Results 21 to 30 of about 659 (179)

Proton implantation in just above active region for improvement of power conversion efficiency of VCSELs

open access: yesElectronics Letters, 2021
Improving the power conversion efficiency of vertical cavity surface‐emitting lasers (VCSELs) by three‐dimensionally control of the carrier concentration, which is the main mechanism of the electrical resistance and optical absorption has been ...
Tomoyuki Miyamoto, Hayato Sakamoto
doaj   +1 more source

Recent Advances in 850 nm VCSELs for High-Speed Interconnects

open access: yesPhotonics, 2022
Vertical-cavity surface-emitting lasers (VCSELs) have made remarkable progress, are being used across a wide range of consumer electronic applications, and have particularly received much attention from the telecom and datacom industries.
Hao-Tien Cheng   +3 more
doaj   +1 more source

Distributed Bragg Reflectors for GaN-Based Vertical-Cavity Surface-Emitting Lasers

open access: yesApplied Sciences, 2019
A distributed Bragg reflector (DBR) is a key building block in the formation of semiconductor microcavities and vertical cavity surface emitting lasers (VCSELs). The success in epitaxial GaAs DBR mirrors paved the way for the ubiquitous deployment of III-
Cheng Zhang, Rami ElAfandy, Jung Han
doaj   +1 more source

Investigation of displacement damage to vertical-cavity surface-emitting red lasers due to 1 MeV electron radiation

open access: yesAIP Advances, 2020
The effects of displacement damage due to 1 MeV electron radiation on 680 nm and 850 nm vertical-cavity surface-emitting lasers (VCSELs) were experimentally investigated.
J. W. Chen   +10 more
doaj   +1 more source

Relative intensity noise of temperature-stable, energy-efficient 980 nm VCSELs

open access: yesAIP Advances, 2017
The relative intensity noise (RIN) of temperature-stable, energy-efficient oxide confined vertical-cavity surface-emitting lasers (VCSELs) have been investigated. Low energy consumption data transmission is achieved by using small oxide-aperture diameter
Hui Li   +3 more
doaj   +1 more source

Reduced Dimensionality Multiphysics Model for Efficient VCSEL Optimization

open access: yesApplied Sciences, 2021
The ICT scene is dominated by short-range intra-datacenter interconnects and networking, requiring high speed and stable operations at high temperatures.
Alberto Gullino   +4 more
doaj   +1 more source

High-Efficiency Quantum Dot Lasers as Comb Sources for DWDM Applications

open access: yesApplied Sciences, 2022
The trend of data center transceivers is to increase bandwidth while simultaneously decreasing their size, power consumption, and cost. While data center links have previously relied on vertical-cavity surface-emitting lasers (VCSELs) or in-plane lasers ...
Mario Dumont   +3 more
doaj   +1 more source

InAlGaP vertical cavity surface emitting lasers (VCSELs): processing and performance [PDF]

open access: yesConference Proceedings. 1997 International Conference on Indium Phosphide and Related Materials, 2002
The performance of AlGaInP based visible VCSELs has been advanced with the application of new heterostructure designs and the technique of selective oxidation. Improved performance at elevated temperatures as well as high wallplug efficiency, low threshold devices have been demonstrated for devices operating in the 670-680 nm region.
Crawford, M. H.   +3 more
openaire   +1 more source

Polarization dynamics in spin‐VCSELs with integrated surface grating for high birefringence splitting

open access: yesElectronics Letters, 2023
Polarization dynamics in spin‐polarized vertical‐cavity surface‐emitting lasers (spin‐VCSELs) with high birefringence have recently been demonstrated to offer very high potential for optical data‐transmission systems that outperform their counterparts ...
Markus Lindemann   +6 more
doaj   +1 more source

Spin Polarization Modulation Responses of Polarization Bistable VCSELs

open access: yesIEEE Photonics Journal
This study investigates the spin polarization modulation responses of vertical-cavity surface-emitting lasers (VCSELs) through numerical simulations and experimental measurements.
Nobuhide Yokota, Hiroshi Yasaka
doaj   +1 more source

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