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High-Frequency Fiber Bragg Grating Sensing Interrogation System Using Sagnac-Loop-Based Microwave Photonic Filtering
Vise andre og tillknytning
2009 (engelsk)Inngår i: IEEE Photonics Technology Letters, ISSN 1041-1135, E-ISSN 1941-0174, Vol. 21, nr 8, s. 519-521Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A novel high-frequency fiber Bragg grating (FBG) sensing interrogation system by using fiber Sagnac-loop-based microwave photonic filtering is proposed and experimentally demonstrated. By adopting the microwave photonic filtering, the wavelength shift of sensing FBG can be converted into amplitude variation of the modulated electronic radio-frequency (RF) signal. In the experiment, the strain applied onto the sensing FBG has been demodulated by measuring the intensity of the recovered RF signal, and by modulating the RF signal with different frequencies, different interrogation sensitivities can be achieved.

sted, utgiver, år, opplag, sider
2009. Vol. 21, nr 8, s. 519-521
Emneord [en]
Chirped fiber Bragg grating (CFBG), microwave photonics, Sagnac loop, strain sensor
Identifikatorer
URN: urn:nbn:se:kth:diva-18425DOI: 10.1109/lpt.2009.2014077ISI: 000266054900009OAI: oai:DiVA.org:kth-18425DiVA, id: diva2:336472
Merknad
QC 20100525Tilgjengelig fra: 2010-08-05 Laget: 2010-08-05 Sist oppdatert: 2017-12-12bibliografisk kontrollert

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