期刊
APPLIED OPTICS
卷 46, 期 10, 页码 1787-1794出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.46.001787
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- NCI NIH HHS [R24CA110943-01] Funding Source: Medline
- NCRR NIH HHS [C06 RR12463-01] Funding Source: Medline
We demonstrate a dual-band continuum light source centered at 830 and 1300 nm. for optical coherence tomography (OCT) generated by pumping a photonic crystal fiber having two closely spaced zero-dispersion wavelengths with a femtosecond laser at 1059 nm. By use of polarization control, sidelobe suppression can be improved up to approximately 7.7 dB. By employing compression of the pump pulses, the generated spectrum is smooth and near-Gaussian, resulting in a point-spread function with negligible sidelobes. We demonstrate ultrahigh-resolution OCT imaging of biological tissue in vivo and in vitro using this light source and compare it with conventional-resolution OCT imaging at 1300 nm. (c) 2007 Optical Society of America.
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