Patent ID: 9702737
Date: 2017-07-11
CPC Classifications: G01D,G01H,G01S,G02B

Claim:
1. An optical ring resonator sensor array module for a passive SONAR system, comprising: a supporting structure; a silicon substrate mounted on the supporting structure, the silicon substrate including an optical waveguide and a plurality of optical ring resonators, the plurality of optical ring resonators distributed across the silicon substrate to form a two-dimensional array pattern thereof, the two-dimensional array forming at least two rows and at least two columns, with at least two optical ring resonators in each row and at least two optical ring resonators in each column, each of the plurality of optical ring resonators positioned adjacent to the optical waveguide, each of the plurality of optical ring resonators having a different predetermined diameter, the optical waveguide having an input for receiving light at a first end thereof and an output for emitting light at a second end thereof; and a top plate mounted over the silicon substrate, the top plate having a plurality of diaphragms, one diaphragm for each of the plurality of optical ring resonators, the diaphragms distributed on the top plate such that each of the plurality of diaphragms is positioned over an associated one of the plurality of optical ring resonators, each of the diaphragms configured to flex in response to externally applied acoustical pressure.