Results 1 to 10 of about 12,505 (251)

Influence of mode confinement factor on the modulation properties of the Vertical Cavity Surface Emitting VCSEL laser [PDF]

open access: yesمجلة التربية والعلم, 2021
Vertical cavity surface emitting laser VCSEL is currently the main solution for many technological aspects, ultrafast optical interconnecting, Gigabit Ethernet, etc.
Afrah Kareem, Younis Qurot
doaj   +1 more source

Low Divergence Coherently Coupled Vertical Cavity Surface Emitting Laser Ring Arrays

open access: yesIEEE Photonics Journal, 2022
We report the theory and experimental verification of a method to reduce beam divergence from coherently-coupled ring arrays of photonic crystal vertical cavity surface emitting lasers (VCSELs).
Nusrat Jahan   +4 more
doaj   +1 more source

Reliability of vertical-cavity surface-emitting laser arrays with redundancy

open access: yesAutomatika, 2021
This paper describes theoretical reliability analysis of a system containing n optical ports in which each optical port contains m redundant vertical-cavity surface-emitting lasers.
Dubravko Babić
doaj   +1 more source

Single-Chip Switchable Dual-Wavelength Vertical External-Cavity Surface-Emitting Laser

open access: yesCrystals, 2023
Dual-wavelength output devices have a wide range of applications in mid-infrared band difference frequency generation, anti-interference lidar, dual-wavelength holographic interferometry, and other applications.
Zhuo Zhang   +11 more
doaj   +1 more source

Sub-40 GHz Broadband Polarization Chaos Generation Using Mutually Coupled Free-Running VCSELs

open access: yesPhotonics, 2023
We propose a simple method to generate broadband polarization chaos using two mutually coupled free-running vertical-cavity surface-emitting lasers (VCSELs).
Haofan Bian   +8 more
doaj   +1 more source

Coherence in Multielement-Phased Vertical-Cavity Surface-Emitting Laser Arrays Using Resonance Tuning

open access: yesIEEE Photonics Journal, 2017
We show that optical coupling can be achieved reproducibly and with high yield by resonance tuning the elements of substrate-emitting and top-emitting vertical-cavity surface-emitting laser arrays.
Bradley J. Thompson   +5 more
doaj   +1 more source

Long-Wavelength High-Contrast Grating Vertical-Cavity Surface-Emitting Laser

open access: yesIEEE Photonics Journal, 2010
A novel long-wavelength vertical-cavity surface-emitting laser (VCSEL) structure based on a subwavelength high-contrast grating (HCG) as the output mirror has been realized.
Werner Hofmann   +7 more
doaj   +1 more source

Polarization switches in vertical-cavity surface-emitting lasers [PDF]

open access: yesSPIE Proceedings, 2004
The polarization dynamics of a vertical cavity surface emitting laser is investigated as a nonlinear stochastic dynamical system. The polarization switches in the device are considered as activation processes in a two dimensional system with a saddle cycle; the optimal way of switching is determined as the solution of a boundary value problem.
Beri S.   +3 more
openaire   +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

VCSEL Technology for Green Optical Interconnects

open access: yesIEEE Photonics Journal, 2012
State-of-the-art vertical-cavity surface-emitting laser (VCSEL) technology will be reviewed in terms of power consumption and reliability to realize the energy-efficient high-performance computing (HPC) and data centers.
A. Kasukawa
doaj   +1 more source

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