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Acoustic microscopy of cladded optical fibers

C.K.Jen, C.Neron, J.F.Bussiere, K.Abea, L.Lib, R.Lowec, J.Kushibikid

IMRI, National Research Council of Canada, Boucherville, Quebec, Canada J4B 6Y4
a) National Optics Institute., Sainte-Foy, Québec, Canada G1V 4C5
b) Dept. of Elect. and Computer Science, University of Southampton, U.K.
c) Optical Cable Div., Northern Telecom Ltd., Saskatoon, Saskachewan, Canada S7K 3L7
d) Department of Electrical Eng., Tohoku University, Sendai, Japan 980

Abstract

Leaky surface acoustic wave velocity (vLSAW) and attenuation (αLSAW) profiles across the diameters of cladded glass fibers or fiber preforms are presented. Optical fibers with different dopants such as GeO2, F, B2O3, etc., and dopant concentrations have been investigated. The role of acoustic profiles across the core and cladding regions in the design of optical fibers for several device applications is outlined. By comparing vLSAW profiles with the corresponding optical refractive index profile, n, the relation between ΔvLSAW/vLSAW and Δn/n is obtained for several dopants. Potential applications of cylindrical glass rods with graded acoustic velocity profiles are also discussed.


IEEE Ultrasonics Symposium Montreal 3-6 Oct (1989)

doi: 10.1109/ULTSYM.1989.67104

Southampton ePrint id: 77515

 

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Copyright University of Southampton 2006