Characterization of chirped fiber bragg gratings : identification and removal of cladding-mode perturbations in measurement data

Journal
Journal of lightwave technology  
Volume
29
Issue
12
Start Page
1783
End Page
1789
Article Number
5746487
Citation
Journal of Lightwave Technology 29 (12): Art. 5746487 = pp 1783-1789 (2011)
Publisher DOI
10.1109/JLT.2011.2141117
Scopus ID
2-s2.0-79958720485
Publisher
Optica
In chirped fiber Bragg gratings, structural perturbations and the effect of cladding-mode coupling are shown to be distinguishable. To this end, the absolute value and the phase of the experimentally determined complex coupling coefficient are Fourier transformed separately, yielding a set of discrete lines that can be clearly identified and be traced back to cladding-modes. Removing these lines yields the grating properties in the absence of cladding-modes.
Subjects
Cladding-modes
coupling coefficient
fiber Bragg gratings (FBGs)
reflection factor
DDC Class
600: Technik
620: Ingenieurwissenschaften