Abstract

A fiber-optic dipping liquid analyzer (FDLA) is developed for measuring liquid properties such as concentration, refractive index, surface tension, and viscosity. An important feature of the FDLA is that a liquid drop is introduced on the end face of a fiber probe, and the drop can be regarded as a planar-convex lens. The light transmitting path and receiving power are affected by the refractive index of the liquid drop. We present a theoretical and experimental analysis of the light transmission. A mathematical model of receiving power is established based on paraxial refraction imaging and fiber reflective intensity modulation methods. Sucrose-water solutions were tested with the FDLA. The experimental results agree well with the theoretical analysis.

© 2009 Optical Society of America

Theoretical modeling of a localized surface plasmon resonance based intensity modulated fiber optic refractive index sensor

Sachin K. Srivastava, Rajneesh K. Verma, and Banshi D. Gupta
Appl. Opt. 48(19) 3796-3802 (2009)

Theoretical and experimental studies on direct-liquid-cooling fiber-coiling mode control technology in high-power fiber lasers

Lu Yin, Mingjian Yan, Zhigang Han, Hua Shen, and Rihong Zhu
Appl. Opt. 58(6) 1577-1586 (2019)

Liquid-filled microstructured polymer fibers as monolithic liquid-core array fibers

Jian Wang and Lili Wang
Appl. Opt. 48(5) 881-885 (2009)

Angular displacement fiber-optic sensor: theoretical and experimental study

Nathalie Mancier, Ayoub Chakari, Patrick Meyrueis, and Michel Clément
Appl. Opt. 34(28) 6489-6495 (1995)

Theoretical study of liquid-immersed exposed-core microstructured optical fibers for sensing

S. C. Warren-Smith, S. Afshar V., and T. M. Monro
Opt. Express 16(12) 9034-9045 (2008)