Telecommunications: III–V/silicon tunable laser

Categorie(s) : News, Research

Published : 4 February 2016

Solid indium phosphide (INP) tunable lasers for telecommunications networks are costly to manufacture and ill-suited to integration with other photonic and electronic components. Researchers from Leti and the III–V Lab have now produced a tunable laser on a silicon substrate coupled with a III–V material.
This hybrid monomode laser boasts a novel waveguide system coupled with two thermo-optically-controlled rings for a tuning range of 35 nm. The system, which enables the allocation of 80 wavelengths in the International Telecommunications Union (ITU) standard wavelength plan, is intended for metropolitan and long-distance telecommunications networks.
The researchers are now working on integrating the hybrid lasers with other optical functions with the goal of producing complete transmitters suitable for telecommunications and data centers.



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