High Repetition Rate, Full-Spectral Scanning of Fiber Bragg Gratings for Dynamic Sensing

摘要

We demonstrate the capture of fiber Bragg grating full-spectral data at rates up to 300 kHz. Rapid capture of the entire reflection spectrum at such high reading rates shows important features that are missed when using systems that merely track changes in the peak location of the spectrum. The update rate of 300 kHz allows resolution of features that occur on transient time scales as short as 3.3 microseconds.