Results 21 to 30 of about 662 (179)

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

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

Effects of different current confinement layers in GaN-based VCSELs

open access: yesAIP Advances, 2023
For GaN-based vertical-cavity surface-emitting lasers (VCSELs), a suitable current confinement layer is essential for high-performance devices. The effect of different current confinement layers, including SiO2, AlN, and diamond, on the performance of ...
Yan-Hui Chen   +9 more
doaj   +1 more source

On‐Chip Photonic Neural Network Architectures

open access: yesAdvanced Optical Materials, EarlyView.
This review presents a comprehensive overview of on‐chip photonic neural network architectures, covering key photonic building blocks, representative network types, and emerging applications. Recent advances, implementation challenges, and future directions are examined, highlighting the potential of integrated photonics to enable ultrafast, energy ...
Seokjin Hong   +7 more
wiley   +1 more source

Time-Delay Signature Suppression of Polarization-Resolved Chaos Outputs from Two Mutually Coupled VCSELs

open access: yesIEEE Photonics Journal, 2013
Time-delay (TD) signature performances of polarization-resolved chaos outputs from two mutually coupled vertical-cavity surface-emitting lasers (MC VCSELs) are investigated through detailed simulations by means of self-correlation function (SF) and ...
Zhu-Qiang Zhong   +3 more
doaj   +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

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