Quantum Cooling using Mode Controlled Blue Lasers (CoolBlue)

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CoolBlue is a highly innovative project with a goal to develop next generation GaN laser technology for implementation inquantum sensors based on atomic cooling. Conventional laser sources for these applications are complex and innefficientwhereas a direct blue laser diode source could offer many advantages such as increased power, lower complexity, andsmaller size, potentially transforming quantum sensors such as frequency standards from laboratory instruments intominiaturised, robust systems. The project will consist of two cycles of laser design, fabrication and test, in which we willoptimise key laser parameters including linewidth and power. The project will be led by CSTG Ltd in partnership with theUniversity of Glasgow and Aston University.University of Glasgow offers advanced characterisation, device modelling and advanced lithography at the JWNC. GU is apartner in the Birmingham QT hub which creates excellent opportunities collaboration and an ideal platform for additionalfunding applications subsequent to this project. Additionally, Professor Paul is currently serving a QT fellowship whichmeans that he is in an ideal position to understand both the technical requirements and the commercial drivers for this newtechnology. It will also allow direct access to the academics on the Birmingham QT hub and, where appropriate, the supplyof the devices generated on the project for use in the systems being considered.