Evaluation of a cheap ultrasonic stage for light source coherence function measurement, optical coherence tomography, optical coherence microscopy, and dynamic focusing


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Krstajic, Nikola and Matcher, Stephen J. and Childs, David and Hogg, Richard and Smallwood, Rod and Steenbergen, Wiendelt (2009) Evaluation of a cheap ultrasonic stage for light source coherence function measurement, optical coherence tomography, optical coherence microscopy, and dynamic focusing. In: Optical Coherence Tomography and Coherence Techniques IV. Proceedings of SPIE-OSA Biomedical Optics, 7372 . SPIE/OSA, 73721I. ISBN 9780819476487

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Abstract:We evaluate the performance of a cheap ultrasonic stage in setups related to optical coherence tomography. The stage was used in several configurations: 1) optical delay line in optical coherence tomography (OCT) setup; 2) as a delay line measuring coherence function of a low coherence source (e.g. superluminescent diode); 3) as a path length modulator in optical coherence microscopy (OCM) setup and finally 4) in a dynamic focusing arrangement. We evaluate each configuration and point to possible improvements either in setups or ultrasonic stage architecture. The results are as follows: the stage is suitable for coherence function measurement of the light source and, with some limitations, dynamic focusing. We found it unsuitable for OCT due to unstable velocity profile, while smaller step movement is required for OCM imaging
Item Type:Book Section
Copyright:© 2009, Society of Photo-Optical Instrumentation Engineers and Optical Society of America
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Science and Technology (TNW)
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Link to this item:http://purl.utwente.nl/publications/77738
Official URL:http://dx.doi.org/10.1117/12.831787
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