Results 41 to 50 of about 5,833,148 (164)

GaN-based vertical-cavity surface-emitting lasers toward high efficiency

open access: yesApplied Physics Express
Vertical-cavity surface-emitting lasers (VCSELs) are highly efficient compact semiconductor lasers that can offer high light output power through two-dimensional array configurations.
Tetsuya Takeuchi   +3 more
doaj   +1 more source

Submonolayer Quantum Dots for High Speed Surface Emitting Lasers

open access: yesNanoscale Research Letters, 2007
We report on progress in growth and applications of submonolayer (SML) quantum dots (QDs) in high-speed vertical-cavity surface-emitting lasers (VCSELs).
Zakharov ND   +17 more
doaj   +1 more source

Side‐DBR Guided Exciton‐Polariton Lasing With Near‐Field Mode Imaging in an InGaN Thin‐Film Ridge Waveguide

open access: yesLaser &Photonics Reviews, EarlyView.
Room‐temperature lower‐polariton‐like lasing is realized in an InGaN/GaN thin‐film ridge cavity with lateral distributed Bragg reflectors. Near‐field optical microscopy distinguishes the transverse side‐DBR‐confined mode from a longitudinal photon‐like mode, while simulations reproduce their spatial profiles.
Wai Yuen Fu   +2 more
wiley   +1 more source

Drive‐Efficient GHz‐Rate Binary‐State Updates Enabled by VCSEL Polarization Switching

open access: yesLaser &Photonics Reviews, EarlyView.
Photonic computing needs a compact node that can hold a binary state and update it fast. A vertical‐cavity surface‐emitting laser biased at its polarization‐switching point could serve as one: its two orthogonal linear polarizations are the two states, and a small electrical drive is enough to move the output from one state to the other at gigahertz ...
Zifeng Yuan   +6 more
wiley   +1 more source

Modeling and characterization of VCSEL-based avionics full-duplex ethernet (AFDX) gigabit links [PDF]

open access: yes, 2008
Low cost and intrinsic performances of 850 nm Vertical Cavity Surface Emitting Lasers (VCSELs) compared to Light Emitting Diodes make them very attractive for high speed and short distances data communication links through optical fibers.
Rissons, Angélique   +4 more
core   +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

Ultrahigh Detectivity Colloidal Quantum dot Avalanche Photodetectors Driven by Electron Mobility of the n‐Type Layer

open access: yesAdvanced Electronic Materials, Volume 12, Issue 19, 12 October 2026.
Herein, electron mobility of the n‐type layer is demonstrated to be a key parameter governing detection performance in CQD‐APDs through a comparative study of ZnO nanoparticles (NPs) and ZnO sol–gel (S‐G). The incorporation of ZnO NPs with high electron mobility facilitates efficient extraction of photogenerated electrons, thereby achieving improved ...
Changjo Kim, Byeongsu Kim
wiley   +1 more source

Top-emitting 940-nm thin-film VCSELs transferred onto aluminum heatsinks

open access: yesScientific Reports, 2022
Thin-film vertical cavity surface emitting lasers (VCSELs) mounted onto heatsinks open up the way toward low-power consumption and high-power operation, enabling them to be widely used for energy saving high-speed optical data communication and three ...
Sunghyun Moon   +6 more
doaj   +1 more source

Integrated Sensing and Communication in a Fiber‐Wireless System With Time‐Phase Synthesis Dimension Waveform

open access: yesNanophotonics, Volume 15, Issue 17, 11 September 2026.
A unified fiber‐wireless integrated sensing and communication system is enabled by a single microwave photonic platform with a time‐phase synthesis dimension waveform. This architecture simultaneously delivers high‐speed data transmission, high‐precision wireless ranging, and accurate fiber diagnostics over a high‐power analog radio‐over‐fiber link ...
Shengkun Chen   +9 more
wiley   +1 more source

External cavity mode structure of a two-mode VCSEL subject to optical feedback [PDF]

open access: yes, 2007
We consider a multi-transverse-mode vertical-cavity surface-emitting laser (VCSEL) subject to optical feedback. The system is modeled by a partial differential equation for the spatial carrier population, which is coupled to delay differential equations ...
Green, K   +5 more
core   +1 more source

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