Strong asymmetric stresses arc-induced in pre-annealed nitrogen-doped fibres

• Type: Article in International Scientific Journal
• Date: 2006

Authors

Rego, G (Author) Other; Durr, F (Author) Other; Marques, PVS (Author) FCUP; Limberger, HG (Author) Other

Journal

Title: Electronics Letters

Vol. 42

Pages: 334-335

ISSN: 0013-5194

Publisher: Wiley-Blackwell

Indexing

ISI Web of Knowledge - 8 Citations

Scopus - 9 Citations

Other information

Authenticus ID: P-004-MQK

DOI: 10.1049/el:20063919

Abstract (EN): Long-period gratings were written using arc discharges in pristine nitrogen doped fibres. Comparison of the resulting gratings spectra show that the resonant positions of gratings in fibres pre-annealed at 1050 degrees C for 30 min are shifted towards shorter wavelengths and their coupling strength is considerably higher. The refractive index and residual stress profiles were measured before and after annealing, as well as the two-dimensional stress profiles inside the grating region. Arc discharges induce periodic and strong asymmetric stresses in the fibre core of the pre-annealed nitrogen doped fibre.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 2