Abstract

A fiber-optic-bundle-based optical coherence tomography (OCT) probe method is presented. The experimental results demonstrate this multimode optical fiber-bundle-based OCT system can achieve a lateral resolution of 12 microm and an axial resolution of 10 microm with a superluminescent diode source. This novel OCT imaging approach eliminates any moving parts in the probe and has a primary advantage for use in extremely compact and safe OCT endoscopes for imaging internal organs and great potential to be combined with confocal endoscopic microscopy.

Highlights

  • Other noninvasive morphological imaging techniques such as x-ray radiography, magnetic resonance imaging (MRI), computed tomography (CT), and ultrasound imaging have been widely used in various clinical applications with resolutions ranging from 100 ␮m to 1 mm

  • In this Letter we present a new fiber-bundle optical coherence tomography (OCT) imaging method with front-view scanning that consists of a fused coherent fiber bundle and an objective lens system

  • In the OCT image from the fundamental mode in the fiber, the dispersion could almost be compensated as shown in Fig. 3(b) and the resultant axial resolution where ␭ is the wavelength of light and d is the diameter of the fiber core

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Summary

Introduction

In this Letter we present a new fiber-bundle OCT imaging method with front-view scanning that consists of a fused coherent fiber bundle and an objective lens system. The scanning mechanism is placed at the proximal fiber-bundle entrance.

Results
Conclusion

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