Continuous wave ultraviolet light-induced fiber Bragg gratings in few- and single-mode microstructured polymer optical fibers.
We report observations and measurements of the inscription of fiber Bragg gratings (FBGs) in two different types of microstructured polymer optical fiber: few-mode and an endlessly single mode. Contrary to the FBG inscription in silica microstructured fiber, where high-energy laser pulses are a prerequisite, we have successfully used a low-power cw laser source operating at 325 nm to produce 1 cm long gratings with a reflection peak at 1570 nm. Peak reflectivities of more than 10% have been observed.
Dobb
Helen
H
Photonics Research Group, Aston University, Birmingham B4 7ET, UK. dobbhl1@aston.ac.uk
Webb
David J
DJ
Kalli
Kyriacos
K
Argyros
Alexander
A
Large
Maryanne C J
MC
van Eijkelenborg
Martijn A
MA