope based on a picosecond two-color Er:fiber laser system

We present a compact coherent anti-Stokes Raman scattering microscope based on a widely tunable picosecond Er:fiber laser. Intense and bandwidth-limited 1 ps pump pulses at a center wavelength of 775 nm are generated via frequency mixing within the broadband fundamental at 1.55 microm. Narrowband St...

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Bibliographic Details
Published in:Optics letters 2009-09, Vol.34 (18), p.2847-2849
Main Authors: KRAUSS, Giinther, HANKE, Tobias, SELL, Alexander, TRÄUTLEIN, Daniel, LEITENSTORFER, Alfred, SELM, Romedi, WINTERHALDER, Martin, ZUMBUSCH, Andreas
Format: Article
Language:English
Subjects:
Exact sciences and technology
Fiber lasers
Fundamental areas of phenomenology (including applications)
Lasers
Nonlinear optics
Optics
Physics
Ultrafast processes
optical pulse generation and pulse compression
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Summary:We present a compact coherent anti-Stokes Raman scattering microscope based on a widely tunable picosecond Er:fiber laser. Intense and bandwidth-limited 1 ps pump pulses at a center wavelength of 775 nm are generated via frequency mixing within the broadband fundamental at 1.55 microm. Narrowband Stokes pulses are obtained by frequency shifting of solitons in a highly nonlinear bulk fiber and subsequent second-harmonic generation. The tuning range from 850 nm to 1100 nm gives access to vibrational resonances between 1150 cm(-1) and 3800 cm(-1). A first imaging application in the spectral region of CH stretch vibrations is demonstrated.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.34.002847