Results 31 to 40 of about 1,346 (183)

High-Speed and High-Power 940 nm Flip-Chip VCSEL Array for LiDAR Application

open access: yesCrystals, 2021
In this paper, we demonstrate the design and fabrication of a high-power, high-speed flip-chip vertical cavity surface emitting laser (VCSEL) for light detection and ranging (LiDAR) systems.
Kuo-Bin Hong   +7 more
doaj   +1 more source

Electro-Optical Co-Design of Power-Efficient 100-Gbps/λ VCSEL Transmitter

open access: yesIEEE Photonics Journal, 2019
In this paper, we propose a comprehensive electro-optical co-design framework for power-efficient high-speed VCSEL transmitter targeting at 50 Gbaud. The framework integrates a rate-equation based VCSEL chip model and driver circuit models.
Chenyu Liang, Wenjia Zhang, Zuyuan He
doaj   +1 more source

Low Thermal Crosstalk 808-nm VCSEL Arrays With Nonlinear Mesa Configuration

open access: yesIEEE Photonics Journal, 2018
In this paper, we demonstrated vertical-cavity surface-emitting laser (VCSEL) arrays with improved thermal stability by arranging the mesa distribution within the array in a nonlinear configuration.
Chuyu Zhong   +4 more
doaj   +1 more source

Stable Propagation of Inhibited Spiking Dynamics in Vertical-Cavity Surface-Emitting Lasers for Neuromorphic Photonic Networks

open access: yesIEEE Access, 2018
We investigate experimentally and theoretically the communication of inhibited spiking dynamics between two interlinked photonic neurons based upon the vertical-cavity surface-emitting lasers (VCSELs).
Tao Deng   +7 more
doaj   +1 more source

Radiation effect and simulation of 850 nm vertical-cavity surface-emitting laser

open access: yesHe jishu, 2022
BackgroundVertical cavity surface emitting lasers (VCSEL) have very high application value in space radiation environment.PurposeThis study aims to explore the degradation rule and mechanism of 850 nm VCSEL in harsh radiation environment.MethodsFirst of ...
CHEN Jiawei   +4 more
doaj   +1 more source

Quantum-Well-Embedded InGaN Quantum Dot Vertical-Cavity Surface-Emitting Laser and Its Photoelectric Performance

open access: yesPhotonics
An electrically injected vertical-cavity surface-emitting laser (VCSEL) with quantum-well-embedded InGaN quantum dots (QDs) as the active region was designed.
Zinan Hua   +5 more
doaj   +1 more source

Novel concept for VCSEL enhanced silicon photonic coherent transceiver

open access: yesAIP Advances, 2019
We present a novel concept for an integrated silicon photonic coherent transceiver using vertical-emitting laser sources at 1550 nm. In a state of the art external modulation configuration, we deploy a VCSEL on the transmit and a HCSEL on the receive ...
Pascal M. Seiler   +6 more
doaj   +1 more source

A buried tunnel junction 940 nm VCSEL for achieving thermal diffusion characteristics

open access: yesAIP Advances
To investigate the performance degradation of a vertical-cavity surface-emitting laser (VCSEL) caused by self-heating effects, a 940 nm VCSEL with a buried tunnel junction (BTJ) and an aperture size of 10 μm was designed. The BTJ-type VCSEL achieves a 39.
Linjin Song   +5 more
doaj   +1 more source

Image Transmission Based on Spiking Dynamics of Electrically Controlled VCSEL-SA Neuron

open access: yesPhotonics, 2021
Based on the spiking dynamics of the electrically controlled vertical-cavity surface-emitting laser with an embedded saturable absorber (VCSEL-SA), we propose an image transmission system using two unidirectionally coupled VCSEL-SAs and numerically ...
Min Ni   +8 more
doaj   +1 more source

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

open access: yesAdvanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu   +8 more
wiley   +1 more source

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