Abstract

Energy dose ranges for fabrication of subsurface and ablated ridge waveguides were defined using a low repetition rate femtosecond laser. The waveguides were written along the width of water-white glass slides. The buried waveguides written between 0.23 and $0.62\mathrm{\mu J}/{\mathrm{\mu m}}^3$ energy dose show strong guidance at 633 nm, reaching in the best cases propagation losses of 0.7 dB/cm. Meanwhile, the ridge waveguides were fabricated between 2.04 and $31.9\mathrm{\mu J}/{\mathrm{\mu m}}^3$, with a best case of 3.1 dB/cm. Outcomes of this study are promising for use in the manufacturing of sensing devices.

© 2016 Optical Society of America

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