Translator Disclaimer
24 September 1997 Frequency multiplexing of in-fiber Bragg grating sensors using tunable laser
Author Affiliations +
A method of interrogation of a quasi-distributed sensor in the frequency domain is discussed. The sensor consists of a series of pairs of the identical Bragg gratings imprinted in the fiber core along its length. Each pair of the Bragg gratings performs as a low reflective Fabry-Perot interferometer producing a cosine modulated reflection spectrum within a grating's main lobe. The detector signal represents the superposition of the modulated reflection spectra which can be decomposed using the fast Fourier transform.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Mikhail G. Shlyagin, Serguei V. Miridonov, and Diana Tentori "Frequency multiplexing of in-fiber Bragg grating sensors using tunable laser", Proc. SPIE 3099, Micro-optical Technologies for Measurement, Sensors, and Microsystems II and Optical Fiber Sensor Technologies and Applications, (24 September 1997);

Back to Top