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Common-path optical coherence tomography using a microelectromechanical-system-based endoscopic probe


Wang, Donglin; Duan, Can; Zhag, Xiaoyang; Yun, Zhao; Pozzi, Antonio; Xie, Huikai (2016). Common-path optical coherence tomography using a microelectromechanical-system-based endoscopic probe. Applied Optics, 55(25):6930-6935.

Abstract

This paper presents a common-path (CP) swept-source optical coherence tomography (SSOCT) system based on a special endoscopic probe design with an in-line internal reflection as the reference and a two-axis electrothermal microelectromechanical system mirror for image scanning. The rear surface of a gradient reflective index (GRIN) lens inside the probe is set as the reference reflection plane. The length of the GRIN lens is optimized to eliminate the artifacts in SSOCT images successfully. Doppler OCT is also demonstrated based on the CP endoscopic probe. The diameter of the probe is only 2.5 mm, so it can be easily inserted into the biopsy channel of traditional endoscopes to access human internal organs for in vivo diagnoses.

Abstract

This paper presents a common-path (CP) swept-source optical coherence tomography (SSOCT) system based on a special endoscopic probe design with an in-line internal reflection as the reference and a two-axis electrothermal microelectromechanical system mirror for image scanning. The rear surface of a gradient reflective index (GRIN) lens inside the probe is set as the reference reflection plane. The length of the GRIN lens is optimized to eliminate the artifacts in SSOCT images successfully. Doppler OCT is also demonstrated based on the CP endoscopic probe. The diameter of the probe is only 2.5 mm, so it can be easily inserted into the biopsy channel of traditional endoscopes to access human internal organs for in vivo diagnoses.

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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:05 Vetsuisse Faculty > Veterinary Clinic > Department of Small Animals
Dewey Decimal Classification:570 Life sciences; biology
630 Agriculture
Language:English
Date:2016
Deposited On:24 Nov 2016 13:04
Last Modified:08 Dec 2017 20:59
Publisher:Optical Society of America
ISSN:0003-6935
Publisher DOI:https://doi.org/10.1364/AO.55.006930
PubMed ID:27607267

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