Suppression of cladding mode coupling in Bragg grating using Ge2O-B2O3 codoped photosensitive cladding optical fibre

Authors
Oh, K Kim, JM Seo, HS Paek, UC Kim, MS Choi, BH
Citation
K. Oh et al., Suppression of cladding mode coupling in Bragg grating using Ge2O-B2O3 codoped photosensitive cladding optical fibre, ELECTR LETT, 35(5), 1999, pp. 423-424
Citations number
6
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
35
Issue
5
Year of publication
1999
Pages
423 - 424
Database
ISI
SICI code
0013-5194(19990304)35:5<423:SOCMCI>2.0.ZU;2-H
Abstract
A new type of photosensitive optical fibre codoped with Ge2O-B2O, in both t he core and cladding has been fabricated for applications in Bragg gratings . Coupling of the fundamental core mode into the cladding modes was suppres sed with a narrow 3dB bandwidth in the Bragg grating. An increase in photos ensitivity was also achieved by using high reflectivity Bragg gratings impr inted without the need for any hydrogen treatment.