Analysis of etched long-period fibre grating and its response to external refractive index

Authors
Chiang, KS Liu, YQ Ng, MN Dong, XY
Citation
Ks. Chiang et al., Analysis of etched long-period fibre grating and its response to external refractive index, ELECTR LETT, 36(11), 2000, pp. 966-967
Citations number
7
Categorie Soggetti
Eletrical & Eletronics Engineeing
Journal title
ELECTRONICS LETTERS
ISSN journal
00135194 → ACNP
Volume
36
Issue
11
Year of publication
2000
Pages
966 - 967
Database
ISI
SICI code
0013-5194(20000525)36:11<966:AOELFG>2.0.ZU;2-O
Abstract
Analytical formulas are presented for the first time to describe the shift in the resonance wavelength of a long-period fibre grating (LPFG) in respon se to etching of the fibre cladding or a change in the external refractive index. The accuracy of the formulas is confirmed by comparison with numeric al simulations and experimental results. It is shown that the resonance wav elengths of an etched LPFG are more sensitive to the external refractive in dex than those of an unetched grating.