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arXiv · 1705.10285

Femtosecond laser inscription of Bragg grating waveguides in bulk diamond

V. Bharadwaj·A. Courvoisier·T. T. Fernandez·R. Ramponi·G. Galzerano·J. Nunn·M. J. Booth·R. Osellame·S. M. Eaton·P. S. Salter
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Abstract

Femtosecond laser writing is applied to form Bragg grating waveguides in the diamond bulk. Type II waveguides are integrated with a single pulse point-by-point periodic laser modification positioned towards the edge of the waveguide core. These photonic devices, operating in the telecommunications band, allow for simultaneous optical waveguiding and narrowband reflection from a 4th order grating. This fabrication technology opens the way towards advanced 3D photonic networks in diamond for a range of applications.

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V. Bharadwaj, A. Courvoisier, T. T. Fernandez, R. Ramponi, G. Galzerano, J. Nunn, M. J. Booth, R. Osellame, S. M. Eaton, P. S. Salter. 2017-09-01. Femtosecond laser inscription of Bragg grating waveguides in bulk diamond. https://doi.org/10.1364/ol.42.003451

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