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Theoretical and experimental analysis of side-polished fiber optofluidic variable attenuator

Dudus̈, Anna and Blue, Robert and Zagnoni, Michele and Stewart, George and Uttamchandani, Deepak (2014) Theoretical and experimental analysis of side-polished fiber optofluidic variable attenuator. In: International Conference on Optical MEMS and Nanophotonics. IEEE, pp. 67-68. ISBN 9780992841423

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We report a broadband variable optical attenuator employing a side-polished single-mode optical fiber placed on an electrowetting-on-dielectric (EWOD) platform. Both theoretical and experimental analysis have been carried out on this system. Experimentally, a maximum attenuation of 25 dB was obtained in the wavelength range between 1520 nm and 1560 nm. This compares to a predicted maximum theoretical attenuation of 28 dB.