Low-noise bimodal all-fibre sensor using depolarized light |
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| Authors: | Wojtek J Bock Tinko A Eftimov |
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| Affiliation: | Laboratoire d'Optoélectronique, Département d'Informatique , Université du Québec à Hull , Hull, J8Y 3X7, Québec, Canada |
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| Abstract: | Abstract A low-noise scheme for an all-fibre bimodal sensor is presented. Depolarized excitation of the sensor from a lower coherency source is used to eliminate polarimetric noises which inevitably arise due to polarizer/analyser and fibre-to-fibre misalignments. The sensor features simplicity and simultaneous detection of the X- and Y-polarized interference signals. Overall noise level as low as 0.8% is achieved. |
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