Abstract
High-resolution optical coherence tomography demands a large detector bandwidth and a high numerical aperture for real-time imaging, which is difficult to achieve over a large imaging depth. To resolve these conflicting requirements we propose a novel multifocus fiber-based optical coherence tomography system with a micromachined array tip. We demonstrate the fabrication of a prototype four-channel tip that maintains a spot diameter with more than of imaging depth. Images of a resolution target and a human tooth were obtained with this tip by use of a four-channel cascaded Michelson fiber-optic interferometer, scanned simultaneously at 8 kHz with geometric power distribution across the four channels.
© 2004 Optical Society of America
Full Article | PDF ArticleOSA Recommended Articles
Yingtian Pan, Huikai Xie, and Gary K. Fedder
Opt. Lett. 26(24) 1966-1968 (2001)
J. M. Zara, S. Yazdanfar, K. D. Rao, J. A. Izatt, and S. W. Smith
Opt. Lett. 28(8) 628-630 (2003)
Tuqiang Xie, David Mukai, Shuguang Guo, Matthew Brenner, and Zhongping Chen
Opt. Lett. 30(14) 1803-1805 (2005)