Chromacity ultrafast lasers helping to generate entangled photons


Ultrafast infra-red lasers for quantum applications

Wednesday 22nd May 2024, Edinburgh, UK. Chromacity Ltd., a world leader in the design and development of ultrafast femtosecond and picosecond infra-red lasers provides enabling technology for quantum applications.

Chromacity’s ultrafast lasers are an ideal platform to generate entangled photons, essential for many emerging technologies such as quantum-secured intercontinental communications based on quantum key distribution (QKD). Researchers at the University of Glasgow have used a Chromacity ultrafast 1040nm femtosecond laser to generate pairs of entangled photons by passing it through a non-linear crystal.  For more information about the research, click here.

A similar process is used by Chromacity in its own near and mid infra-red optical parametric oscillator (OPO) based lasers.  The Chromacity Auskerry and Haskeir lasers are seeded by the same spontaneous parametric down-conversion (SPDC) process, using an ultrafast laser source to pump a non-linear crystal.

The Auskerry laser uses a periodically poled lithium niobate (PPLN) non-linear crystal to generate near infra-red light in the range of 1.4um to 4.5um.  The Haskeir laser uses a different Orientation Patterned Gallium Phosphide (OP-GaP) non-linear crystal to generate mid infra-red light in the 4.5um to 12um range.

For more information about our infra-red tuneable lasers suitable for quantum applications, click on the link below.


About Chromacity

Chromacity is a world leader in the design, development, and manufacturing of advanced ultrafast pulsed fibre lasers. Based in Edinburgh, UK, the company specialises in fixed wavelength femtosecond and picosecond optical parametric oscillator (OPO) based tuneable laser systems. Based on a novel patented laser architecture that delivers ultra stable long-term performance, the fixed wavelength femtosecond fibre lasers work at 1040nm and 920nm, and the tuneable picosecond OPO lasers work across the near infra-red and mid infra-red wavelengths from 1.4um to 12um.

The lasers are used principally for scientific and industrial research including spectroscopy (materials analysis), microscopy (biological imaging), defect detection, pollution monitoring and broad variety of quantum applications.

All Chromacity’s lasers are compact, air-cooled devices, and offer unrivalled long term pulse stability without the need for on-going maintenance. The company sells its products either directly, or via a global network of distributors and agents.[/vc_column_text][/vc_column][/vc_row]