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Monolithically integrated InGaAs/GaAs/AlGaAs quantum well laser grown by MOCVD on exact Ge/Si(001) substrate

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TLDR
In this article, the InGaAs/GAAs/AlGaAs quantum well laser was realized by metallorganic chemical vapor deposition on a virtual Ge-on-Si(001) substrate.
Abstract
We report on realization of the InGaAs/GaAs/AlGaAs quantum well laser grown by metallorganic chemical vapor deposition on a virtual Ge-on-Si(001) substrate. The Ge buffer layer has been grown on a nominal Si(001) substrate by solid-source molecular beam epitaxy. Such Ge buffer possessed rather good crystalline quality and smooth surface and so provided the subsequent growth of the high-quality A3B5 laser structure. The laser operation has been demonstrated under electrical pumping at 77 K in the continuous wave mode and at room temperature in the pulsed mode. The emission wavelengths of 941 nm and 992 nm have been obtained at 77 K and 300 K, respectively. The corresponding threshold current densities were estimated as 463 A/cm2 at 77 K and 5.5 kA/cm2 at 300 K.

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Citations
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Journal ArticleDOI

Ultra-low threshold InAs/GaAs quantum dot microdisk lasers on planar on-axis Si (001) substrates

TL;DR: In this article, the InAs/GaAs QD microdisk laser was grown on planar on-axis Si (001) substrate with an ultra-low lasing threshold at room temperature under continuous-wave optical pumping.
Journal ArticleDOI

Heat-sink free CW operation of injection microdisk lasers grown on Si substrate with emission wavelength beyond 1.3 μm.

TL;DR: High-performance injection microdisk (MD) lasers grown on Si substrate are demonstrated for the first time and the high stability of the lasing wavelength and the low specific thermal resistance are demonstrated.
Journal ArticleDOI

Review of Highly Mismatched III-V Heteroepitaxy Growth on (001) Silicon

TL;DR: In this article , the defects formation and defects suppression methods to grow III-V materials on Si substrate (such as GaAs and InP), so as to give readers a full understanding on the group III-v hetero-epitaxial growth on Si substrates.
Journal ArticleDOI

Silicon-based PbS-CQDs infrared photodetector with high sensitivity and fast response

TL;DR: This work demonstrated a silicon-compatible photodetector that could be integrated on-chip, and also sensitive to infrared light which is owing to a PbS-CQDs absorption layer with tunable bandgap and paves the way for the realization of cost-efficient high-performance silicon compatible infrared optoelectronic devices.
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Theoretical Study on the Effects of Dislocations in Monolithic III-V Lasers on Silicon

TL;DR: In this paper, the authors present an approach to modeling III-V lasers on silicon based on a travelling-wave rate equation model with sub-micrometer resolution by allowing spatially resolved inclusion of individual dislocations along the laser cavity, which offers new insights into the physical mechanisms behind the characteristics of 980nm In(Ga)As/GaAs quantum well (QW) and 1.3μm quantum dot (QD) lasers grown on silicon.
References
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Journal ArticleDOI

High-quality Ge epilayers on Si with low threading-dislocation densities

TL;DR: In this paper, a two-step ultrahigh vacuum/chemical-vapor-deposition process followed by cyclic thermal annealing was proposed for making high-quality epilayers on Si.
Journal ArticleDOI

Electrically pumped continuous-wave III–V quantum dot lasers on silicon

TL;DR: In this paper, the authors demonstrate continuous-wave InAs/GaAs quantum dot lasers directly grown on silicon substrates with a low threshold current density of 62.5 cm−2, a room-temperature output power exceeding 105mW and operation up to 120°C.
Journal ArticleDOI

High performance continuous wave 1.3 μm quantum dot lasers on silicon

TL;DR: In this article, a Ridge waveguide laser with P-modulation doping of active region improves T0 to the range of 100-200 K while maintaining low thresholds and high output powers.
Journal ArticleDOI

GaP-nucleation on exact Si (0 0 1) substrates for III/V device integration

TL;DR: In this paper, a defect-free GaP layer on exactly oriented Si (0.0.1) surfaces has been shown to achieve a charge neutral interface and two-dimensional growth.
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