Results 1 to 10 of about 3,171 (252)

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
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Spontaneously implemented spatial coherence in vertical-cavity surface-emitting laser dot array [PDF]

Scientific Reports, 2022
We report a self-induced spatially-coherent dot array consisting of fourteen units of vertical-cavity surface-emitting modes that exhibit spatially uniform spectra.
Tatsushi Hamaguchi, Tomohiro Makino, Kentaro Hayashi, Jared A. Kearns, Maho Ohara, Maiko Ito, Noriko Kobayashi, Shouetsu Nagane, Koichi Sato, Yuki Nakamura, Yukio Hoshina, Tatsurou Jyoukawa, Takumi Watanabe, Yuichiro Kikuchi, Eiji Nakayama, Rintaro Koda, Noriyuki Futagawa   +16 more
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Electrically pumped surface-emitting amplified spontaneous emission from colloidal quantum dots [PDF]

Light: Science & Applications
Colloidal quantum dots (QDs) are promising gain materials for realizing solution-processable, wavelength-tunable and low-cost laser diodes. However, achieving electrically pumped amplified spontaneous emission (ASE) in QDs, a prerequisite for lasing, is ...
Fengshou Tian, Tianhong Zhou, Xuanyu Zhang, Rui Chen, Shuming Chen   +4 more
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A 310 nm Optically Pumped AlGaN Vertical-Cavity Surface-Emitting Laser. [PDF]

ACS Photonics, 2021
Hjort F, Enslin J, Cobet M, Bergmann MA, Gustavsson J, Kolbe T, Knauer A, Nippert F, Häusler I, Wagner MR, Wernicke T, Kneissl M, Haglund Å.   +12 more
europepmc   +2 more sources

The relative intensity noise of a vertical-cavity surface-emitting laser with a fiber Bragg grating external cavity [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2021
The research deals with the topical problem of stabilizing the optical parameters of a single-mode vertical-cavity surfaceemitting laser. A solution to the problem is proposed by forming an external cavity based on a Bragg grating induced into an optical
Vladimir A. Shulepov, Stanislav M. Aksarin, Vladimir E. Strigalev   +2 more
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First vertical-cavity surface-emitting laser made entirely in Poland [PDF]

Bulletin of the Polish Academy of Sciences: Technical Sciences, 2021
The paper presents the first vertical-cavity surface-emitting lasers (VCSELs) designed, grown, processed and evaluated entirely in Poland. The lasers emit at »850 nm, which is the most commonly used wavelength for short-reach (
Marcin Gębski, Patrycja Śpiewak, Walery Kołkowski, Iwona Pasternak, Weronika Głowadzka, Włodzimierz Nakwaski, Robert P. Sarzała, Michał Wasiak, Tomasz Czyszanowski, Włodzimierz Strupiński   +9 more
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Monolithic 45 Degree Deflecting Mirror as a Key Element for Realization of 2D Arrays of Laser Diodes Based on AlInGaN Semiconductors

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, Anna Kafar, Jacek Kacperski, Krzysztof Gibasiewicz, Dario Schiavon, Takao Oto, Szymon Grzanka, Piotr Perlin   +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, Chenxi Hao, Wanhua Zheng, Anjin Liu   +3 more
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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, Michal L. Lukowski, Jason T. Meyer, Chris Hessenius, Ewan M. Wright, Mahmoud Fallahi   +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, Jing Zhang, Chenxi Hao, Minglu Wang, Wanhua Zheng   +4 more
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