Title :
Opto-electronic oscillator: Applications to sensors
Author :
Duy, Nguyên Lam ; Journet, Bernard ; Ledoux-Rak, Isabelle ; Zyss, Joseph ; Nam, Luong Vu Hai ; Luc, Vu Van
Author_Institution :
D´´Alembert Inst., Ecole Normale Super. de Cachan, Cachan
fDate :
Sept. 9 2008-Oct. 3 2008
Abstract :
Optoelectronic oscillators (OEO) have been studied since many years now, the research activities being oriented towards the improvement of the oscillator. In this paper the using of an OEO as a sensing system based on the high sensitivity of its oscillation frequency to the fiber length is demonstrated. A slope of -75 kHz/mm has been obtained by tuning the length of a free space path inserted in the optical loop. An accuracy of 0.54% by measuring of the refractive index of a Plexiglas plate has been recorded. Other sensing structures are also proposed.
Keywords :
fibre optic sensors; microwave oscillators; microwave photonics; optical tuning; refractive index measurement; OEO; Plexiglas plate; microwave devices; optical fibre sensors; optical loop free space path; optical tuning; optoelectronic oscillators; refractive index measurement; Band pass filters; Delay; Electrooptic modulators; Microwave oscillators; Optical fibers; Optical filters; Optical resonators; Phase noise; Q factor; Radio frequency;
Conference_Titel :
Microwave photonics, 2008. jointly held with the 2008 asia-pacific microwave photonics conference. mwp/apmp 2008. international topical meeting on
Conference_Location :
Gold Coast, Qld
Print_ISBN :
978-1-4244-2168-8
Electronic_ISBN :
978-1-4244-2169-5
DOI :
10.1109/MWP.2008.4666653
