Rapid-scanning forward-imaging miniature endoscope for real-time optical coherence tomography

We developed a miniature endoscope that is capable of rapid lateral scanning and is suitable for real-time forward-imaging optical coherence tomography (OCT). The endoscope has an outer diameter of 2.4 mm, consisting of a miniature tubular lead zirconate titanate (PZT) actuator, a single-mode fiber-...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 2004-08, Vol.29 (15), p.1763-1765
Main Authors: XIUMEI LIU, COBB, Michael J, YUCHUAN CHEN, KIMMEY, Michael B, XINGDE LI
Format: Article
Language:English
Subjects:
Biological and medical sciences
Computer Systems
Endoscopes
Equipment Design
Fundamental and applied biological sciences. Psychology
General aspects, investigation technics, apparatus
Image analysis
Time Factors
Tissues, organs and organisms biophysics
Tomography, Optical Coherence
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We developed a miniature endoscope that is capable of rapid lateral scanning and is suitable for real-time forward-imaging optical coherence tomography (OCT). The endoscope has an outer diameter of 2.4 mm, consisting of a miniature tubular lead zirconate titanate (PZT) actuator, a single-mode fiber-optic cantilever, and a graded-index lens. Rapid lateral scanning at 2.8 kHz is achieved when the fiber-optic cantilever is resonated with the PZT actuator. This allows OCT imaging to be performed by fast lateral beam scanning followed by slow depth scanning, which is different from the conventional OCT imaging sequence. Real-time OCT imaging with the endoscope operated in the new image acquisition sequence at 6 frames/s is demonstrated.
ISSN:0146-9592
1539-4794
DOI:10.1364/ol.29.001763