BRAGG GRATING INDUCED CLADDING MODE-COUPLING CAUSED BY ULTRA-VIOLET LIGHT-ABSORPTION

Authors
POULSEN T BERENDT MO BJARKLEV A GRUNERNIELSEN L SOCCOLICH CE
Citation
T. Poulsen et al., BRAGG GRATING INDUCED CLADDING MODE-COUPLING CAUSED BY ULTRA-VIOLET LIGHT-ABSORPTION, Electronics Letters, 34(10), 1998, pp. 1007-1009
Citations number
8
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
34
Issue
10
Year of publication
1998
Pages
1007 - 1009
Database
ISI
SICI code
0013-5194(1998)34:10<1007:BGICMC>2.0.ZU;2-9
Abstract
A numerical model based on coupled-mode theory and accurate representa tion of the refractive index is shown to reproduce the transmission ch aracteristics of Bragg gratings in depressed cladding fibres. It is de monstrated that a ghost dip on the short wavelength side of the Bragg reflection is caused by asymmetry from transverse absorption of ultra- violet light during writing, and cannot be eliminated by assuring zero blaze angle.