Results 11 to 20 of about 1,346 (183)

Monolithic integration of one VCSEL on a single mode fiber [PDF]

Nanophotonics
The implementation of compact fiber-coupled light sources and devices represents a highly sought through technological goal, in wearable technologies, point-of-care units, telecommunication, and even quantum technology.
Piccirillo Federica, Zimmer Michael, Giaquinto Martino, Micco Alberto, Jetter Michael, Michler Peter, Cusano Andrea, Portalupi Simone Luca, Ricciardi Armando   +8 more
doaj   +2 more sources

Evolution of laser technology for automotive LiDAR, an industrial viewpoint [PDF]

Nature Communications
From an industry perspective, the past decade has been a whirlwind of innovation in automotive light detection and ranging (LiDAR). Numerous laser technologies and system solutions have been fiercely competing for market share.
Dong Liang, Cheng Zhang, Pengfei Zhang, Song Liu, Huijie Li, Shouzhu Niu, Ryan Z. Rao, Li Zhao, Xiaochi Chen, Hanxuan Li, Yijie Huo   +10 more
doaj   +2 more sources

Improved Output Power of GaN-based VCSEL with Band-Engineered Electron Blocking Layer

Micromachines, 2019
The vertical-cavity surface-emitting laser (VCSEL) has unique advantages over the conventional edge-emitting laser and has recently attracted a lot of attention.
Huiwen Luo, Junze Li
exaly   +3 more sources

Study of far-field reduction in high power 940 nm vertical-cavity surface-emitting lasers cascaded by tunnel junctions [PDF]

Scientific Reports
This paper characterizes the performance of 940 nm single-junction (1 J) and triple-junction (3 J) vertical-cavity surface-emitting laser (VCSEL) arrays, tested at room temperature under 1.8 ns pulsed current injection.
Wei-Hao Huang, Chi-Yao Shan, Kai-Lun Chi, Yi-Jun Xu, Tien-Chang Lu   +4 more
doaj   +2 more sources

Study on the performance of thin-film VCSELs on composite metal substrate

Frontiers of Optoelectronics, 2023
Thin film p-side up vertical-cavity surface-emitting lasers (VCSELs) with 940 nm wavelength on a composite metal (Copper/Invar/Copper; CIC) substrate has been demonstrated by twice-bonding transfer and substrate removing techniques.
William Anderson Lee Sanchez, Shreekant Sinha, Po-Yu Wang, Ray-Hua Horng   +3 more
doaj   +1 more source

Long Wavelength VCSEL-by-VCSEL Optical Injection Locking [PDF]

IEEE Transactions on Microwave Theory and Techniques, 2009
Vertical-cavity surface-emitting laser (VCSEL)-by-VCSEL optical injection locking to obtain high cutoff frequencies of 1.3-mum VCSELs is demonstrated. A detailed physical explanation of the underlying mechanism is presented. VCSELs from the same wafer have been used in a master-follower configuration.
Hayat, Ahmad, Bacou, Alexandre, Rissons, Angélique, Mollier, Jean-Claude, Iakovlev, Vladimir, Sirbu, Alexei, Kapon, Eli   +6 more
openaire   +3 more sources

High‐Performance Thin‐Film VCSELs Integrated with a Copper‐Plated Heatsink

Advanced Materials Interfaces, 2023
High‐performance continuous‐wave (CW) vertical‐cavity surface‐emitting lasers (VCSELs) rely on efficient thermal management for which top‐emitting 930 nm thin‐film VCSELs are integrated with a copper‐plated heatsink by using a double‐transfer technique ...
Sunghyun Moon, Yeojun Yun, Ohdo Kwon, Yonghyun Nam, Donghwan Kim, Won‐jin Choi, Sangin Kim, Jaejin Lee   +7 more
doaj   +1 more source

Wafer Scale III-Nitride Deep-Ultraviolet Vertical-Cavity Surface-Emitting Lasers Featuring Nanometer-Class Control of Cavity Length. [PDF]

Adv Sci (Weinh)
A DUV‐VCSEL strategy featuring the nanometer‐class control of the cavity length is proposed in the DUV optoelectronic framework based on GaN templates. After the sapphire removal, a self‐terminated etching technology is developed, whereby the cavity length can be accurately determined by epitaxy instead of the fabrication process. As such, a record low
Ji C, Wang J, Xu F, Zhang L, Lang J, Zhang Z, Tan F, Ji C, Zhang J, Zhang E, Kang X, Qin Z, Ju G, Wu J, Yang X, Tang N, Wang X, Ge W, Shen B.   +18 more
europepmc   +2 more sources

Regional Pulsewidth and Delay Nonuniformity of Modulated 940 nm Vertical‐Cavity Surface‐Emitting Laser Array

Advanced Photonics Research, 2022
Under pulsed modulation, the emission uniformity in terms of pulsewidth and delay of a 940 nm multimode vertical‐cavity surface‐emitting laser (MM‐VCSEL) array is characterized by analyzing the position‐dependent pulsating and chirping dynamics among ...
Wei-Chi Lo, Wei-Li Wu, Chih-Hsien Cheng, Cheng-Ting Tsai, Hao-Chung Kuo, Gong-Ru Lin   +5 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