Abstract

Optical coherence tomography (OCT) is a powerful non-invasive imaging technique. Using a quite broadband light source, like a supercontinuum (SC) source or a combined superluminescent diode (SLD), ultrahigh-resolution OCT (UHR-OCT) enables us to observe micron-scale cross-sectional structure of tissue [1]. Moreover, spectral-domain OCT (SD-OCT) system allows for high-speed imaging, so that we can observe tissue in real-time. Recently, 1.7 um wavelength region has been attractive to allow highly penetrative imaging, because of less absorption of water and less scattering effect [2,3]. However, UHR-SD-OCT system in 1.7 um region has not been demonstrated, because it is very difficult that both generation of a broadband light source and construction of a detection system for SD-OCT in 1.7 um region.

© 2015 IEEE