Abstract

We propose a heralded single photon source with three frequency modes multiplexed and operating in all telecom band by using cascaded χ(2) processes in a periodically poled lithium niobite (PPLN) waveguide. Our proof-of-principle result shows that each frequency mode reaches a coincidence count rate of ~10 kHz with a coincident-to-accidental ratio of 3×102.

© 2019 The Author(s)

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