Fabrication of Bragg gratings in microstructured Bi:SiO2 optical fiber using an ArF laser

An ArF excimer laser was used to fabricate Bragg gratings in Bi:SiO2 core - microstructured cladding optical fiber. Average and modulated refractive index changes of 2.7 × 10
^-4
and 1.0 × 10
^-4
were induced in pristine fiber. Fiber luminescence was also measured under 1064 nm pumping.