Topic
Optical microcavity
About: Optical microcavity is a research topic. Over the lifetime, 2599 publications have been published within this topic receiving 72125 citations. The topic is also known as: optical microcavities.
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TL;DR: In this paper, the InAs/InGaAs QD structures on GaAs substrates as well as fabrication and performance of long-wavelength QD edge-emitting lasers and VCSELs are discussed.
Abstract: Molecular beam epitaxy growth of InAs/InGaAs QD structures on GaAs substrates as well as fabrication and performance of long-wavelength QD edge-emitting lasers and VCSELs are discussed. 1.3 pm QD VCSELs were successfully fabricated from the structures with several QD planes inserted into the optical microcavity with AlO-GaAs and AlGaAs-GaAs Bragg reflectors.
32 citations
TL;DR: In this paper, the effect of self-adjustment of the cavity mode in vertical cavity surface-emitting lasers containing three-period InGaAs-GaAs vertically-coupled quantum dots has been observed.
Abstract: The effect of self-adjustment of the cavity mode in vertical cavity surface-emitting lasers containing three-period InGaAs-GaAs vertically-coupled quantum dots has been observed. The effect originates from a strong modulation of the refractive index near the gain peak, caused by excitons in quantum dots. The possibility of single quantum dot lasing is demonstrated.
32 citations
TL;DR: In this paper, a design of all-optical switches based on one-dimensional photonic crystals (1D PhC) doped with nonlinear optical materials is presented, which is composed of a PhC cavity sandwiched by two accessional PhC microcavities.
32 citations
TL;DR: In this paper, a strain-controlled columnar quantum dot optical amplifiers (SC-CQDs) were proposed for the 1.5-μm wavelength band, which exhibited a high aspect ratio and had strain controlled side barriers for polarization-insensitive operation.
Abstract: A polarization-insensitive quantum dot semiconductor optical amplifiers (QD-SOAs) have been studied for use in future optical communication systems. A part of our work shows that the optical polarization property in QDs depends on both their aspect ratio and strain. To control these two parameters, we propose the use of strain-controlled columnar QDs (SC-CQDs), which exhibit a high aspect ratio and have strain-controlled side barriers for polarization-insensitive operation in the 1.5-μ m wavelength band. QD-SOAs with these optimized SC-CQDs demonstrated polarization-insensitive characteristics. They showed a gain of 8.0 dB with polarization dependence of the gain as low as 0.4 dB, -3-dB saturation output power of 18.5 dBm at a wavelength of 1550 nm, and error-free amplification at a bit rate of 40 Gbit/s.
31 citations
TL;DR: In this paper, the optical nonlinearity present at very low optical power in a system consisting of a quantum dot strongly coupled to a cavity, and show that this system can be used for ultralow power and high-speed all-optical switching.
Abstract: We theoretically analyze the optical nonlinearity present at very low optical power in a system consisting of a quantum dot strongly coupled to a cavity, and show that this system can be used for ultralow power and high-speed all-optical switching. We also present numerical simulation results showing both the detailed temporal behavior of such switch and the time-integrated energy transmission through the cavity. We use two different approaches-a quantum optical one and a semiclassical one-to describe the system's behavior, and observe reasonable agreement between the outcomes of numerical simulations based on these two approaches.
31 citations