Passive endoscopic polarization sensitive optical coherence tomography with completely fiber based optical components

Lucas Cahill; Anthony M. D. Lee M.D.; Hamid Pahlevaninezhad; Samson Ng D.D.S.; Calum E. MacAulay; Catherine Poh D.D.S.; Pierre Lane

doi:10.1117/12.2077820

2 March 2015 Passive endoscopic polarization sensitive optical coherence tomography with completely fiber based optical components

Lucas Cahill, Anthony M. D. Lee M.D., Hamid Pahlevaninezhad, Samson Ng D.D.S., Calum E. MacAulay, Catherine Poh D.D.S., Pierre Lane

Author Affiliations +

Proceedings Volume 9304, Endoscopic Microscopy X; and Optical Techniques in Pulmonary Medicine II; 930413 (2015) https://doi.org/10.1117/12.2077820
Event: SPIE BiOS, 2015, San Francisco, California, United States

Abstract

Polarization Sensitive Optical Coherence Tomography (PSOCT) is a functional extension of Optical Coherence Tomography (OCT) that is sensitive to well-structured, birefringent tissue such as scars, smooth muscle and cartilage. In this work, we present a novel completely fiber based swept source PSOCT system using a fiber-optic rotary pullback catheter. This PSOCT implementation uses only passive optical components and requires no calibration while adding minimal additional cost to a standard structural OCT imaging system. Due to its complete fiber construction, the system can be made compact and robust, while the fiber-optic catheter allows access to most endoscopic imaging sites. The 1.5mm diameter endoscopic probe can capture 100 frames per second at pullback speeds up to 15 mm/s allowing rapid traversal of large imaging fields. We validate the PSOCT system with known birefringent tissues and demonstrate in vivo PSOCT imaging of human oral scar tissue.

Citation Download Citation

Lucas Cahill, Anthony M. D. Lee M.D., Hamid Pahlevaninezhad, Samson Ng D.D.S., Calum E. MacAulay, Catherine Poh D.D.S., and Pierre Lane "Passive endoscopic polarization sensitive optical coherence tomography with completely fiber based optical components", Proc. SPIE 9304, Endoscopic Microscopy X; and Optical Techniques in Pulmonary Medicine II, 930413 (2 March 2015); https://doi.org/10.1117/12.2077820

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