Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9699592 | Optics and Lasers in Engineering | 2005 | 9 Pages |
Abstract
A novel sensitive technique for the determination of losses in fiber cavities is presented. The method is based on the cavity ringdown scheme implemented in silica-based single-mode fibers. Bending losses of fiber cavities of different lengths have been measured showing all an oscillating behavior with respect to the curvature radius of the fiber as predicted by a theoretical model. The best minimum detectable absorbance per cavity pass achieved by this new method is 1.72Ã10â3Â dB within a 10Â m-long cavity. This limit suffices well for an accurate determination of optical bending losses even in bend-insensitive fibers. Furthermore, the comparison of the measured bending losses with a theoretical model allows the extraction of different fiber parameters. Good agreement has been found between the experimentally derived parameters and literature data.
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Electrical and Electronic Engineering
Authors
Daniel E. Vogler, Ana Lorencak, Julien M. Rey, Markus W. Sigrist,