Empirical Relations for Design of Linear Edge Filters Using Apodized Linearly Chirped Fiber Bragg Grating

Apodized linearly chirped Bragg grating (CFBG) filters have been studied with a view of determining an optimal set of grating parameters to design and fabricate linear edge filter for Bragg grating sensor demodulation. A rigorous numerical computation towards understanding the relation of all the gr...

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Veröffentlicht in:	Journal of lightwave technology 2008-12, Vol.26 (24), p.3853-3859
Hauptverfasser:	Bandyopadhyay, S., Biswas, P., Pal, A., Bhadra, S.K., Dasgupta, K.
Format:	Artikel
Sprache:	eng
Schlagworte:	Apodization Applied sciences Band pass filters Bandwidth Bragg gratings Chirp Circuit properties Computational efficiency Computing time Councils Demodulation Detection, estimation, filtering, equalization, prediction edge filters Electric, optical and optoelectronic circuits Electronics Empirical analysis Exact sciences and technology fiber Bragg grating (FBG) fiber Bragg grating (FBG) sensor interrogation Fiber gratings Information, signal and communications theory Integrated optics. Optical fibers and wave guides linear chirp Mathematical models Nonlinear filters Numerical analysis Optical and optoelectronic circuits Optimization Sensor phenomena and characterization Signal and communications theory Signal, noise Telecommunications and information theory Wavelength measurement
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Zusammenfassung:	Apodized linearly chirped Bragg grating (CFBG) filters have been studied with a view of determining an optimal set of grating parameters to design and fabricate linear edge filter for Bragg grating sensor demodulation. A rigorous numerical computation towards understanding the relation of all the grating parameters with filter characteristics like the linear bandwidth and slope efficiency produced some simple empirical formula for the design of edge filters of specific desired characteristics. The results are corroborated with experiments.
ISSN:	0733-8724 1558-2213
DOI:	10.1109/JLT.2008.928192