Tomographic stress profiling of arc-induced long-period fiber gratings

Author

Durr, F. ; Rego, G. ; Marques, P. V S ; Semjonov, Sergey L. ; Dianov, Evgeny M. ; Limberger, H.G. ; Salathe, R.P.

Author_Institution

Adv. Photonics Lab., Ecole Polytech. Fed. de Lausanne, Switzerland

Volume

23

Issue

11

fYear

2005

Firstpage

3947

Lastpage

3953

Abstract

Long-period fiber gratings (LPGs) have been inscribed in nitrogen-doped fibers by electrical arc discharge. The influence of drawing tension as well as external load applied during arc discharge on coupling strength has been investigated. The influence of drawing tension on the grating´s coupling strength is found to be negligible, whereas the coupling strength increases considerably with external load. Tomographic stress profiles of the fiber have been recorded before and after electric arc discharge. The axial stress modulation in the core region of the grating was found to be smaller than 10 MPa and is thus too small to be the dominating mechanism for grating formation.

Keywords

arcs (electric); diffraction gratings; drawing (mechanical); nitrogen; optical fibre couplers; optical fibre fabrication; optical fibre testing; stress measurement; axial stress modulation; coupling strength; drawing tension; electrical arc discharge; long-period fiber gratings; nitrogen-doped fibers; tomographic stress profiling; Arc discharges; Fiber gratings; Glass; Optical device fabrication; Optical fiber communication; Optical fiber devices; Optical fiber filters; Optical fibers; Stress; Tomography; Arc discharges; gratings; optical fiber filters; stress measurement;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2005.857763

Filename

1561428