13 March 2007 Generation of smooth continuum centered at 1.15 &mgr;m for ultrahigh resolution OCT
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Abstract
We report a broad-band continuum light source with high power, low noise and a smooth spectrum centered at 1.15 &mgr;m for ultrahigh-resolution optical coherence tomography (OCT). The continuum is generated by self-phase modulation using a compact 1.059 &mgr;m femtosecond laser pumping a novel photonic crystal fiber, which has a convex dispersion profile with no zero dispersion wavelengths. The emission spectrum ranges from 800 to 1300 nm and results in a measured axial resolution of ~2.8 &mgr;m in air. We demonstrate ultrahigh-resolution OCT imaging of biological tissue using this light source.
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Hui Wang, Andrew M. Rollins, "Generation of smooth continuum centered at 1.15 &mgr;m for ultrahigh resolution OCT", Proc. SPIE 6460, Commercial and Biomedical Applications of Ultrafast Lasers VII, 64600C (13 March 2007); doi: 10.1117/12.701392; https://doi.org/10.1117/12.701392
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