Passive multiplexing system for fiber-optic sensors

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Abstract
A multiplexing technique is described that requires no electrical power at the sensor locations and allows the signals from many sensors to be carried on a single optical fiber. The multiplexing technique is compatible with the use of multimode fiber-optic technology and intensity modulation transduction mechanisms. The system described represents a first step toward an ultimate goal of a complete passive fiber-optic sensor system. The results obtained with this system allow predictions to be made of ultimate system performance.

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