Characterization of LPGs via Correlation Analysis of an Analytical Solution With Observed Transmission Spectra

Author

Carter, Robert M. ; Maier, Robert R. J. ; Biswas, Priyanka ; Bandyopadhyay, Supriyo ; Basumallick, Nandini ; Jones, Benjamin J. S. ; McCulloch, Scott ; Barton, J.S.

Author_Institution

Inst. of Photonics & Quantum Sci., Univ. of Heriot-Watt, Edinburgh, UK

Volume

31

Issue

18

fYear

2013

fDate

Sept.15, 2013

Firstpage

3014

Lastpage

3020

Abstract

In this paper, we describe a technique to characterize long period fiber gratings (LPG) by use of a correlation between the measured transmission spectrum and a theoretical model. The model is robust enough to require only a-priori knowledge of the fiber design and the inscription period. We demonstrate the application of this technique on an example LPG resulting in the calculation of the dispersive core index, length, and strength of the grating to better than experimental error. The technique is further expanded to allow for the modeling of metal jacketed long period gratings by use of an extended version of Erdogan´s model.

Keywords

diffraction gratings; light transmission; optical fibre dispersion; optical fibres; Erdogan model; LPG; correlation analysis; dispersive core index; fiber design a-priori knowledge; grating length; grating strength; inscription period; long period fiber gratings; long period grating; metal jacket; transmission spectra; Correlation; Couplings; Gratings; Indexes; Optical fiber dispersion; Optical fiber theory; Refractive index; Fiber Gratings; hydrogen; optical fiber sensors; palladium;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2013.2278075

Filename

6578111