Results 11 to 20 of about 19,724 (234)
Micromachines, 2023 In this study, we propose a solution for realization of surface emitting, 2D array of visible light laser diodes based on AlInGaN semiconductors. The presented system consists of a horizontal cavity lasing section adjoined with beam deflecting section in
Kiran Saba +7 more
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Vertical Cavity With a Chirped Heterostructure Dual-Period High-Contrast Grating
IEEE Photonics Journal, 2022 A vertical cavity using a chirped heterostructure dual-period high-contrast grating (HCG) by simple fabrication is demonstrated. The reflectivity spectra of the vertical cavity were measured, consistent well with the calculated results.
Jing Zhang +3 more
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Vertical Cavity Surface Emitting Terahertz Laser [PDF]
Physical Review Letters, 2012 Vertical cavity surface emitting terahertz lasers can be realized in conventional semiconductor microcavities with embedded quantum wells in the strong coupling regime. The cavity is to be pumped optically at half the frequency of the 2p exciton state.
Kavokin, A.V. +3 more
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Vertical-Cavity Surface-Emitting Lasers [PDF]
MRS Bulletin, 2002 AbstractThis issue of MRS Bulletin presents a review of the progress that vertical-cavity surface-emitting lasers (VCSELs) have made throughout the wavelength spectrum. A VCSEL is a semiconductor laser diode in which light propagates normal to the epitaxial layers.
Kevin L. Lear, Eric D. Jones
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Intra-Cavity Astigmatic Mode Converting VECSEL
IEEE Photonics Journal, 2022 We report the design and demonstration of a vertical external cavity surface emitting laser with intra-cavity astigmatic mode converters. Using a flexible optical pumping scheme Hermite-Gaussian transverse modes were excited at the gain chip and end ...
Nathan S. Gottesman +5 more
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Surface-Emitting Lasers with Surface Metastructures
Photonics, 2023 Vertical-cavity surface-emitting lasers (VCSELs) have been widely used in consumer electronics, light detection and ranging, optical interconnects, atomic sensors, and so on. In this paper, a VCSEL with the surface metastructure like one-dimensional high-
Anjin Liu +4 more
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Reliability Analysis of Vertical Cavity Surface-Emitting Lasers Based on the Gamma Process
IEEE Access, 2020 Due to the long life and high reliability of vertical cavity surface-emitting lasers, the performance degradation experiment cost is high, and the experiment cycle is long, because the degradation failure process of a semiconductor laser is a monotonic ...
Jing Lu, Bin Luo
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Spatial tomography of light resolved in time, spectrum, and polarisation
Nature Communications, 2022 The work harnesses principles of spatial state tomography to fully characterise an optical beam in space, time, spectrum, and polarisation. Analysis of the output of a vertical-cavity surface-emitting laser illustrates the technique’s capabilities.
Martin Plöschner +6 more
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Low Divergence Coherently Coupled Vertical Cavity Surface Emitting Laser Ring Arrays
IEEE 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
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Reliability of vertical-cavity surface-emitting laser arrays with redundancy
Automatika, 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
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