About Quantum Technology
The development of quantum technology has the potential to deliver orders of magnitude improvement in the performance of applications including sensing, communication, computing and timing. Based upon many-particle quantum superposition and entanglement in large engineered systems many of these technologies rely on high performance light sources to drive the technology. Covesion PPLN solutions are a key enabler for the wavelength conversion used in such light sources.
Our Quantum Clients & Partners
We work with OEM’s and system developers through to research laboratories and Universities in the development of quantum technology.
Wavelength Engineering for Quantum Technology
MgO:PPLN is a key enabler for the high performance light sources needed for quantum applications.
Quantum Sensing
Quantum sensors rely on quantum particles and interactions to make measurements of their environment and have the potential to be many orders of magnitude more sensitive than conventional sensors. The physical properties that can be measured include frequency (for timing applications), magnetic and gravitational fields, linear and rotational acceleration (within inertial sensors), electric fields (for RF detection), and light down to the single photon level.
Quantum Communication
Quantum enabled networking and communication is needed to support the development of quantum computing and new cryptography protocols. Quantum frequency conversion using PPLN plays a key role in generating the wavelengths needed for fiber and free-space network transmission of quantum information. PPLN devices are also able to provide high efficiency sources of photon pairs which are the basis for the entangled photon sources (EPS) used in quantum key distribution (QKD).
Quantum Computing
The basis of quantum computing is the ‘qubit’ which can simultaneously represent 1, 0, or any value in between. This property of superposition allows many operations to be performed simultaneously and in parallel, and hence millions of times faster than a classical computer. Quantum computing modalities include neutral atom and photonic based systems both of which require bespoke light sources for their operation.
Quantum Navigation & Timing
Quantum PNT (position, navigation and timing) makes use of quantum sensing and measurement technologies to overcome the limitations of GNSS in challenging environments such as in urban areas, underground, or in the presence of GPS denial or interference. Quantum PNT combines the use of multiple technologies such as atomic clocks, inertial sensors, gravitometers and magnetometers to deliver robust systems for location determination whilst removing reliance on GPS.
Relevant Resources
WHITE PAPER: Non-linear Optical Crystals Used for Quantum Te…
In this white paper, Dr RongRong Xu, Head of Scientific Sales at Covesion, discusses using non-linear optical crystals f…
WHITE PAPER: MgO:PPLN Applications
In this white paper, Dr RongRong Xu, Head of Scientific Sales, discusses the applications of MgO:PPLN.
CASE STUDY: SNORQL
The Rubidium Magneto Optical Trap (Rb-MOT) is a next generation, quantum technology that enables ultra-sensitive gravity…
GHz-pulsed source of entangled photons for reconfigurable qu…
Here, we report on a flexible source design that produces high-quality entanglement in continuous-wave and GHz-rate-puls…
Broadband telecom photon pairs from a fiber-integrated PPLN …
We demonstrate a spectrally correlated photon-pair source at telecom wavelengths (spanning across the S-, C-, and L-band…
Explore our solutions
Free space solutions
Covesion poling technology provides a versatile basis for the design and manufacture of unique PPLN crystals and waveguides, providing the option for tailor-made wavelength conversion solutions.
Fiber coupled solutions
Our PPLN fiber coupled solutions facilitate highly efficient and cost-effective frequency conversion, providing an easy to use method of accessing wavelengths which are unavailable from commercial laser sources.
Electronics & Accessories
Covesion design, develop and manufacture, thermal management and sensor control electronic systems, providing thermal stability within 0.001°C, product compactness and reliability, low operating noise, and simplicity in use.
Download our full catalog
Access Covesion comprehensive catalogue for detailed information on products, specifications, and solutions. Download now to explore our offerings.
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What our customers say about us
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Dr. Félix Bussières
ID Quantique, VP Research & Technology
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Dr Jefferson Florez Gutierrez
Imperial College London, Research Assistant
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Dr. Adetunmise Dada
University of Glasgow, Lecturer in Optics School of Physics and Astronomy
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Jeff Thompson
Princeton University, Associate Professor of Electrical and Computer Engineering
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As Covesion’s products are so well documented, we were able to easily select the waveguide we needed and discussions with Covesion’s team were helpful and clear. The product works well and is used regularly by the team here at IDQ.
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One of the main reasons we purchased PPLN products from Covesion is that they provided all the information we needed for understanding the crystal, and the sales team at Covesion made the purchase and the subsequent use of the product very simple. The company stands out because their poling technique is so good.
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The customer service from Covesion has always been excellent. We have a great rapport with Corin (ProfessorCorin Gawith, CTO, Covesion) and the team, and their knowledge is invaluable. I have had occasion to use Covesion crystals twice during my research at The University of Glasgow and the turnaround for the custom products was very quick, meaning the research could continue without delay.
Specifically with regards to our area of interest, the PPLN crystals are periodically poled, and the period of poling needs to be optimised to ensure the best performance of the source, enhancing the efficiency of the generation. Covesion gave us various options rather than just one specific period for the poling. For example, in one of the devices there were different groups of poling periods and that allowed us to optimise for best performance and find the configuration that worked the best.
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Compared to some other nonlinear mediums, Covesion’s PPLN product provides much higher nonlinear coefficient and good optical qualities that are suitable for high power laser applications.
Covesion has good reputation in the community, they provide good quality products as well as excellent technical support for the materials and technologies used in our laser system. They offer a range of standard in-stock products, together with providing bespoke products and customised services.
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