Femtosecond Laser Writing of Phase-Shifted Bragg Grating Waveguides in Fused Silica
Femtosecond Laser Writing of Phase-Shifted Bragg Grating Waveguides in Fused Silica
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Date
2009
Authors
J. S. Aitchison
Jason R. Grenier
Peter R. Herman
Paulo Vicente Marques
Luís André Fernandes
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Abstract
Phase-shifted Bragg Grating Waveguide filters were formed in bulk glass for the first time by femtosecond laser direct writing. A narrow, tunable 0.1-nm transmission window at 1550-nm is demonstrated for tunable Pi and other phase-shifts.