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Transversal Loading Sensor Based on Tunable Beat Frequency of a Dual-Wavelength Fiber Laser
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2009 (English)In: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 21, no 14, 987-989 p.Article in journal (Refereed) Published
Abstract [en]

Microwave signal generation by using the photonic beating from a phase-shift fiber Bragg grating (PS-FBG)-based dual-wavelength laser is proposed and experimentally demonstrated. The dual-wavelength laser is formed by a linear cavity, in which a PS-FBG is used as a dual-wavelength selective component. Transversal loading on the PS-FBG enhances the birefringence of the optical fiber and consequently makes the transmission peak of the PS-FBG splitting into two sharp transmission peaks of orthogonal polarizations. The wavelength spacing between the two transmission peaks increases with the transversal loading on the PS-FBG, thus making the polarization beating frequency increase. This property is exploited in a transversal loading sensor.

Place, publisher, year, edition, pages
2009. Vol. 21, no 14, 987-989 p.
Keyword [en]
Beating, microwave generation, phase-shift fiber Bragg grating, (PS-FBG), transversal loading, generation, pressure
URN: urn:nbn:se:kth:diva-18607DOI: 10.1109/lpt.2009.2021484ISI: 000268019600011OAI: diva2:336654
QC 20100525Available from: 2010-08-05 Created: 2010-08-05 Last updated: 2013-11-19Bibliographically approved

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Fu, HongyanHe, Sailing
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