Results 11 to 20 of about 3,159 (260)
Antireflective vertical-cavity surface-emitting laser for LiDAR [PDF]
Nature CommunicationsMultijunction 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 +16 more
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Electrically pumped surface-emitting amplified spontaneous emission from colloidal quantum dots [PDF]
Light: Science & ApplicationsColloidal 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 +4 more
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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 +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 +9 more
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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 The goal of this project was to increase the power of vertical cavity surface emitting lasers and to convert their wavelength into the blue/ultraviolet and the infrared for sensing applications. We have increased the power to the multi-watt level and have generated several milliwatts of blue light using optical pumping.
Smith, Arlee V. +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 +5 more
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