Direct Evidence of the Leaky Emission in Oxide-Confined Vertical Cavity Lasers

Shchukin, V. A.; Ledentsov, N. N.; Kropp, J.‐R.; Burger, Sven; Schmidt, Frank

doi:10.1109/jqe.2016.2518081

Cited by 18 publications

(4 citation statements)

References 26 publications

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“…SM operation in oxide-confined VCSELs can be achieved via the proper engineering of the optical modes in VCSELs [29], enabling the preferential lateral leakage of highorder modes.…”

Section: Leaky Vcselsmentioning

confidence: 99%

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Application of nanophotonics to the next generation of surface-emitting lasers

et al. 2017

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Novel trends and concepts in the design and fabrication of vertical cavity surface-emitting lasers (VCSELs) and their integration in optical networks and implementation in integrated photonics applications are discussed. To serve these goals and match the growing bandwidth demands, significant changes are to be implemented in the device design. New lateral leakage-mediated singlemode VCSELs, including both devices confined by oxide layers and those confined by alloy-intermixed regions, are likely to be good candidates for light sources for the data networks of the future. An overview of the records in VCSEL transmission distances and transmission speeds is discussed in this context.

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“…SM operation in oxide-confined VCSELs can be achieved via the proper engineering of the optical modes in VCSELs [29], enabling the preferential lateral leakage of highorder modes.…”

Section: Leaky Vcselsmentioning

confidence: 99%

“…[29], it is shown that a 3D simulation of the EM field allows an accurate prediction of the specific features in the far-field pattern of the laser emission. To visualize this effect, Figure 7 shows a cross-section of the VCSEL with simulated optical fields.…”

Section: Leaky Vcselsmentioning

confidence: 99%

Application of nanophotonics to the next generation of surface-emitting lasers

et al. 2017

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“…At present, there are four common image motion compensation methods: shortening the exposure time, Time Delay Integration (TDI) compensation, moving Charge Coupled Device [7] (CCD) compensation, and FSM compensation [8] . The FSM image motion compensation method will be the topic of this paper.…”

Section: Introductionmentioning

confidence: 99%

Compensation method for image motion of airborne camera based on fast-steering mirror

Fei

Sun³

et al. 2023

Third International Conference on Mechanical Design and Simulation (MDS 2023)

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Camera imaging quality is of great importance to aerial photography and space photography, especially in the field of military reconnaissance and telemetry of geographic resources. During the flight of the airborne camera, the image motion is caused by factors such as the flight speed and flight attitude of the aircraft, which will greatly reduce the image resolution and seriously affect the imaging quality of the camera. In this paper, it is analyzed that various factors of produce image motion in the imaging process of airborne camera, the imaging coordinate system of airborne camera is established, the mathematical model of image motion is established by using the homogeneous coordinate transformation method, and the function relation between the compensation angle of two-axes of the fast-steering mirror (FSM) and the image motion is obtained at last. By establishing a simulation model, the influence of aircraft flight attitude on the imaging quality of the camera is analyzed, which provides a basis for the image motion compensation strategy of airborne camera.

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“…As we all know, the oxidation confined layer with good insulation and low refractive index can be used to achieve electrical and optical mode confinement through transverse oxidation of Al 0.98 Ga 0.02 As [4][5][6][7][8] . Moreover, the oxidation confined layer can improve the quantum efficiency to obtain lower threshold current and higher power conversion efficiency.…”

Section: Introductionmentioning

confidence: 99%

Wet nitrogen oxidation technology and its anisotropy influence on VCSELs

He¹,

He²,

Zhou³

et al. 2018

J. Semicond.

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Vertical cavity surface emitting lasers (VCSELs) are widely used in optical communications and optical interconnects due to their advantages of low threshold, low power consumption and so on. Wet nitrogen oxidation technology, which utilizes H2O molecules to oxidize the Al0.98Ga0.02As, is used for electrical and optical mode confinement. In this paper, the effects of oxidation time, oxidation temperature and oxidation anisotropy on the oxidation rate are explored and demonstrated. The ratio of oxidation rate on [0–11] to [011] crystal orientation is defined as oxidation anisotropy coefficient, which decreases with the increase of oxidation temperature and oxidation time. In order to analyze the effect of the oxidation anisotropy on the VCSEL performance, an oxide-aperture of the VCSELs with two difference shapes is designed and then fabricated. The static performance of these fabricated VCSELs has been measured, whose threshold current ratio ~ 0.714 is a good agreement with that of the theoretical calculation value ~ 0.785. Our research on wet nitrogen oxidation and its anisotropy serves as an important reference in the batch fabrication of large-area VCSELs.

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Direct Evidence of the Leaky Emission in Oxide-Confined Vertical Cavity Lasers

Cited by 18 publications

References 26 publications

Application of nanophotonics to the next generation of surface-emitting lasers

Application of nanophotonics to the next generation of surface-emitting lasers

Compensation method for image motion of airborne camera based on fast-steering mirror

Wet nitrogen oxidation technology and its anisotropy influence on VCSELs

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