Abstract: A time division multiplexed topology has been implemented using four Michelson sensor simulators and a transceiver link. The topology ensures that no light returning from the network is injected back into the laser diode. The phase sensitivity of the sensors is limited by the phase noise of the laser. Coherent noise due to Rayleigh backscattered light mixing with the signal is significantly smaller than this phase noise. A demodulated sensitivity of 25 $mu@rad/$ROOT@Hz at 1 kHz has been achieved using the differentiate-cross- multiply technique. !11
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