A 3D-printed reflective lens fabricated via 2-photon polymerization for flexible catheter endoscopy

Clayton Walker; Kevin Beckford; Tomasz Tkaczyk; Brian E. Applegate

doi:10.1117/12.3017667

12 March 2024 A 3D-printed reflective lens fabricated via 2-photon polymerization for flexible catheter endoscopy

Clayton Walker, Kevin Beckford, Tomasz Tkaczyk, Brian E. Applegate

Proceedings Volume 12876, Laser 3D Manufacturing XI; 128760L (2024) https://doi.org/10.1117/12.3017667
Event: SPIE LASE, 2024, San Francisco, California, United States

Abstract

We present a flexible catheter endoscope using a 3D printed miniature side-viewing reflective lens for OCT imaging. A reflective lens with a depth of field (DOF) of 3mm and a maximum spot size of 80 microns was first designed and optimized in OpticStudio (ZEMAX). The structure of the lens and the fiber mating part of the optic was then constructed using 2-photon polymerization technique, and a gold reflective coating was added as the final step for the reflective lens. The reflective lens was then glued to cleaved optical fiber, and the assembly was covered by a torque coil to allow rotation of the catheter endoscope. This endoscope was used with a fiber-optic rotary joint and custom-built Mach-Zehnder interferometer to acquire OCT images.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Clayton Walker, Kevin Beckford, Tomasz Tkaczyk, and Brian E. Applegate "A 3D-printed reflective lens fabricated via 2-photon polymerization for flexible catheter endoscopy", Proc. SPIE 12876, Laser 3D Manufacturing XI, 128760L (12 March 2024); https://doi.org/10.1117/12.3017667

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