Continuous wave ultraviolet light-induced fiber bragg gratings in few- and single-mode microstructured polymer optical fibers
Journal
Optics letters
Date Issued
December 15, 2005
DOI
10.1364/OL.30.003296
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.