New-type fiber optical liquid refractometer

Ming-Hung Chiu; Shinn-Fwu Wang

doi:10.1117/12.558882

22 October 2004 New-type fiber optical liquid refractometer

Ming-Hung Chiu, Shinn-Fwu Wang

Proceedings Volume 5524, Novel Optical Systems Design and Optimization VII; (2004) https://doi.org/10.1117/12.558882
Event: Optical Science and Technology, the SPIE 49th Annual Meeting, 2004, Denver, Colorado, United States

Abstract

A new type of fiber optical liquid refractometer based on total-internal reflection heterodyne interferometry (TIRHI) is proposed. The phase shift difference due to the TIR effects between the P and S-polarizations is measured using heterodyne interferometry with a D-type fiber sensor. Substituting the phase shift difference into Fresnel's equations, the refractive index can be calculated. It has some merits, such as, high sensitivity and stability, small size and real-time measurement.

Citation Download Citation

Ming-Hung Chiu and Shinn-Fwu Wang "New-type fiber optical liquid refractometer", Proc. SPIE 5524, Novel Optical Systems Design and Optimization VII, (22 October 2004); https://doi.org/10.1117/12.558882

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