Fiber Coupled Frequency Conversion
Covesion’s fiber coupled waveguides and bulk crystal modules provide compact, high-performance wavelength conversion across a broad spectral range for both pulsed and CW operation. Available in MgO:PPLN, PPLN, and PPKTP, each device is optimized for specific wavelength and power requirements, and packaged in a robust fiber coupled format for straightforward integration into OEM and laboratory systems.
Photon Pair Generation
Covesion offers down-conversion solutions for photon pair generation, near-degenerate entanglement, and squeezed light. Waveguide-based devices enable high generation rates in compact, robust fiber-coupled packages. Available with standard or custom interactions, these solutions support researchers and OEMs developing advanced quantum technologies.
Quantum Frequency Conversion
Covesion’s quantum frequency converters enable efficient single-photon conversion between disparate wavelengths, bridging visible and telecom bands. Compact, low-loss, and low-noise designs support seamless integration into quantum networking, computing, and sensing systems. Available with standard or custom SFG and DFG interactions, these solutions are suited to a wide range of quantum architectures.
Searching for the perfect solution for your application?
Contact Covesion to explore waveguide and bulk offerings tailored to your requirements.
Relevant resources
Gravity sensing: cold atom trap onboard a 6U CubeSat
Through the CASPA project the consortium have built and vibration tested a 6U (approximate dimensions: 100μ×?200μ×μ…
Unlocking the frequency domain for high-dimensional quantum …
Here we report a record certification of discretized frequency entanglement, combined with a novel approach for certific…
WHITE PAPER: The Use of Periodically Poled Lithium Niobate (…
In this white paper, Dr Stuart Coomber, Global Head of OEM Sales, discusses the use of periodically poled lithium niobat…
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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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Dr. Florian Karlewski
HighFinesse GmbH, Head of R&D
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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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The cooperation with our partners Covesion and Fraunhofer IPM during the project and beyond was excellent. It enabled us to achieve results beyond the planned objectives.
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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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