Results 1 to 10 of about 2,658 (232)

Antireflective vertical-cavity surface-emitting laser for LiDAR [PDF]

Nature Communications
Multijunction vertical-cavity surface-emitting lasers (VCSELs) have gained popularity in automotive LiDARs, yet achieving a divergence of less than 16° (D86) is difficult for conventional extended cavity designs due to multiple-longitudinal-mode lasing ...
Cheng Zhang, Huijie Li, Dong Liang
doaj   +3 more sources

Strong Lateral Mode Confinement by Embedding SiO₂ Nanospheres in the DBRs of GaN-Based VCSELs [PDF]

Micromachines
In this work, we report the realization of curved distributed Bragg reflectors (DBRs) without the need for lithography to achieve strong lateral confinement in a GaN-based vertical cavity. By embedding SiO2 nanospheres during deposition, curved DBRs with
Huanqing Chen, Menglai Lei, Linghai Meng, Zihao Chu, Weihua Chen, Xiaodong Hu   +5 more
doaj   +2 more sources

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

مجلة 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

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, Chenxi Hao, Wanhua Zheng, Anjin Liu   +3 more
doaj   +1 more source

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, Jing Zhang, Chenxi Hao, Minglu Wang, Wanhua Zheng   +4 more
doaj   +1 more source

A novel metal-mode-filtered vertical-cavity surface-emitting laser with 8 μm oxide aperture and single mode output

Results in Physics, 2023
In this study, a new theoretical calculation of metal-mode-filtered vertical-cavity surface-emitting laser (MMF-VCSEL) is proposed. The optimized number of P-DBR and the metal layer thickness are used.
Jingfei Mu, Yinli Zhou, Xing Zhang, Jianwei Zhang, Chao Chen, Zhuo Zhang, Tianjiao Liu, Yuqi Xia, Yuehui Xu, Jingjing Sun, Haopeng Bai, Yongqiang Ning, Lijun Wang   +12 more
doaj   +1 more source

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

Crystals, 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, Wei-Ta Huang, Hsin-Chan Chung, Guan-Hao Chang, Dong Yang, Zhi-Kuang Lu, Shou-Lung Chen, Hao-Chung Kuo   +7 more
doaj   +1 more source

Design of High-Power Red VCSEL on a Removable Substrate

Photonics, 2022
In this work, the architecture of a high-power InAlGaP/InGaP vertical-cavity surface-emitting laser (VCSEL) with an emission wavelength of 680 nm was studied.
Chun-Yen Peng, Wei-Ta Huang, Zhi-Kuang Lu, Shih-Chen Chen, Hao-Chung Kuo   +4 more
doaj   +1 more source

Breakthroughs in Photonics 2014: Coherent Vertical-Cavity Surface-Emitting Laser Arrays

IEEE Photonics Journal, 2015
Coherently coupled vertical-cavity surface-emitting laser (VCSEL) arrays exhibit novel optical properties, which can be exploited for applications. After a brief review of prior semiconductor optically coupled microcavity laser arrays, we discuss recent ...
Stewart T. M. Fryslie, Kent D. Choquette
doaj   +1 more source

VCSEL with multi-transverse cavities with bandwidth beyond 100 GHz

Nanophotonics, 2021
To fulfill the demands of high-speed photonic applications, researchers, and engineers have been working to improve the modulation bandwidth (MBW) of semiconductor lasers.
Heidari Elham, Ahmed Moustafa, Dalir Hamed, Bakry Ahmed, Alshahrie Ahmed, Sorger Volker J.   +5 more
doaj   +1 more source