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A 10 Gbit/s quantum dot laser that is insensitive to temperature fluctuation for use in optical data communications and optical networks has been developed using this technology. The laser is capable of high-speed operation at 1.3 μm wavelengths, at temperatures from 20 °C to 70 °C. It works in optical data transmission systems, optical LANs ...
Download as PDF; Printable version; In other projects Wikimedia Commons; ... Quantum dot laser; Quantum dot solar cell; S. Silicon quantum dot This page was ...
Download QR code; Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Quantum defect; Quantum dot; Quantum dot laser;
Quantum dot laser: wide range. Medicine (laser scalpel, optical coherence tomography), display technologies (projection, laser TV), spectroscopy and telecommunications. Quantum well laser: 0.4-20 μm, depending on active region material. Telecommunications: Hybrid silicon laser: Mid-infrared: Low cost silicon integrated optical communications
The sample is a Ga(AsSb) quantum well surrounded by GaAs spacers. For the top figure, a density of 1.3 x 10 12 cm −2 was used which is well above lasing threshold. For the bottom figure, the carrier density is negligible.
Individual quantum dots can be created from two-dimensional electron or hole gases present in remotely doped quantum wells or semiconductor heterostructures called lateral quantum dots. The sample surface is coated with a thin layer of resist and a lateral pattern is then defined in the resist by electron beam lithography .
Therefore, the quantum dot is an emitter of single photons. A key challenge in making a good single-photon source is to make sure that the emission from the quantum dot is collected efficiently. To do that, the quantum dot is placed in an optical cavity. The cavity can, for instance, consist of two DBRs in a micropillar (Fig. 1).
Hinzer showed that semiconductor quantum dots could be used to capture the whole solar spectrum, which could be used in combination with solar concentrators. [5] Working with the Université de Sherbrooke on a new strategy for high efficiency solar cells, which they achieved by reducing electrode-induced shadowing and size.
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