Patent ID: 9658123
Date: 2017-05-23
CPC Classifications: G01L,H04R

Claim:
1. An optical pressure sensor comprising a housing, at least one outer membrane, wherein the at least one outer membrane is incorporated in one surface of the housing, and a waveguide attached inside the housing, the waveguide comprising at least one core for confining and guiding light, at least one distributed Bragg reflector located in said at least one core, and at least one inner deflecting element forming at least a part of the core, wherein the at least one inner deflecting element forms one side of the waveguide, wherein the pressure sensor is configured such that said at least one inner deflecting element is connected to the at least one outer membrane such that the geometry and/or dimension of the at least one core is changed when the at least one outer membrane is submitted to pressure, or wherein the pressure sensor is configured such that a connection can be established between said at least one inner deflecting element and said at least one outer membrane such that the geometry and/or dimension of the at least one core is changed when the at least one outer membrane is submitted to a predefined level of pressure, wherein the at least one outer membrane and the at least one inner deflecting element form two separate deflecting elements.