Title :
A study on measuring refractive index by using an optoelectronic oscillator
Author :
Toan Thang Pham ; Ledoux-Rak, Isabelle ; Journet, Bernard ; Van Yem Vu
Author_Institution :
LPQM, ENS Cachan, Cachan, France
fDate :
July 30 2014-Aug. 1 2014
Abstract :
This paper presents a study on measuring the refractive index of liquids by using an optoelectronic oscillator. The measurement principle is based on a strong relation between the oscillation frequency and the global loop delay of the oscillator. Several experiments have been implemented to determine the refractive index of acetone, acetonitrile, 1,4-dioxane and 1,3-dioxolane. The experimental results are discussed and compared with previous publications. We also propose a new technique to monitor the refractive index of a liquid in real-time by using an external reference frequency source, a mixer and a frequency counter.
Keywords :
delays; integrated optics; integrated optoelectronics; liquids; optoelectronic devices; organic compounds; refractive index; refractive index measurement; 1,3-dioxolane; 1,4dioxane; acetone; acetonitrile; external reference frequency source; frequency counter; global loop delay; liquids; mixer; optoelectronic oscillator; oscillation frequency; refractive index measurement; Detectors; Indexes; Optical fiber couplers; Optical fiber filters; Optical variables measurement; Phase measurement; Radio frequency; Optoelectronic oscillator; free spectral range; frequency counter; mixer; refractive index;
Conference_Titel :
Communications and Electronics (ICCE), 2014 IEEE Fifth International Conference on
Conference_Location :
Danang
Print_ISBN :
978-1-4799-5049-2
DOI :
10.1109/CCE.2014.6916673
