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We propose a multisensor network where the refractive index modulators are distributed in cascade along the optical fibre. Reflections at fibre glass-monitoring medium interfaces provide a train of time multiplexed pulses. Backscattered radiation in the fibre serves as a reference channel for the individual sensors which can be designed for temperature. pressure, chemical composition measurements. AbstractWe propose a multisensor network where the refractive index modulators are distributed in cascade along the optical fibre. Reflections at fibre glass-monitoring medium interfaces provide a train of time multiplexed pulses. Backscattered radiation in the fibre serves as a reference channel for the individual sensors which can be designed for temperature, pressure, chemical composition measurements.

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