Phase-controlled integrated photonic quantum circuits

Details Phase-controlled integrated photonic quantum circuits Phase-controlled integrated photonic quantum circuits

2009-05-18

arxiv.org/abs/0905.2933v2

Optics Express, Vol. 17 Issue 16, pp.13516-13525 (2009)

Physics

Quantum Physics

Published version with minor changes

Scientific paper

10.1364/OE.17.013516

Scalable photonic quantum technologies are based on multiple nested interferometers. To realize this architecture, integrated optical structures are needed to ensure stable, controllable, and repeatable operation. Here we show a key proof-of-principle demonstration of an externally-controlled photonic quantum circuit based upon UV-written waveguide technology. In particular, we present non-classical interference of photon pairs in a Mach-Zehnder interferometer constructed with X couplers in an integrated optical circuit with a thermo-optic phase shifter in one of the interferometer arms.

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