Conventional laser scanning mechanisms, such as MEMS mirrors and piezoelectric tubes, are often complex to fabricate and limited in their fields of view. We developed a distal laser scanning platform that is scalable for both high performance and low resource settings given its low cost and low voltage requirements. Our platform enabled a customisable array of resonantly scanning optical fibers to be mounted on the top and/or bottom of a piezoelectric bender. Parallel scans were combined to generate multiplexed multi-millimeter fields of view at low voltage drives. We explored the bender’s potential as an endomicroscopic scanning platform by demonstrating its use in the depth-multiplexed OCT imaging of a fingertip and 3D cell culture.
Endoscopic forward viewing optical coherence tomography is analogous to conventional endoscopic views and can be achieved by resonant scanning of an optical fiber. Multi-beam endoscopic resonant scanning is demonstrated by a set of optical fibers mounted to a piezoelectric bender actuator and depth-multiplexed using a long coherence length swept laser at 200 kHz sweep rate and 8 mm imaging range. A compact translation mechanism adjusting the distance between the imaging fibers and lenses enabled the precise tuning of optical magnification. Scalable fields of view between 1.3 mm and 2.8 mm were demonstrated.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.