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Proceedings Paper

Engineering reconfigurable laser-written circuits for practical quantum metrology
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Paper Abstract

We fabricate a series of reconfigurable waveguide interferometers using laser machining techniques and charac- terize them classically. The 3D nature of the ultrafast laser writing technique allows for the fabrication of unique multi-arm interferometers not possible in planar platforms. We demonstrate selectivity between multiple phase shifters in a single interferometer by patterning the chip surface using picosecond laser ablation in a separate step. Microfluidic elements for making practical measurements on-chip are incorporated by machining channels within the substrate to interact with waveguide modes. Our results provide a path toward practical implementation of quantum metrology protocols requiring multiple interferometer arms and tunable phases.

Paper Details

Date Published: 1 March 2016
PDF: 10 pages
Proc. SPIE 9750, Integrated Optics: Devices, Materials, and Technologies XX, 97500U (1 March 2016); doi: 10.1117/12.2214048
Show Author Affiliations
Zachary Chaboyer, Macquarie Univ. (Australia)
Alex Stokes, Macquarie Univ. (Australia)
M. J. Steel, Macquarie Univ. (Australia)
Michael J. Withford, Macquarie Univ. (Australia)

Published in SPIE Proceedings Vol. 9750:
Integrated Optics: Devices, Materials, and Technologies XX
Jean-Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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