Photonic Integrated Circuit (PIC), pressure sensing system comprising such a PIC and method for pressure sensing using such a pressure sensing system.

摘要

The invention relates to a photonic integrated circuit (PIC) for use in a pressure sensing system comprising an integrated photonic component (IPC), configured to be exposed to an external pressure and to generate a wavelength response based on deformation, wherein the wavelength response comprises a pressure-induced wavelength response and a temperature-induced wavelength response. The pressure sensing system further comprises an incoming waveguide for coupling a light source to an optical input of the IPC and an outgoing waveguide for coupling an optical output of the IPC to analysis means. The pressure sensing system further comprises temperature correction means, wherein the temperature correction means provide information relating to the temperature-induced wavelength response. The present invention further relates to a pressure sensing system comprising a PIC as described above. The present invention further relates to a method for pressure sensing using a pressure sensing system as described above.