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Optical Engineering • Open Access

Radio-frequency ring resonators for self-referencing fiber-optic intensity sensors
Author(s): Carmen Vázquez García; Julio Montalvo; Pedro Contreras Lallana

Paper Abstract

A theoretical and experimental study of radio-frequency ring resonators (RR) for referencing and improving the sensitivity of fiber-optic intensity sensors (FOS) is reported. The separation between lead and transducer losses in the FOS is solved by converting the light intensity fluctuations to be measured into RR losses that produce high amplitude variations in the proximity of the RR resonance frequencies. Two different self-referencing techniques are developed. Via the definition of the measurement parameter RM, sensor linearity and sensitivity are analyzed. A calibration using an optical attenuator is reported to validate the model.

Paper Details

Date Published: 1 April 2005
PDF: 2 pages
Opt. Eng. 44(4) 040502 doi: 10.1117/1.1883566
Published in: Optical Engineering Volume 44, Issue 4
Show Author Affiliations
Carmen Vázquez García, Univ. Carlos III de Madrid (Spain)
Julio Montalvo, Univ. Carlos III de Madrid (Spain)
Pedro Contreras Lallana, Univ. Carlos III de Madrid (Spain)


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