POET Technologies Inc (PTK)

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What is VCSEL Laser (Vertical Cavity Surface Emitting Laser)?

ODIS Inc, the U.S. Affiliate of OPEL Solar, Proves a New Laser Device Using POET Monolithic Optoelectronic Fabrication Technology

http://opelinc.com/news/wp-content/uploads/2011/04/NR-20APR2011-ODIS-SmallLaser.pdf

OPEL Defense Integrated Systems (“ODIS”) has demonstrated laser operation for the first time in a new integrated device as part of its Planar Optoelectronic Technology (“POET”) process. Based on a proprietary Group III-V materials structure, the pulsed vertical cavity surface-emitting laser (VCSEL) operates at 980nm with a 12µm diameter vertical cavity surface and an output power of 1.7mW. In tandem with ODIS’ previously-announced integrated detector - a heterostructure field effect transistor (HFET) device - the laser enables inter-circuit optical connections between electronic devices for on-chip applications.