Fiber optical parametric oscillator for coherent anti-Stokes Raman scattering microscopy.
Opt Lett
; 38(20): 4154-7, 2013 Oct 15.
Article
em En
| MEDLINE
| ID: mdl-24321947
ABSTRACT
We present a synchronously pumped fiber optical parametric oscillator for coherent anti-Stokes Raman scattering microscopy. Pulses from a 1 µm Yb-doped fiber laser are amplified and frequency converted to 779-808 nm through normal dispersion four-wave mixing in a photonic crystal fiber. The idler frequency is resonant in the oscillator cavity, and we find that bandpass filtering the feedback is essential for stable, narrow-bandwidth output. Experimental results agree quite well with numerical simulations of the device. Transform-limited 2 ps pulses with energy up to 4 nJ can be generated at the signal wavelength. The average power is 180 mW, and the relative-intensity noise is much lower than that of a similar parametric amplifier. High-quality coherent Raman images of mouse tissues recorded with this source are presented.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Análise Espectral Raman
/
Fibras Ópticas
Limite:
Animals
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2013
Tipo de documento:
Article