Graduate Institute of Photonics and Optoelectronics, National Taiwan University, Taipei 106, Taiwan.
Opt Lett. 2010 Mar 15;35(6):811-3. doi: 10.1364/OL.35.000811.
A Ce(3+):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 microm core DCF pumped by a diode laser. The broadband emission and short central wavelength of this light source enabled the realization of 1.5 microm 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.
YAG 双包层晶体光纤（DCF）可见光发射作为光学相干断层扫描（OCT）的光源。这种可见光发射是由二极管激光器泵浦的 10 微米芯 DCF 产生的。该光源的宽带发射和短中心波长使其在空气中实现了 1.5 微米的轴向分辨率。相对纯净的光谱降低了其点扩散函数的旁瓣，从而有利于生成具有较少相邻图像像素之间串扰的高质量图像。作为演示，对一条金线鲫进行了实验，以绘制其角膜的基质。这种基于可见光的 OCT 可用于工业检测以及眼部应用。
