Measurement of the degree of polarization using FTO in a rectangular-type Sagnac interferometer

Usman, Abdullahi; Bhatranand, Apichai; Jiraraksopakun, Yuttapong; Buranasiri, Prathan

doi:10.1117/12.3070354

Measurement of the degree of polarization using FTO in a rectangular-type Sagnac interferometer

Author(s)

Usman, Abdullahi

Bhatranand, Apichai

Jiraraksopakun, Yuttapong

Buranasiri, Prathan

Date Issued

January 1, 2025

Type

Conference Paper

DOI

10.1117/12.3070354

Abstract

This paper presents a modified Sagnac interferometer using a self-referenced polarization and phase-shifting technique for real-time measurement of rotating polarized light and the degree of polarization (DOP). The setup achieved a high DOP of 98.97%, enabling accurate reference signals for measuring the effective thickness in the samples deposited on the FTO glass substrate.

Citation

Proceedings of SPIE the International Society for Optical Engineering, 13663, 2025