MATEC Web of Conferences
Volume 8, 2013Progress in Ultrafast Laser Modifications of Materials
|Number of page(s)||2|
|Section||Photonics and optical components|
|Published online||18 November 2013|
Low bend loss waveguides and photonic bandgaps enabled by high index contrast modifications
1 MQ Photonics Research Centre, Dept. of Physics and Astronomy, Macquarie University, NSW 2109, Australia
2 Centre for Ultrahigh-bandwidth Devices for Optical Systems, (CUDOS), Australia
3 CEIT and Tecnun, University of Navarra, Pº Manuel de Lardizabal, Donostia-San Sebastian,, 20018 Spain
4 Macquarie University Research Centre in Astronomy, Astrophysics and Astrophotonics, Dept. of Physics and Astronomy, Macquarie University, NSW 2109, Australia
5 Australian Astronomical Observatory (AAO), PO Box 915, North Ryde NSW 1670 Australia
6 Sydney Institute for Astronomy (SIFA), School of Physics, University of Sydney, 2006, Australia
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We present a novel process to fabricate high index contrast waveguides in boro-aluminosilicate glass based on differential thermal post-annealing. Firstly, large high index contrast multimode waveguides are inscribed and subsequently annealed to achieve single-mode operation. We applied this technique to significantly increase the throughput of 3D astrophotonic devices and to demonstrate anti-resonant (ARROW) guiding in a laser written structure for the first time.
© Owned by the authors, published by EDP Sciences, 2013
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