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Impact of H2 loading on the refractive index change in waveguides written by femtosecond laser pulses in pure silica glasses

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We investigate the influence of H2 loading on the fs-laser induced refractive index change (Δn) in pure fused silica. Δn obtained with the far-field characterization of inscribed waveguides shows that it can be increased with H2 loading.

© 2016 Optical Society of America

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