Researchers at the Center for Nanosciences and Nanotechnology, in collaboration with STMicroelectronics and Paris-Diderot University, have designed and manufactured silicon-integrated laser nanodiodes capable of highly efficient transfer of electrical information in the optical domain, a chip. This work has been published in Nature Photonics.

nanodiodes

By exploiting the exceptional optical properties of photonic crystals and advanced nanotechnologies, researchers from the Center for Nan sciences and Nanotechnologies (C2N, CNRS / University Paris-Sud), in collaboration with ST Microelectronics and the Paris-Diderot University , It has been demonstrated that laser diodes have the characteristics in terms of compactness.

Scanning Electron Microscopy (a) and Optical (b) Fabricated Structures Characteristic Curve of Laser Emission (c). The new technologies for the convergence of microelectronics and photonics represent a major challenge because they would be at the origin of a real revolution for the processing propagation of data in microprocessors. Of all the optoelectronic components to develop in this context it is essential to develop very effective diode lasers energy. Dimensions micron or sub-micron integrated with photonics and microelectronics on silicon, to convert electrically coded information towards the optical domain.

This collaboration has demonstrated that it was possible to produce such light sources by exploiting. The optical properties of the photonic crystals, nanophotonic semiconductor structures formed of holes of about 100 nm in diameter. This original approach for the injection power and the coupling of these nanostructures based on indium phosphide incorporating quantum wells with a photonic circuit in silicon enabled them to obtain hybrid lasers emitting at lengths wave of telecommunications.

These lasers originate from optical cavities confining the light in a volume of semiconductor material (5 μm × 0.5 μm × 0.45 μm). They have an electro-optical conversion efficiency of more than 10%: a record in the field. We always try to introduce new technology to you.

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Researchers at the Center for Nanosciences and Nanotechnology, in collaboration with STMicroelectronics and Paris-Diderot University, have designed and manufactured silicon-integrated laser nanodiodes capable of highly efficient transfer of electrical information in the optical domain, a chip. This work has been published in Nature Photonics. By exploiting the exceptional optical properties...