Common path endoscopic optical coherence tomography with outside path length compensation

Yaliang Yang; Zhihua Ding; Jie Meng; Lan Wu; Zi’ang He; Tong Wu; Minghui Chen

doi:10.1117/12.756901

8 January 2008 Common path endoscopic optical coherence tomography with outside path length compensation

Yaliang Yang, Zhihua Ding, Jie Meng, Lan Wu, Zi’ang He, Tong Wu, Minghui Chen

Proceedings Volume 6826, Optics in Health Care and Biomedical Optics III; 68261S (2008) https://doi.org/10.1117/12.756901
Event: Photonics Asia 2007, 2007, Beijing, China

Abstract

Endoscopic optical coherence tomography (OCT) allowing high-resolution imaging of internal tissue is attractive for medical imaging. Fibre, fibre bundle or GRIN lens rod acting as endoscopic probe is placed in the sample arm of a Michelson interferometer in current endoscopic OCT systems, this arrangement has to be carefully configured to avoid dispersion and polarization fading. In this study, a common path OCT system with outside path length compensation is presented. The system based on Fizeau configuration requires a Michelson interferometer to compensate the optical path difference between the reference and signal light in the Fizeau sensing interferometer. Experiments of path length compensation and vibration are conducted, and the results demonstrate that this outside compensation method is feasible and the system is immune to the vibration which occurs at the Fizeau sensing interferometer. This OCT imaging approach is very suitable for endoscopic imaging and detailed endoscopic OCT system is also presented. Several samples were imaged to demonstrate the performance of the proposed OCT system.

Citation Download Citation

Yaliang Yang, Zhihua Ding, Jie Meng, Lan Wu, Zi’ang He, Tong Wu, and Minghui Chen "Common path endoscopic optical coherence tomography with outside path length compensation", Proc. SPIE 6826, Optics in Health Care and Biomedical Optics III, 68261S (8 January 2008); https://doi.org/10.1117/12.756901

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

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.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available