Optical coherence tomography using nonlinear optics in fiber for broadband source generation
Resource
Optics Communications 212 (4-6): 391-396
Journal
Optics Communications
Journal Volume
212
Journal Issue
4��6��
Pages
391-396
Date Issued
2002
Date
2002
Author(s)
Abstract
An optical coherence tomography (OCT) system of sub-10-μm resolution, with its broadband source generated through nonlinear optics processes of a femtosecond Ti:sapphire laser in a single-mode fiber, was built for biological tissue scanning. With 400 mW power coupled into the fiber, a spectral full-width-at-half-maximum (FWHM) of 46 nm, centered at 840 nm, could be obtained. The available power for sample illumination could be as high as 100 mW. This condition was used to achieve the OCT depth resolution of 8.6 μm in tissues. The OCT system was used for scanning a human gingival mucosa sample. Cavity structures were observed that were quite consistent with the results of histological examination. ? 2002 Published by Elsevier Science B.V.
SDGs
Other Subjects
Histology; Laser tissue interaction; Nonlinear optics; Optical fibers; Optical resolving power; Scanning; Solid state lasers; Tomography; Tumors; Optical coherence tomography; Coherent light
Type
journal article
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