Programmable quantum photonic processor based on integrated Silicon Nitride waveguides

Taballione, Caterina; Meer, Reinier van der; Snijders, Henk; Hooijschuur, Peter; Epping, Jörn P.; Goede, Michiel de; Kassenberg, Ben; Venderbosch, Pim; Toebes, Chris; Vlekkert, Hans van den; Pinkse, Pepijn W. H.; Renema, Jelmer J.

doi:10.1117/12.2601585

Cited by 3 publications

(3 citation statements)

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“…In fact, if O(N 2 ) degrees of control are available, one can expect generating arbitrary N × N transformations between the input and output modes. Over the past two decades there is an ever-growing interest in realizing reconfigurable multimode transformations, for a wide range of applications, such as quantum photonic circuits [22,[31][32][33][34] optical communications [18,35], and nanophotonic processors [20,36]. These realizations require strong mixing of the input modes, as the output modes are arbitrary superpositions of the input modes.…”

Section: Discussionmentioning

confidence: 99%

Wavefront shaping in multimode fibers by transmission matrix engineering

et al. 2020

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One of the greatest challenges in utilizing multimode optical fibers is mode-mixing and inter-modal interference, which scramble the information delivered by the fiber. A common approach for canceling these effects is to tailor the optical field at the input of the fiber to obtain a desired field at its output. In this work, we present a new approach which relies on modulating the transmission matrix of the fiber rather than the incident light. We apply computer-controlled mechanical perturbations to the fiber to obtain a desired intensity pattern at its output. Using an all-fiber apparatus, we demonstrate focusing light at the distal end of the fiber and conversion between fiber modes. Since in this approach the number of degrees of control can be larger than the number of fiber modes, it allows simultaneous control over multiple inputs and multiple wavelengths.

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Section: Discussionmentioning

confidence: 99%

Wavefront shaping in multimode fibers by transmission matrix engineering

et al. 2020

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“…State-of-the-art chip-scale devices exhibit loss and er- * josh.silverstone@bristol.ac.uk ror performance approaching that of bulk and fibre systems. Quantum optical functionality has been demonstrated in all major technology platforms: lithium niobate 16 , silica [17][18][19] (both lithographic and laser-written), silicon nitride 20 , gallium arsenide 21 , indium phosphide 22 , and silicon 6,23 .…”

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confidence: 99%

Programmable four-photon graph states on a silicon chip

et al. 2019

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Future quantum computers require a scalable architecture on a scalable technology—one that supports millions of high-performance components. Measurement-based protocols, using graph states, represent the state of the art in architectures for optical quantum computing. Silicon photonics technology offers enormous scale and proven quantum optical functionality. Here we produce and encode photonic graph states on a mass-manufactured chip, using four on-chip-generated photons. We programmably generate all types of four-photon graph state, implementing a basic measurement-based protocol, and measure high-visibility heralded interference of the chip’s four photons. We develop a model of the device and bound the dominant sources of error using Bayesian inference. The combination of measurement-based quantum computation, silicon photonics technology, and on-chip multi-pair sources will be a useful one for future scalable quantum information processing with photons.

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“…An on-demand, reprogrammable optical circuit presents exciting new possibilities for many photonic applications ranging from quantum communication to information processing [1][2][3]. Conventional approaches using cascaded interferometers on integrated photonic architectures suffer from challenges associated with fabrication errors and loss, with state-of-the-art circuits reaching 12 optical modes [4]. Circuits operated on the transverse spatial domain for quantum light have also been recently demonstrated using bulk optics and multi-plane light conversion [5,6].…”

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confidence: 99%