Abstract
An integrated design of ultra-high-speed Fiber Bragg Grating (FBG) interrogation system is illustrated and experimentally demonstrated. A Fourier Domain Mode Locked (FDML) laser is employed as a high-speed wavelength-swept light source. The use of the Mach-Zehnder interferometer (MZI) and the single-peak filter (SPF) overcomes the nonlinear effect and the scanning wavelength drift problem. A signal acquisition and peak-searching method based on the hardware is designed, allowing a real-time and multichannel interrogation. The controlled experiment has verified the feasibilities of the MZI and the SPF. Dynamic and static FBG experiments show that the integrated system has an accuracy of 0.02 nm, a stability of 0.006 nm, a linearity of 0.9994 and a 40 kHz demodulation frequency with 4 simultaneous interrogation channels.
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.
