Ultrahigh resolution optical coherence tomography using a superluminescent light source

被引：70
|
作者：
Kowalevicz, AM [1 ]
Ko, T
Hartl, I
Fujimoto, JG
Pollnau, M
Salathé, RP
机构：
[1] MIT, Dept Elect Engn & Comp Sci, Cambridge, MA 02139 USA
[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA
[3] Swiss Fed Inst Technol, Inst Appl Opt, Dept Microtech, CH-1015 Lausanne, Switzerland
[4] Harvard Univ, Div Engn & Appl Sci, Cambridge, MA 02138 USA
来源：
OPTICS EXPRESS | 2002年 / 10卷 / 07期
关键词：
D O I：
10.1364/OE.10.000349
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A superluminescent Ti: Al2O3 crystal is demonstrated as a light source for ultrahigh resolution optical coherence tomography (OCT). Single spatial mode, fiber coupled output powers of similar to40 muW can be generated with 138 nm bandwidth using a 5 W frequency doubled, diode pumped laser, pumping a thin Ti: Al2O3 crystal. Ultrahigh resolution OCT imaging is demonstrated with 2.2 mum axial resolution in air, or 1.7 mum in tissue, with >86 dB sensitivity. This light source provides a simple and robust alternative to femtosecond lasers for ultrahigh resolution OCT imaging. (C) 2002 Optical Society of America.
引用
收藏
页码：349 / 353
页数：5
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