Polarization-sensitive optical coherence tomography based on a spun fiber (Conference Presentation)

Junxiao Yu; Sucbei Moon; Zhongping Chen; Jiang Zhu; Tiancheng Huo

doi:10.1117/12.2511567

4 March 2019 Polarization-sensitive optical coherence tomography based on a spun fiber (Conference Presentation)

Junxiao Yu, Sucbei Moon, Zhongping Chen, Jiang Zhu, Tiancheng Huo

Proceedings Volume 10867, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII; 1086711 (2019) https://doi.org/10.1117/12.2511567
Event: SPIE BiOS, 2019, San Francisco, California, United States

Abstract

Polarization sensitive optical coherence tomography (PS-OCT) is a functional extension of optical coherence tomography (OCT). It provides addition information of the sample based on by analyzing polarization states of the backscattering light. Serval PS-OCT such as free-space optics, single model fiber and polarization maintaining (PM) fibers systems have been developed so far. However, the free space PS-OCT is prone to systematic errors and impractical in clinic settings. Dues to the uncontrolled polarization states, single model-based optics requires additional compensation and self-calibration techniques are required. Traditional PM fiber preserves the polarization states but found expensive and can not be used in rotating endoscopic or catheter probe. In this study, we develop a novel scheme of PS-OCT implementation using specific PM fiber, known as spun fiber, which has a structure of PM fiber twisted along the fiber optic axis and distinguishes two circular opalization states with different propagation speeds. Spun fiber has the advantages in maintaining the polarization states and regardless of fiber bends. The orientation insensitivity of the spun fiber makes it of great potential in endoscopic PS-OCT system. We tested our spun fiber-based PS-OCT system on chicken breast sample. The phase retardation image shows clear muscle structures compared to intensity-based OCT images, indicating our PS-OCT system has the ability to detect tissue birefringence.

Conference Presentation

Citation Download Citation

Junxiao Yu, Sucbei Moon, Zhongping Chen, Jiang Zhu, and Tiancheng Huo "Polarization-sensitive optical coherence tomography based on a spun fiber (Conference Presentation)", Proc. SPIE 10867, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XXIII, 1086711 (4 March 2019); https://doi.org/10.1117/12.2511567

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KEYWORDS

Optical coherence tomography

Polarization

Structured optical fibers

Endoscopy

Free space optics

Singular optics

Systems modeling

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