Selective aperture arrays for seismic monitoring

Abstract

A seismic sensing device has a light source, detection measuring and processing device in combination with an optical seismic sensor reconfigurable array. The light source, detection measuring and processing device provides a selective optical signal to the optical seismic sensor reconfigurable array, and responds to an optical seismic sensor reconfigurable array signal, for providing information about a seismic force to be sensed. The optical seismic sensor reconfigurable array responds to the selective optical signal, and responds to the seismic force, for providing an optical seismic sensor reconfigurable array signal containing information about the seismic force over at least one selective length of the optical seismic sensor reconfigurable array. The optical seismic sensor reconfigurable array includes an optical fiber having optical seismic sensors, each having at least one sensor coil arranged between a respective adjacent Fiber Bragg Grating partial reflector pair having a selectable wavelength. The optical seismic sensor reconfigurable array includes a common optical seismic sensor having a sensor coil arranged between both first and second adjacent Fiber Bragg Grating partial reflector pairs having first and second selectable wavelengths λ1, λ2.

Dependencies are inferred from the claim text.