Abstract
An approach for suppressing the abrupt half the wavelength errors in case of spectral interferometric interrogation of optical fiber sensors is proposed. The approach was derived from theoretical analysis of least-squares fitting of interference signal and is based on estimating the additional phase shift in the interference scheme. The approach was experimentally validated through estimation of the Gouy phase in an extrinsic Fabry-Perot interferometer and eliminating abrupt half the wavelength errors which took place when the interferometer was simultaneously heated and bent. The proposed signal processing approach can be applied for increasing sensing resolution and robustness of low-cost fiber-optic interferometric sensors, paving the way for their wide-spread use.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
