Bragg gratings in air-silica structured fibers.
We report on grating writing in air-silica structured optical fibers with pure silica cores by use of two-photon absorption at 193 nm. A decrease in propagation loss with irradiation was observed. The characteristic growth curves were obtained.
Groothoff
N
N
Optical Fibre Technology Centre, University of Sydney, 206 National Innovation Centre, Eveleigh 1430, Sydney, NSW, Australia.
Canning
I
I
Buckley
E
E
Lyttikainen
K
K
Zagari
J
J