Integrated Orbital Angular Momentum Quantum Photonics

Lead Research Organisation: University of Bristol
Department Name: Physics

Abstract

Harnessing the quantum mechanical properties of light is an appealing approach to developing future quantum technologies for applications in communications, sensing, simulation and computation. Integrated quantum photonics waveguide circuits and orbital angular momentum are two promising but disparate fields of quantum photonic research that hold great potential for the development of future quantum photonic technologies. Integrated quantum photonic (IQP) waveguide circuits control and manipulate light propagating within mm-sized waveguide circuits, whereas the orbital angular moment (OAM) degree-of-freedom of the photon enables efficient communication of quantum information through the generation of high-dimensional entangled qu-dits propagating in free-space.

This research project aims to merge these two seemingly incompatible technologies to realised integrated quantum photonic waveguide circuits that can generate, manipulate and detect OAM states of light for chip-to-chip transfer of quantum information. This new integration technology will harness the advantages of both IQP and OAM to develop new applications in quantum communications, distributed quantum information processing, generation of high-dimensional entanglement and hyper-entanglement, quantum key distribution and the investigation of fundamental science.

Planned Impact

This technology will significantly impact the specific fields of OAM, integrated quantum photonics and quantum photonics in general, as it will provide new concepts and new tools for the development of advanced and novel applications. The ultimate long term and socio-economic impacts will be broad and far-reaching, with anticipated impacts in areas including information security, new sensing and diagnostic tools and information processing. One major area of impact will likely be in the development of quantum secure communications for mobile devices, where these small and compact IOAM devices (2-3 orders of magnitude smaller than conventional approaches) will provide free-space chip-to-chip quantum communications channels with enhanced security and reference-frame independent behaviour. Another important application could be in the generation of large high-dimensional entangled and hyper-entangled quantum states for use as a resource in distributed quantum computing. Other potential applications could be in quantum sensing by exploiting the rotating phase properties of OAM and high-dimensional entanglement, as well as for investigations into new quantum protocols and fundamental science.

Information security is of growing concern in todays society, and quantum secure communications technologies will provide a level of security beyond those of todays 'classical' information systems. The development of new quantum technologies will deliver not just information security but ultra-precise sensing, and computation power beyond the limits of classical computers enabling the simulation of complex systems for the development of new materials, clean energy devices and pharmaceutics.
 
Description In this work, an extremely compact optical vortex emitter was demonstrated with the ability to actively tune between different orbital angular momentum modes. The emitter was tuned using a single electrically contacted thermo-optical control, maintaining device simplicity and micron scale footprint.
Exploitation Route We reported on an ultra-compact silicon integrated device capable of rapidly tuning emitted light. This is the first demonstration of such switching on-chip, and the switching rate of the device is one to two orders of magnitude faster than previously demonstrated with bulk-optics approaches. These designs could be further optimised for applications and open up a wide range of possibilities for applications in sensing and manipulation, telecommunications and quantum optics.
Sectors Digital/Communication/Information Technologies (including Software)

URL http://www.bristol.ac.uk/news/2012/8870.html
 
Description Quantera
Amount € 200,000 (EUR)
Funding ID 731473 
Organisation European Commission H2020 
Sector Public
Country Belgium
Start 03/2018 
End 03/2021
 
Description BBOI - FET 
Organisation Polytechnic University of Milan
Country Italy 
Sector Academic/University 
PI Contribution We are contributing to the development of large scale photonic circuits will also enable demonstrations of quantum processors, solving an important class of problems that are more efficiently solved using quantum processors than even the fastest class of modern supercomputer.
Collaborator Contribution Our partenrs will be working on Lighpaths which will be inspected in strategic points of the circuit through novel non-perturbative probes capable to sense the light inside optical waveguides without wasting any single photon. Photon routing will be achieved by using power-saving actuators exploiting resistive switching materials used in electronic non-volatile memories, but never explored in the optical domain.
Impact Several journals and Papers on proceedings of international conferences
Start Year 2013
 
Description BBOI - FET 
Organisation Technion - Israel Institute of Technology
Country Israel 
Sector Academic/University 
PI Contribution We are contributing to the development of large scale photonic circuits will also enable demonstrations of quantum processors, solving an important class of problems that are more efficiently solved using quantum processors than even the fastest class of modern supercomputer.
Collaborator Contribution Our partenrs will be working on Lighpaths which will be inspected in strategic points of the circuit through novel non-perturbative probes capable to sense the light inside optical waveguides without wasting any single photon. Photon routing will be achieved by using power-saving actuators exploiting resistive switching materials used in electronic non-volatile memories, but never explored in the optical domain.
Impact Several journals and Papers on proceedings of international conferences
Start Year 2013
 
Description BBOI - FET 
Organisation University of Glasgow
Country United Kingdom 
Sector Academic/University 
PI Contribution We are contributing to the development of large scale photonic circuits will also enable demonstrations of quantum processors, solving an important class of problems that are more efficiently solved using quantum processors than even the fastest class of modern supercomputer.
Collaborator Contribution Our partenrs will be working on Lighpaths which will be inspected in strategic points of the circuit through novel non-perturbative probes capable to sense the light inside optical waveguides without wasting any single photon. Photon routing will be achieved by using power-saving actuators exploiting resistive switching materials used in electronic non-volatile memories, but never explored in the optical domain.
Impact Several journals and Papers on proceedings of international conferences
Start Year 2013
 
Description BBOI - FET 
Organisation University of Münster
Country Germany 
Sector Academic/University 
PI Contribution We are contributing to the development of large scale photonic circuits will also enable demonstrations of quantum processors, solving an important class of problems that are more efficiently solved using quantum processors than even the fastest class of modern supercomputer.
Collaborator Contribution Our partenrs will be working on Lighpaths which will be inspected in strategic points of the circuit through novel non-perturbative probes capable to sense the light inside optical waveguides without wasting any single photon. Photon routing will be achieved by using power-saving actuators exploiting resistive switching materials used in electronic non-volatile memories, but never explored in the optical domain.
Impact Several journals and Papers on proceedings of international conferences
Start Year 2013
 
Description QUANTIP 
Organisation Cornell University
Country United States 
Sector Academic/University 
PI Contribution Developed the next generation of integrated quantum circuits by quantum micro-chips, which will harness the unique properties of quantum mechanics to process and transmit information, and will enable progress towards large-scale, integrated quantum photonic circuits. These components will be used for the development of advanced quantum systems for the purposes of quantum communications, information processing and metrology.
Collaborator Contribution Developed a range of discrete integrated quantum photonic components will be which were integrated to form proof-of-principle demonstrators of fully-integrated prototypes, where all major components are integrated onto a single chip.
Impact Numerous publications and further development of quantum micro-chips
Start Year 2010
 
Description QUANTIP 
Organisation Eindhoven University of Technology
Country Netherlands 
Sector Academic/University 
PI Contribution Developed the next generation of integrated quantum circuits by quantum micro-chips, which will harness the unique properties of quantum mechanics to process and transmit information, and will enable progress towards large-scale, integrated quantum photonic circuits. These components will be used for the development of advanced quantum systems for the purposes of quantum communications, information processing and metrology.
Collaborator Contribution Developed a range of discrete integrated quantum photonic components will be which were integrated to form proof-of-principle demonstrators of fully-integrated prototypes, where all major components are integrated onto a single chip.
Impact Numerous publications and further development of quantum micro-chips
Start Year 2010
 
Description QUANTIP 
Organisation Macquarie University
Country Australia 
Sector Academic/University 
PI Contribution Developed the next generation of integrated quantum circuits by quantum micro-chips, which will harness the unique properties of quantum mechanics to process and transmit information, and will enable progress towards large-scale, integrated quantum photonic circuits. These components will be used for the development of advanced quantum systems for the purposes of quantum communications, information processing and metrology.
Collaborator Contribution Developed a range of discrete integrated quantum photonic components will be which were integrated to form proof-of-principle demonstrators of fully-integrated prototypes, where all major components are integrated onto a single chip.
Impact Numerous publications and further development of quantum micro-chips
Start Year 2010
 
Description QUANTIP 
Organisation National Research Council
Country Italy 
Sector Public 
PI Contribution Developed the next generation of integrated quantum circuits by quantum micro-chips, which will harness the unique properties of quantum mechanics to process and transmit information, and will enable progress towards large-scale, integrated quantum photonic circuits. These components will be used for the development of advanced quantum systems for the purposes of quantum communications, information processing and metrology.
Collaborator Contribution Developed a range of discrete integrated quantum photonic components will be which were integrated to form proof-of-principle demonstrators of fully-integrated prototypes, where all major components are integrated onto a single chip.
Impact Numerous publications and further development of quantum micro-chips
Start Year 2010
 
Description QUANTIP 
Organisation University of Nice Sophia-Antipolis
Country France 
Sector Academic/University 
PI Contribution Developed the next generation of integrated quantum circuits by quantum micro-chips, which will harness the unique properties of quantum mechanics to process and transmit information, and will enable progress towards large-scale, integrated quantum photonic circuits. These components will be used for the development of advanced quantum systems for the purposes of quantum communications, information processing and metrology.
Collaborator Contribution Developed a range of discrete integrated quantum photonic components will be which were integrated to form proof-of-principle demonstrators of fully-integrated prototypes, where all major components are integrated onto a single chip.
Impact Numerous publications and further development of quantum micro-chips
Start Year 2010
 
Description QUANTIP 
Organisation University of Technology of Compiègne
Department French National Centre for Scientific Research Lab (CNRS Lab)
Country France 
Sector Academic/University 
PI Contribution Developed the next generation of integrated quantum circuits by quantum micro-chips, which will harness the unique properties of quantum mechanics to process and transmit information, and will enable progress towards large-scale, integrated quantum photonic circuits. These components will be used for the development of advanced quantum systems for the purposes of quantum communications, information processing and metrology.
Collaborator Contribution Developed a range of discrete integrated quantum photonic components will be which were integrated to form proof-of-principle demonstrators of fully-integrated prototypes, where all major components are integrated onto a single chip.
Impact Numerous publications and further development of quantum micro-chips
Start Year 2010
 
Description QUANTIP 
Organisation University of Wurzburg
Country Germany 
Sector Academic/University 
PI Contribution Developed the next generation of integrated quantum circuits by quantum micro-chips, which will harness the unique properties of quantum mechanics to process and transmit information, and will enable progress towards large-scale, integrated quantum photonic circuits. These components will be used for the development of advanced quantum systems for the purposes of quantum communications, information processing and metrology.
Collaborator Contribution Developed a range of discrete integrated quantum photonic components will be which were integrated to form proof-of-principle demonstrators of fully-integrated prototypes, where all major components are integrated onto a single chip.
Impact Numerous publications and further development of quantum micro-chips
Start Year 2010
 
Title QUANTUM KEY DISTRIBUTION 
Description An apparatus including: an input optical interface configured to receive a series of optical input signals each including photons; an encoder configured to encode a quantum key for distribution by encoding each of the series of received optical input signals with a measurable state; an attenuator configured to attenuate each of the encoded optical input signals to create a series of quantum optical signals; and an output optical interface configured to send the series of quantum optical signals to the remote apparatus via a quantum communication channel. 
IP Reference EP2670642 
Protection Patent application published
Year Protection Granted 2013
Licensed Commercial In Confidence
Impact Developing relationship with industrial partners.
 
Title Quantum Key Distribution 
Description An apparatus including: an input optical interface configured to receive a series of optical input signals each including photons; an encoder configured to encode a quantum key for distribution by encoding each of the series of received optical input signals with a measurable state; an attenuator configured to attenuate each of the encoded optical input signals to create a series of quantum optical signals; and an output optical interface configured to send the series of quantum optical signals to the remote apparatus via a quantum communication channel. Also published as CN103404074A, CN103404074B, EP2670642A2, US9219605, WO2012104808A2, WO2012104808A3 
IP Reference US2012195430 
Protection Patent application published
Year Protection Granted 2012
Licensed Commercial In Confidence
Impact Developing relationship with industrial partners.
 
Title Quantum key distribution 
Description An apparatus comprising an input optical interface configured to received a series of optical input signals each comprising photons, an encoder configured to encode a quantum key for distribution by encoding each of the series of received optical input signals with a measurable state, an attenuator configured to attenuate each of the encoded optical input signals to create a series of quantum optical signals, and an output optical interface configured to send the series of quantum optical signals to the remote apparatus via a quantum communication channel. 
IP Reference CN103404074 
Protection Patent application published
Year Protection Granted 2013
Licensed Commercial In Confidence
Impact Developing relationship with industrial partners.