135 citations · 446 across the 12 of their papers we have counts for
8 papers · 1 filter
The effects of filtering on the purity of heralded single photons from parametric sources
Daniel R. Blay, M. J. Steel, L. G. Helt
Optical quantum protocols are reliant on the production of highly pure single photons. However, most parametric heralded single photon sources possess spectral correlations, limiti…
Effect of dark counts on single photon heralding with quasi-number-resolving detection schemes
L. G. Helt, M. J. Steel
We consider photon heralding with quasi-number-resolving detection schemes and account for detection efficiencies and dark count probabilities. With a straightforward formalism, we…
Parasitic Photon-Pair Suppression via Photonic Stop-Band Engineering
L. G. Helt, Agata M. Branczyk, Marco Liscidini +1
We calculate that an appropriate modification of the field associated with only one of the photons of a photon pair can suppress generation of the pair entirely. From this general…
Proposal for an Integrated Raman-free Correlated Photon Source
Daniel R. Blay, L. G. Helt, M. J. Steel
We propose a dual-pump third-order nonlinear scheme for producing pairs of correlated photons that is less susceptible to Raman noise than typical spontaneous four wave mixing meth…
Tuneable quantum interference in a 3D integrated circuit
Zachary Chaboyer, Thomas Meany, L. G. Helt +2
Integrated photonics promises solutions to questions of stability, complexity, and size in quantum optics. Advances in tunable and non-planar integrated platforms, such laser-inscr…
Parasitic nonlinearities in photon pair generation via integrated spontaneous four-wave mixing: critical problem or distraction?
L. G. Helt, M. J. Steel, J. E. Sipe
We consider integrated photon pair sources based on spontaneous four-wave mixing and derive expressions for the pump powers at which various nonlinear processes become relevant for…
Non-classical interference in integrated 3D multiports
Thomas Meany, Michael Delanty, Simon Gross +3
We demonstrate three and four input multiports in a three dimensional glass platform, fabricated using the femtosecond laser direct-write technique. Hong-Ou-Mandel (HOM) interferen…
Discretely-observable continuous time quantum walks on Möbius strips and other exotic structures in 3D integrated photonics
Michael Delanty, M. J. Steel
We theoretically analyze the dynamical evolution of photonic quantum walks on Möbius strips and other exotic structures in 3D integrated photonics. Our flexible design allows discr…