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The Hawthorn Photonics Group

Hawthorn Photonics is a global photonics group accelerating progress in nonlinear optics, quantum technologies and frequency conversion. Through its portfolio companies, AdvR, Covesion and Radiantis, the group provides complementary materials, components, technologies and laser systems that enable both scientific discovery and commercial deployment.

By combining expertise in nonlinear crystals, integrated photonics and advanced laser systems, Hawthorn Photonics helps customers transition efficiently from fundamental research to robust, high-performance photonics solutions.

AdvR

Founded in Bozeman, Montana, AdvR designs and manufactures advanced nonlinear optical devices and integrated photonics solutions, with expertise in engineered materials including lithium niobate, magnesium-doped lithium niobate, potassium titanyl phosphate and periodically poled structures. AdvR offers a wide selection of fiber-coupled frequency conversion units, phase modulators and photon-pair sources, supporting cutting-edge applications in quantum information science, atomic and molecular sensing, space and defense, environmental monitoring and next-generation optical systems.

Covesion

Covesion is a trusted partner in nonlinear optical materials and frequency conversion solutions for scientific, quantum and industrial photonics. Engineered MgO:PPLN, PPLN and PPKTP crystals deliver highly efficient wavelength conversion from UV to mid-IR, enabled by proprietary high-precision poling technology.

From off-the-shelf components to fully bespoke solutions, products are optimized for efficiency, power handling and seamless integration. Supporting applications including SHG, SFG/DFG, optical parametric processes, electro-optic phase modulation and photon-pair generation, Covesion helps customers transition from laboratory innovation to dependable real-world performance.

Waveguide up-conversion.

Radiantis

Radiantis designs and manufactures high-performance laser systems for scientific and industrial applications. Its portfolio includes ultrashort pulse and continuous-wave (CW) tunable lasers, optical parametric oscillators (OPOs), and harmonic generation systems. Engineered for compact integration and long-term operational stability, Radiantis systems are recognised for their automation, reliability and consistent performance in demanding real-world environments.

Radiantis technologies support pioneering work in quantum optics, ultrafast spectroscopy and advanced microscopy, delivering flexible, high-quality light sources to research laboratories and commercial photonics platforms worldwide.