UV written integrated waveguides for quantum photonics

Stute, Andreas

Matthew T. Posner, Rex H. S. Bannerman, Devin H. Smith +3 more

The reliable generation of high-quality single photons has long been a goal of research in photonic quantum information. Direct-UV-written (DUW) silica-on-silicon waveguides provide a reproducible, uniform, low-loss, and fiber-compatible platform for the integration of spontaneous four-wave mixing-based heralded single-photon sources [1]. To overcome limitations caused by Rayleigh scattering, which induces loss, and for compatibility with telecommunications equipment, it is desirable to move to the C-band. Waveguides with birefringence greater than 4.5×10-4are required in this wavelength of operation [2]. We report the development of a high-birefringence silica-on-silicon integrated platform for heralded single-photon sources at telecom wavelengths.

Nobuyuki Matsuda

Paolo L. Mennea, Benjamin J. Metcalf, Justin B. Spring +11 more

We present details of the UV-written silica-on-silicon platform for integrated quantum optics with reference to recent results, and discuss the fabrication challenges involved in scaling to larger experiments.

Jonathan C. F. Matthews, Alberto Politi, André Stefanov +14 more

Matthew T. Posner, T. Hiemstra, Paolo L. Mennea +8 more

using the flame hydrolysis deposition process. The technology provides a route towards the scalability of silica-on-silicon integrated components for photonic quantum experiments.