Grating-Assisted Microcylinder Surface-Emitting Laser

Ma, Xiang; Chen, Quanan; Lu, Qiaoyin; Guo, Weihua

doi:10.1109/jlt.2016.2604002

Cited by 10 publications

(4 citation statements)

References 16 publications

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“…The side grating can select the symmetrical mode with the azimuthal mode number ( m ) equal to the period number of the side grating ( N ) to be the lasing mode through the scattering cancellation mechanism (see Supporting Information). ,, However, the microring cavity with only the side grating contributes less to the upward emission and has limited emission efficiency for the symmetrical mode.…”

Section: Device Design and Fabricationmentioning

confidence: 99%

“…We then study the case with only the top grating. The outer radius is still 10 μm, and the duty cycle of the top grating is set to be 0.3 so as to get more radially polarized emission Figure c.…”

Section: Device Design and Fabricationmentioning

confidence: 99%

“…The outer radius is still 10 μm, and the duty cycle of the top grating is set to be 0.3 so as to get more radially polarized emission. 33 The scattered field of the symmetrical mode is much stronger than the antisymmetrical mode from the calculated Q factors.…”

mentioning

confidence: 91%

“…When the microring cavity is added with only the side grating, two types of grating shapes are considered for comparison, that is, the rectangular shape and the triangular one. The duty cycle of the side grating is selected to be 0.75 so as to lower the scattering loss, 33 as shown in Figure 2a. The depth of the side grating is set to be 0.1 μm.…”

mentioning

confidence: 99%

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High-Speed Directly Modulated Cylindrical Vector Beam Lasers

Zheng

Chen

et al. 2019

ACS Photonics

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Cylindrical vector (CV) beams are highly desirable for wide applications ranging from manipulation to communications. Despite diverse schemes of CV beam emitters, the efficient generation of vector beams by active photonic integrated devices, especially for direct modulation, is still an outstanding challenge. Here, we report the first high-speed directly modulated CV beam laser under electrical pumping. InP-based microring cavities with two sets of optimized second-order gratings enable single-mode lasing and efficient emission assisted by ion implantation. The high-differential-gain multiplequantum-well structure and small active region benefit high-speed modulation. The surface emission facilitates easy 2D array integration. CV beam lasing is achieved with >1 mW output power and ∼50 dB side-mode suppression ratio (SMSR). CV beam lasers at 8−20 Gbit/s are realized in the experiment. Moreover, a 2 km fiber vector eigenmode transmission link, seeded by a 10 Gbit/s directly modulated CV beam laser, is also demonstrated with favorable performance. These may open a door to find more CV beam enabled classical and quantum communication applications employing integrated lasers.

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Section: Device Design and Fabricationmentioning

confidence: 99%

Section: Device Design and Fabricationmentioning

confidence: 99%

mentioning

confidence: 91%

mentioning

confidence: 99%

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High-Speed Directly Modulated Cylindrical Vector Beam Lasers

Zheng

Chen

et al. 2019

ACS Photonics

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Gold nanoparticle-enhanced amplified spontaneous emission of laser dye molecules in diode-pumped organic solid-state lasers

Lin

Lan

et al. 2020

IOP Conf. Ser.: Mater. Sci. Eng.

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Gold nanoparticles (AuNPs) were introduced to enhance surface-amplified spontaneous emission of laser dye molecules, 4-(dicyanomethylene)-2-t-butyl-6(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran (DCJTB) doped N,N’-bis-(1-naphthyl)-N,N’-diphenyl-1,1’-biphenyl-4,4’-diamine (NPB), taking advantage of localized surface plasmonresonance (LSPR) effect and scattering effect. With emission received from the back surface of the substrate, the optically pumped gain medium with AuNPs, exhibits higher peak intensity, lower threshold, and better Q-factor of when compared with the neat gain medium without AuNPs. Moreover, to realize an organic solid-state laser pumped by electroluminescence emission in an integrated organic light emitting diode (OLED), NPB: DCJTB was embedded as color conversion-hole transport layer (CC-HTL). The AuNPs deposited on the ITO glass substrate of the OLED were also employed to enhance the photoluminescence of the CC-HTL. The maximum luminance, current efficiency and power efficiency improved by 21.55%, 21.90% and 42.11% at 150 mA/cm2 of AuNPs-OLED, respectively, compared to the OLED without AuNPs. These results were attributed to the enhanced hole injection caused by AuNPs as well as LSPR and scattering effects. The introduction of AuNPs provides a simple and promising method to realize diode-pumped organic solid-state lasers.

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Demonstration of Single-mode Surface-emitting Laser with High-order Mode

et al. 2022

2022 Asia Communications and Photonics Conference (ACP)

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Grating-Assisted Microcylinder Surface-Emitting Laser

Cited by 10 publications

References 16 publications

High-Speed Directly Modulated Cylindrical Vector Beam Lasers

High-Speed Directly Modulated Cylindrical Vector Beam Lasers

Gold nanoparticle-enhanced amplified spontaneous emission of laser dye molecules in diode-pumped organic solid-state lasers

Demonstration of Single-mode Surface-emitting Laser with High-order Mode

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