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Plasmonic nanolasers have made rapid progress in recent years, with room temperature lasing being achieved in the ultra-violet to visible wavelength range using ZnO, GaN and CdS semiconductors. However, the binding energy of excitons for semiconductors such as GaAs that emit in the technologically important near infrared region is insufficient to be stable at room temperature. Quantum dots act as...
We demonstrated the direct modulation in InAs/GaAs quantum dot (QD) lasers on Si. The Fabry-Pérot QD laser was integrated on Si by direct bonding method, and a cavity was formed by the as-cleaved facets without HR/AR coatings. The bonded laser was operated at room temperature with a threshold current of 40 mA and a maximum output power of 30 mW (single facet). A 6 Gbps non-return-to-zero (NRZ) signal...
We discuss recent advances in InAs/GaAs quantum dot lasers for telecom and silicon photonics applications. These include high temperature-stability with high speed modulation, commercialization by QD Laser Inc., and low-threshold quantum dot lasers on Si-substrates by a direct wafer boding technique. Realization of single quantum dot lasers is also discussed.
Recent advances in quantum dot-based nanophotonics are discussed, including the current state of the art of quantum dot lasers and cavity-QED in quantum-dot-2D/3D-photonic-crystal-nanocavity coupled systems for single artificial atom lasers and related physics.
We overview recent advances in nanophotonics devices with emphasis on quantum dot lasers. The discussion includes high-performance quantum dot lasers and light-matter interaction in a single quantum dot with photonic crystal nanocavity. A single artificial atom lasers with two-dimensional photonic crystal nanocavity is demonstrated. Moreover, lasing oscillation in a quantum dot-three-dimensional photonic...
The modulation characteristics of 1.3-μm InAs/GaAs high-density quantum-dot lasers is presented. The eight-stacked high-density quantum-dot layers provided high net modal gain of 46 cm-1. Fabricated Fabry-Perot lasers showed the 25-Gbps direct modulation.
We discuss advances in quantum dots for nanophotonics and quantum information applications. After a historical review of research on quantum dots and their laser applications (i.e., quantum dot lasers), successful demonstration of temperature-stable quantum dot lasers and ultra-low threshold lasers with photonic crystal nanocavity are demonstrated. Moreover, recent progress in quantum dot information...
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