Abstract
A fiber Bragg grating (FBG) consists of a periodic modification in the refractive core index along a short section of a germanosilicate optical fiber. Photorefractive intracore fiber Bragg gratings are attracting intense interest because of their wide field of application: they can be used in telecommunication systems 1 – 4 for wavelength division multiplexing (WDM) devices, wavelength-selective couplers, switches, integrated laser cavities (where a pair of gratings acts as partial or total narrow-band reflecting mirrors), dispersion compensators, as well as in sensing systems,5 either as single element or in a quasi-distributed array. Due to their compatibility with the transmission medium and the relative ease of their fabrication, the use of FBG as sensors, together with existing fiber technology, opens up a whole range of new opportunities for novel applications in areas such as smart structures and materials.
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Falciai, R., Fontana, R., Schena, A., Scheggi, A.M. (1997). Fiber Bragg Gratings as Temperature and Strain Sensors. In: Martellucci, S., Chester, A.N. (eds) Diffractive Optics and Optical Microsystems. Springer, Boston, MA. https://doi.org/10.1007/978-1-4899-1474-3_25
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DOI: https://doi.org/10.1007/978-1-4899-1474-3_25
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