A 14-element interferometric sensor array based on a hybrid time/wavelength division addressing scheme is reported. The system uses two time-division addressed sub-arrays operating at 790 nm and 835 nm which are addressed via common input/output fibres using WDM couplers. Preliminary results obtained show crosstalk levels < −50 dB electrical.
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A.D. Kersey (1991) studied this question.
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