Abstract
A high resolution static strain measurement system using distributed feedback fibre lasers (DFB-FLs) and beat frequency technique is demonstrated. Two independent fibre lasers are used in the sensor head. One fibre laser is used to sense the strain and the other is stress-free and used as a reference. In the interrogation system, a third fibre laser is used to generate the beat notes with the two fibre lasers in the sensor head. The beat frequency difference of the two fibre laser is detected and the strain can be calculated. The experiment result shows that the static strain resolution is better than 0.25 nano-strain (ne).
Sign-in/Register to access full text options 
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.
