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- Title
Common-path optical coherence tomography with side-viewing bare fiber probe for endoscopic optical coherence tomography.
- Authors
Sharma, Utkarsh; Kang, Jin U
- Abstract
All-fiber-optic common-path optical coherence tomography (OCT) using a side-viewing bare fiber probe has been demonstrated and analyzed. A bare single mode fiber tip is angle cleaved at approximately 49 degrees to enable side illumination due to total internal reflection. The bare fiber probe was inserted in an arterial tissue and a circumferential OCT scan was obtained. The research is aimed at realizing highly miniaturized monolithic probes for possible applications in miniature endoscopic OCT or intravascular OCT. The effects of the angle of the cleaved fiber on reference reflection and the sensitivity of the common-path OCT system have been studied theoretically. The angle cleaved fiber probe is also used in series with a microlens to analyze and optimize its performance in a common-path OCT system. Our research aims to explore the combined advantages of common-path OCT and extremely simplified miniature probe design and to discuss how it may greatly simplify the endoscopic OCT instrumentation eventually.
- Publication
The Review of scientific instruments, 2007, Vol 78, Issue 11, p113102
- ISSN
0034-6748
- Publication type
Journal Article
- DOI
10.1063/1.2804112