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Published September 9, 2013 | Submitted + Published
Journal Article Open

A chip-scale, telecommunications-band frequency conversion interface for quantum emitters

Abstract

We describe a chip-scale, telecommunications-band frequency conversion interface designed for low-noise operation at wavelengths desirable for common single photon emitters. Four-wave-mixing Bragg scattering in silicon nitride waveguides is used to demonstrate frequency upconversion and downconversion between the 980 nm and 1550 nm wavelength regions, with signal-to-background levels > 10 and conversion efficiency of ≈ −60 dB at low continuous wave input pump powers (< 50 mW). Finite element simulations and the split-step Fourier method indicate that increased input powers of ≈10 W (produced by amplified nanosecond pulses, for example) will result in a conversion efficiency > 25 % in existing geometries. Finally, we present waveguide designs that can be used to connect shorter wavelength (637 nm to 852 nm) quantum emitters with 1550 nm.

Additional Information

© 2013 The Optical Society. Received 27 Jun 2013; revised 23 Aug 2013; accepted 24 Aug 2013; published 6 Sep 2013. The authors thank Yoshitomo Okawachi for helpful comments on this work. I.A and S.A. acknowledge support under the Cooperative Research Agreement between the University of Maryland and NIST-CNST, Award 70NANB10H193. The authors also acknowledge the DARPA MESO program for partial support.

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Published - oe-21-18-21628.pdf

Submitted - 1304.5754v2.pdf

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