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Proceedings Paper

Distributed probing of the orientation of two-mode birefringent fiber using pulsed acoustic guided waves
Author(s): Jan Ove Askautrud; Helge E. Engan
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Paper Abstract

The coupling between two spatial optical modes of a birefringent elliptical core fiber due to a travelling acoustic wave is experimentally investigated. Acoustic horns are used to excite acoustic flexural waves on a fiber. The distributed interaction of the LP01 and the LP11 modes along a strip section of fiber is determined by RF pulsing the acoustic wave. Particular attention has been given to studying the local orientation and twisting of the fiber along the acousto-optic coupling region. High coupling efficiency is also demonstrated.

Paper Details

Date Published: 1 August 1990
PDF: 10 pages
Proc. SPIE 1267, Fiber Optic Sensors IV, (1 August 1990); doi: 10.1117/12.20289
Show Author Affiliations
Jan Ove Askautrud, ELAB-RUNIT (Norway)
Helge E. Engan, Norwegian Institute of Technology (Norway)


Published in SPIE Proceedings Vol. 1267:
Fiber Optic Sensors IV
Ralf Th. Kersten, Editor(s)

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