Fabrication of higher order Bragg gratings in microstructured polymer fibers

Abstract

We present the experimental investigations of the Bragg gratings writing process in the microstructured polymer fiber using UV beam of 325 nm wavelength and standard phase mask technique. The good quality higher order peaks placed at λ B /2=782 nm and 2λ B /3=1040 nm for the grating with primary peak at λ B =1555 nm were experimentally demonstrated for the first time. The growth dynamics for all the peaks was investigated.