Abstract

A ${\mathrm{Ce}}^{3+}:\mathrm{YAG}$ double-clad crystal fiber (DCF) visible emission was used as the light source for optical coherence tomography (OCT). The visible emission was produced from a $10\mu \mathrm{m}$ core DCF pumped by a diode laser. The broadband emission and short central wavelength of this light source enabled the realization of $1.5\mu \mathrm{m}$ axial resolution in air. The relatively clean spectrum reduced the side lobe of its point-spread function, and therefore facilitated the generation of a high-quality image with less crosstalk between adjacent image pixels. As a demonstration, an Aplocheilus lineatus goldfish was experimented on to map out the stroma of its cornea. This visible-light-based OCT can be utilized for industrial inspection as well as ocular applications.

© 2010 Optical Society of America

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