General Electric Company
Integrated fiber-optic perturbation sensor

Abstract:

A system may include a substrate, a computing device that performs one or more edge processing operations disposed on the substrate, and an integrated photonic circuit that performs distributed acoustic sensing operations and is also disposed on the substrate. The integrated photonic circuit may include a light source, a circulator, and a photodiode. The light may transmit a first light pulse. The circulator may transmit the first light pulse to a fiber-optic cable. The circulator may also receive a back-scattered light pulse based at least in part on the first light pulse. The photodiode may receive at least a portion of the back-scattered light pulse. The photodiode may generate one or more electrical signals based at least in part on the portion of the back-scattered light pulse.