CST Global has begun developing a buried heterostructure (BH), laser diode production capability on its commercial, MOCVD reactor. There is currently a supply shortage of this type of single-frequency device and a world-wide bottleneck in the ability to manufacture them. BH lasers suit many silicon photonics applications, including passive optical network (PON) and quantum sensing markets.
The active layers of BH lasers are coated with an InP epitaxial overgrowth layer, applied by the MOCVD machine. This creates a special semiconductor structure, which simultaneously provides optical and electrical confinement, whilst also offering high thermal performance, optimal beam shapes and low noise, semiconductor, optical amplification.
CST Global is a wholly-owned subsidiary of Sivers IMA Holdings AB.
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