Rapid scanning all-reflective optical delay line for real-time optical coherence tomography.
Rapid scanning all-reflective optical delay line for real-time optical coherence tomography.
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DOI：
10.1364/ol.29.000080
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发表时间：
2004
期刊：
影响因子：
3.6
通讯作者：
Xiumei Liu;M. Cobb;Xingde Li
中科院分区：
文献类型：
--
作者：
Xiumei Liu;M. Cobb;Xingde Li
We describe a dispersion-free high-speed scanning optical delay line that is suitable for real-time optical coherence tomography, in particular, when an ultrabroadband light source is used. The delay line is based on all-reflective optics consisting of two flat and one curved mirrors. We achieve optical path-length scanning by oscillating one of the two flat mirrors with a resonant galvanometer. The delay line is compact and easy to implement. A total scanning depth of 1.50 mm with an 89% duty ratio, a maximal scanning speed of approximately 9.1 m/s, and a 4.1-kHz repetition rate has been demonstrated.
