High-power single-mode 894 nm VCSELs operating at high temperature (&gt; 2 mW @ 365 K)

Ii, Xue; Zhou, Yinli; Zhang, Xing; Zhang, Jianwei; Zeng, Yugang; Wang, Lijun

doi:10.1007/s00340-021-07748-w

Appl. Phys. B

2022

DOI: 10.1007/s00340-021-07748-w

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High-power single-mode 894 nm VCSELs operating at high temperature (> 2 mW @ 365 K)

Xue Ii

Yinli Zhou

Xing Zhang

et al.

Abstract: In this study, we realize the high-power output of a single-mode 894 nm vertical-cavity surface-emitting laser (VCSEL) at high temperature. The effects of the dimensional parameters of oxide aperture and surface relief on the transverse mode and threshold gain of VCSEL were analyzed. Through collaborative optimization of the oxide aperture and relief, the VCSEL with 8 µm oxide aperture diameter and 5 µm surface relief inner diameter can operate at high temperature of 365 K with single-mode output power of 2.02… Show more

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Cited by 7 publications

References 16 publications

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

Mu,

Zhou,

Zhang

et al. 2023

Results in Physics

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

Mu,

Zhou,

Zhang

et al. 2023

Results in Physics

View full text Add to dashboard Cite

High-performance multi-junction cascade 1.3 µm quantum dot vertical cavity surface-emitting laser

Ping,

Bo,

Liang

et al. 2024

Opt. Lett.

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A high-performance 5-junction cascade quantum dot (QD) vertical cavity surface-emitting laser (VCSEL) with 1.3 µm wavelength was designed. The characteristics of the QD as active regions and tunnel junctions are combined to effectively increase output power. The photoelectric characteristics of single-junction, 3-junction cascade, and 5-junction cascade QD VCSELs are compared at continuous-wave conditions. Results indicate that the threshold current gradually decreases, and the output power and slope efficiency exponential increase with the increase of the number of active regions. The peak power conversion efficiency of 58.4% is achieved for the 5-junction cascade individual QD VCSEL emitter with 10 µm oxide aperture. The maximum slope efficiency of the device is 6.27 W/A, which is approximately six times than that of the single-junction QD VCSEL. The output power of the 5-junction cascade QD VCSEL reaches 188.13 mW at injection current 30 mA. High-performance multi-junction cascade 1.3-µm QD VCSEL provides data and theoretical support for the preparation of epitaxial materials.

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Wavelength tuning of VCSELs via controlled strain

Guessoum,

Kyriazis,

Malica

et al. 2024

Opt. Lett.

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Besides major advantages for telecommunication applications, vertical-cavity surface-emitting lasers (VCSELs) have attracted interest for their potential for neuro-inspired computing, frequency comb generation, or high-frequency spin oscillations. In the meantime, strain applied to the laser structure has been shown to have a significant impact on the laser emission properties such as the polarization dynamics or birefringence. In this work, we further explore the influence of strain on VCSELs and how this effect could be used to fine-tune the laser wavelength. Through a comprehensive investigation, we demonstrate a consistent wavelength shift up to 1 nm and report a sensitivity between 0.12 and 0.18 nm/millistrain. We also record birefringence values up to 292 GHz. Our results show that a controlled strain level could be considered for fine wavelength tuning and possibly alleviate the selection of VCSEL for precise wavelength requirements.

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High-power single-mode 894 nm VCSELs operating at high temperature (> 2 mW @ 365 K)

Cited by 7 publications

References 16 publications

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

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

High-performance multi-junction cascade 1.3 µm quantum dot vertical cavity surface-emitting laser

Wavelength tuning of VCSELs via controlled strain

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