Reflection spectra of etched FBGs under the influence of axial contraction and stress-induced index change
Document Type
Article
Publication Date
1-1-2013
Abstract
We present a new theoretical model for the broadband reflection spectra of etched FBGs which includes the effects of axial contraction and stress-induced index change. The reflection spectra of the etched FBGs with several different taper profiles are simulated based on the proposed model. In our observation, decaying exponential profile produces a broadband reflection spectrum with good uniformity over the range of 1540-1560 nm. An etched FBG with similar taper profile is fabricated and the experimental result shows good agreement with the theoretical model.
Keywords
Reflection spectra, Etched FBGs, Axial contraction, Stress-induced index change
Divisions
PHYSICS
Publication Title
Optics Express
Volume
21
Issue
12
Publisher
Optical Society of America
COinS