Results 1 to 10 of about 13,644 (191)

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

open access: yesNanophotonics
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   +8 more
doaj   +2 more sources

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

open access: yesNature 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   +10 more
doaj   +2 more sources

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

open access: yesScientific 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   +4 more
doaj   +2 more sources

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

open access: yesNature 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   +2 more sources

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

open access: yesIEEE 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   +6 more
openaire   +3 more sources

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

open access: yesFrontiers 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   +3 more
doaj   +1 more source

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

open access: yesAdvanced 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   +7 more
doaj   +1 more source

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

open access: yesAdvanced 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   +5 more
doaj   +1 more source

Low-Timing-Jitter and Low-Phase-Noise Microwave Signal Generation Using a VCSEL-Based Optoelectronic Oscillator

open access: yesIngeniería e Investigación, 2021
This article presents the first results of the timing-jitter characterization of a VCSEL-based optoelectronic oscillator (VBO) at 2,5GHz. For all implementations, vertical-cavity surface-emitting lasers (VCSEL) emitting in the O and C-bands were ...
Christian Daniel Muñoz   +4 more
doaj   +1 more source

Influence of weak injection on spatiotemporal instabilities in a broad-area vertical-cavity semiconductor laser

open access: yesКомпьютерная оптика, 2023
The dynamics of a broad-area vertical-cavity semiconductor surface-emitting laser (VCSEL) is theoretically investigated with due regard for the Henry factor. A linear analysis of the stability of a spatially homogeneous lasing regime is performed and the
E.A. Yarunova   +2 more
doaj   +1 more source

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