DING-WEI HUANGLiu, Wen-FungWen-FungLiuWu, Cheng-WenCheng-WenWuCHIH-CHUNG YANG2009-03-112018-07-062009-03-112018-07-06200010411135http://www.scopus.com/inward/record.url?eid=2-s2.0-0034135582&partnerID=MN8TOARShttp://ntur.lib.ntu.edu.tw//handle/246246/144168http://ntur.lib.ntu.edu.tw/bitstream/246246/144168/1/03.pdfhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-0034135582&doi=10.1109%2f68.823508&partnerID=40&md5=0039ae72dae29d20bff47ccdd7a7863aWe report a novel device that modulates the Bragg reflectivity of a fiber grating by exciting the transverse vibration of the fiber through an acoustic wave. The excitation of the transverse vibration, leading to fiber microbending, induces the coupling of the fiber core mode into cladding modes. This leads to the reduction of core-mode power and hence that of Bragg reflection. This mechanism provides us a means to control the reflectivity after a fiber Bragg grating is fabricated. The numerical results based on a simple micro-bending model agree well in trend with the experimental data.application/pdf47282 bytesapplication/pdfen-US[SDGs]SDG7Acoustic waves; Light reflection; Optical fibers; Optical filters; Fiber Bragg grating (FBG); Diffraction gratingsjournal article10.1109/68.8235082-s2.0-0034135582WOS:000085414500026http://ntur.lib.ntu.edu.tw/bitstream/246246/144168/1/03.pdf