Results 81 to 90 of about 5,833,148 (164)

Efficient scaling of VCSELs to wavelength dimensions via lithographically defined cavities

open access: yesJPhys Photonics
The miniaturization of lasers is critical for on-chip optical communication and high-speed data processing beyond the limits of electronics and current high-speed lasers.
Abdulmalik Abdulkadir Madigawa   +2 more
doaj   +1 more source

Compact optical pumping system based on offaxis freeform mirror collimation for miniaturized atomic gyroscopes [PDF]

open access: yesEPJ Web of Conferences
Conventional optical systems for laser beam expansion, collimation, and reflective path configurations in miniaturized atomic gyroscopes face challenges due to excessive volume and component complexity, limiting further optical integration.
Xu Yan, Chai Zhen, Li Jianli
doaj   +1 more source

Passively mode-locked diode-pumped surface-emitting semiconductor laser

open access: yes, 2000
A surface-emitting semiconductor laser has been passively mode locked in an external cavity incorporating a semiconductor saturable absorber mirror. The gain medium consists of a stack of 12 InGaAs-GaAs strained quantum wells, grown above a Bragg mirror ...
Tropper, A.C.   +19 more
core   +1 more source

Noise and signal modeling of various VCSEL structures [PDF]

open access: yes, 2004
Current evolution in Datacoms and Gigabit Ethernet have made 850nm Vertical Cavity Surface Emitting Lasers(VCSEL) the most important and promising emitter.
Perchoux, Julien   +7 more
core   +1 more source

Supermode Si/III-V Lasers and Circular Bragg Lasers [PDF]

open access: yes, 2010
Semiconductor lasers are arguably the most important component in optical communications. This thesis investigates two types of semiconductor lasers that are useful in integrated optics.
Sun, Xiankai
core   +1 more source

Increasing Single-Mode Power in VCSELs With Antiresonant Oxide Island

open access: yesIEEE Photonics Journal
This article focuses on increasing the single-mode power in Vertical Cavity Surface Emitting Lasers (VCSELs) through the strategic integration of an antiresonant oxide islands.
Marta Wieckowska, Maciej Dems
doaj   +1 more source

Vertical Cavity Surface Emitting Laser (VCSEL) Market Analysis.

open access: yes
The VCSEL market, valued at USD $1.18 billion in 2020 and projected to reach USD $4.15 billion by 2030 (11.5% CAGR), is driven by its use in high-speed data communication, 3D sensing in consumer electronics, and LiDAR for autonomous vehicles. VCSELs offer superior beam quality, making them key components in data centers and next-generation automotive ...
openaire   +2 more sources

Near-field measurement and four-wave mixing in single-polarization elliptical multimode VCSELs

open access: yesJPhys Photonics
We investigate the impact of transverse mode coupling caused by four-wave mixing (FWM) in elliptical multimode vertical cavity surface emitting lasers (VCSELs) with polarization control.
Cristina Rimoldi   +5 more
doaj   +1 more source

Variable numerical-aperture temporal-coherence measurement of resonant-cavity LEDs [PDF]

open access: yes, 2003
The first interferometric measurements of temporal-coherence length variation with numerical aperture (NA) are described for 650 nm, resonant-cavity light-emitting diodes (LEDs) agreeing with spectrally derived results.
Coutinho, RC   +6 more
core  

Reconfigurable Millimeter-Wave Generation via Mutually Injected Spin-VCSELs

open access: yesPhotonics
We propose a novel scheme for generating high-frequency millimeter-wave signals by exploiting period-one (P1) dynamics in a mutual injection configuration of two spin-polarized vertical-cavity surface-emitting lasers (spin-VCSELs).
Yichuan Xiong   +4 more
doaj   +1 more source

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