CST to Serve as Commercial Lead on CoolBlue Project; Sivers Acquires CST in Merger

UK firm, Compound Semiconductor Technologies Global Ltd (CST Global), a III-V optoelectronic semiconductor foundry, reports that the company will serve as the commercial lead of the government-funded, CoolBlue research project. Academic partners for the project are Glasgow and Aston Universities.

Sivers Acquires CST

Just days after reporting about the CoolBlue project, Sivers IMA, of Sweden, announced its acquisition of all of the shares of CST global in a merger. Sivers IMA is a fabless supplier and developer of products for advanced, WiGig / 5G wireless and radio frequency, network applications. The merger will add direct fiber optic network products to Sivers’ portfolio including optical lasers used in the cloud, data center, and the “fibre-to-the-subscriber” markets.

CoolBlue Project Goals

The CoolBlue project intends to induce a state of quantum cooling through the use of mode-controlled blue lasers. The Engineering and Physical Sciences Research Council (EPSRC), the UK government’s premiere research funding agency for engineering and the physical sciences, will invest £800 million per year in both research and postgraduate training related to the project.

The project’s goal is to develop a process for inducing atomic level cooling of quantum sensors. The project participants plan to develop next generation gallium nitride (GaN) laser technology for the cooling process. The laser technology and atomic level cooling technique could help make quantum sensors smaller and more robust.

Thomas Slight, development engineer at CST Global and project lead said, “CoolBlue seeks to develop next generation GaN laser technology for use in atomic-cooled, quantum sensors. Traditional laser sources have proven too complex and inefficient to produce commercially, in this application. However, direct blue laser diode sources offer increased power and simplicity, with the opportunity to miniaturize quantum sensor formats and produce them in a robust format. The CoolBlue project funds two cycles of laser design, fabrication, and test, which we will do at CST Global, optimizing key laser parameters, including power.”