Efficient design of silicon slot waveguide optical modulator

Malviya, Nishit; Priye, Vishnu

doi:10.1016/j.opelre.2017.08.001

Cited by 9 publications

(2 citation statements)

References 17 publications

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“…Therefore, we calculated the confinement factor by estimating the ratio of the entire electric field density and slot area density. This confinement factor represents the density of the fields in the slot area [18,19]. Next, we calculated the effective index of the SiO 2 slot waveguide as a function of slot thickness (t), as shown in Figure 3a, where the low-index SiO 2 slot is sandwiched between high-index Si materials at the center of the Si slab with a height (H) of 1000 nm.…”

Section: Dispersion Curves Of Slot Slab Waveguidementioning

confidence: 99%

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Photonic Crystal Cavity with a Thin Low-Index Layer for Silicon-Compatible Nanolight Source

et al. 2018

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The development of an efficient silicon-based nanolight source is an important step for silicon-based photonic integrated circuits. We propose a high quality factor photonic crystal nanocavity consisting of silicon and silica, which can be used as a silicon-compatible nanolight source. We show that this cavity can effectively confine lights in a low-index silica layer with a high confinement factor of 0.25, in which rare-earth dopants can be embedded as gain materials. The cavity is optimized to have a high quality factor of 15,000 and a mode volume of 0.01 μm3, while the resonance has a wavelength of 1537 nm. We expect that the high confinement factor in the thin silica layer and the high quality factor of the proposed cavity enable the cavity to be a good candidate for silicon-compatible nanolight sources for use in nanolasers or light-emitting diodes in the telecommunication wavelength region.

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Section: Dispersion Curves Of Slot Slab Waveguidementioning

confidence: 99%

Section: Dispersion Curves Of Slot Slab Waveguidementioning

confidence: 99%

Photonic Crystal Cavity with a Thin Low-Index Layer for Silicon-Compatible Nanolight Source

et al. 2018

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Analytical predictions for nonlinear optical processes in silicon slot waveguides

2018

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Modeling and optimization of photonic integrated Silicon-LiNbO₃ hybrid interferometer for E-S-C-L wavelength band

Vardhan,

Singh

2024

Eng. Res. Express

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The Silicon on Insulator (SOI) is a potential technology for thin-film optical waveguide, enabling the design of optical interconnects, including modulators and interferometers. The manuscript presents the broadband modulator for phase and intensity modulation. The nanoscale optimized interferometric modulator utilizes Silicon (Si) and Electro-optic material Lithium Niobate (LiNbO3) as the guiding material to work in terahertz regime, without any bends in the structure. Optimization of the structure is validated by the evaluation of the confinement factor at the operational wavelength of 1550 nm using Finite Element Method (FEM) based simulation. To excite the SOI interferometric modulator, an external RF signal with a maximum amplitude of 5 V is used. The hybrid structure of silicon and LiNbO3-based modulators shows the electro-optic phenomenon caused by nonlinearities, namely the Pockels effect and Kerr effect, which in turn changes the effective mode index, providing π phase shift along with -0.92 dB/cm absorption loss, 117 µm electrode length at Vπ Volts and 265 nm 3dB optical bandwidth covering the E-S-C-L optical bands. The device footprint calculated is 667 µm2, whereas the active region footprint is ~ 46.8 µm2.

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Efficient design of silicon slot waveguide optical modulator

Cited by 9 publications

References 17 publications

Photonic Crystal Cavity with a Thin Low-Index Layer for Silicon-Compatible Nanolight Source

Photonic Crystal Cavity with a Thin Low-Index Layer for Silicon-Compatible Nanolight Source

Analytical predictions for nonlinear optical processes in silicon slot waveguides

Modeling and optimization of photonic integrated Silicon-LiNbO₃ hybrid interferometer for E-S-C-L wavelength band

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Efficient design of silicon slot waveguide optical modulator

Cited by 9 publications

References 17 publications

Photonic Crystal Cavity with a Thin Low-Index Layer for Silicon-Compatible Nanolight Source

Photonic Crystal Cavity with a Thin Low-Index Layer for Silicon-Compatible Nanolight Source

Analytical predictions for nonlinear optical processes in silicon slot waveguides

Modeling and optimization of photonic integrated Silicon-LiNbO3 hybrid interferometer for E-S-C-L wavelength band

Contact Info

Product

Resources

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Modeling and optimization of photonic integrated Silicon-LiNbO₃ hybrid interferometer for E-S-C-L wavelength band