title: Continuous wave ultraviolet light-induced fiber Bragg gratings in few- and single-mode microstructured polymer optical fibers.
abstract: 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.
authors.affiliation: Photonics Research Group, Aston University, Birmingham B4 7ET, UK. dobbhl1@aston.ac.uk
authors.forename: Helen
authors.initials: H
authors.lastname: Dobb
authors.forename: David J
authors.initials: DJ
authors.lastname: Webb
authors.forename: Kyriacos
authors.initials: K
authors.lastname: Kalli
authors.forename: Alexander
authors.initials: A
authors.lastname: Argyros
authors.forename: Maryanne C J
authors.initials: MC
authors.lastname: Large
authors.forename: Martijn A
authors.initials: MA
authors.lastname: van Eijkelenborg