, CST Global presenting paper on next-gen GaN laser technology at Photonics West

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19 January 2018

CST Global presenting paper on next-gen GaN laser technology at Photonics West

© Semiconductor Today Magazine / Juno PublishiPicture: Disco’s DAL7440 KABRA laser saw.

III-V optoelectronic foundry Compound Semiconductor Technologies Global Ltd (CST Global) of Hamilton International Technology Park, Blantyre, near Glasgow, Scotland, UK (a subsidiary of Sweden’s Sivers IMA Holdings AB) says that, at SPIE Photonics West 2018 in San Francisco (27 January - 1 February), research engineer Dr Thomas Slight will present a paper ‘Distributed feedback InGaN/GaN laser diodes’ giving an interim summary of the government-funded project ‘Quantum Cooling using Mode Controlled Blue Lasers’ (CoolBlue). Led by Slight during 2017, the project developed next-generation gallium nitride (GaN) laser diodes for quantum sensing systems, such as atomic clocks.

“At Photonics West, I cover the findings of the CoolBlue research project into next-generation GaN laser technology, for implementation in quantum sensors based on ultracold atoms,” says Slight. “The single-wavelength blue laser diode source, developed in the project, offered increased power, lower complexity and smaller size over conventional laser sources,” he adds. “This showed it was possible to transform quantum sensors from ‘laboratory instruments’ into miniaturized, robust systems for a far wider range of commercial applications.”

CoolBlue involved two cycles of laser design, fabrication and testing at CST Global. The knowledge and expertise generated allows the firm to develop new products for the emerging GaN laser and quantum technology markets.

Earlier in January CST Global announced it will receive government funding of £83,774 for ‘CoolBlue2’ (a continuation of the GaN laser technology development program), which Slight will also lead. CoolBlue2 allows two further iterations of GaN laser diode source design and manufacture, resulting in a laser suitable for evaluation in a real-world, low-cost integrated systems. CST Global will work on the project with commercial partner Helia Photonics Ltd, research partner National Physical Laboratory Ltd and academic partners the University of Glasgow and Aston University.

See related items:

CST Global receives £83,774 funding to continue GaN laser technology development for quantum sensing applications

CST Global leads CoolBlue research project to develop next-generation GaN laser technology

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