Multi-beam endoscopic resonant scanning with adjustable optical magnification

Rachel Tan; Kaicheng Liang; Whitney Loh

doi:10.1117/12.2612883

7 March 2022 Multi-beam endoscopic resonant scanning with adjustable optical magnification

Rachel Tan, Kaicheng Liang, Whitney Loh

Proceedings Volume PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI; PC119480C (2022) https://doi.org/10.1117/12.2612883
Event: SPIE BiOS, 2022, San Francisco, California, United States

Abstract

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.

Conference Presentation

Citation Download Citation

Rachel Tan, Kaicheng Liang, and Whitney Loh "Multi-beam endoscopic resonant scanning with adjustable optical magnification", Proc. SPIE PC11948, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXVI, PC119480C (7 March 2022); https://doi.org/10.1117/12.2612883

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