期刊
OPTICS LETTERS
卷 38, 期 20, 页码 4154-4157出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.38.004154
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资金
- National Institutes of Health [EB002019, 1R01EB010244-01]
- National Science Foundation [BIS-0967949]
- National Science Foundation Graduate Research Fellowship Program
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [0967949] Funding Source: National Science Foundation
We present a synchronously pumped fiber optical parametric oscillator for coherent anti-Stokes Raman scattering microscopy. Pulses from a 1 mu m 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. (C) 2013 Optical Society of America
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