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. The fixed wavelength fibre lasers work at 1040nm and 920nm, and the tuneable OPO lasers work across the near infra-red and mid infra-red wavelengths from 1.4um to 12um. The lasers are used principally for materials analysis, biological imaging and a broad variety of quantum applications including characterising the performance of superconducting nanowire single-photon detectors, hyperspectral quantum imaging with mid-IR undetected photons, and infra-red photon entanglement for secure satellite-to-ground and satellite-to-satellite communications. All Chromacity’s lasers are compact, air-cooled devices which do not require any ongoing maintenance and offer unrivalled long-term pulse stability. The company sells its products either directly, or via a global network of distributors and agents.