General Waveguide Bend Design Based on Cubic Spline Interpolation and Inverse Design

Zhang, Enge; Yang, Shanglin; Zhang, Lei

doi:10.1109/jlt.2024.3370675

J. Lightwave Technol.

2024

DOI: 10.1109/jlt.2024.3370675

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General Waveguide Bend Design Based on Cubic Spline Interpolation and Inverse Design

Enge Zhang,

Shanglin Yang,

Lei Zhang

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Cited by 5 publications

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Integrated Optical Tunable Delay Line and Microwave Photonic Beamforming Chip: A Review

Shi,

Niu,

Shi

et al. 2024

Laser & Photonics Reviews

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The microwave photonic (MWP) beamforming chip is a crucial component for achieving the miniaturization of optically controlled phased array radar systems. It addresses the unwanted ‘beam squint’ effect of traditional electronic antenna arrays in processing wideband RF signals through optical tunable delay lines (OTDLs), which has garnered significant attention and research efforts in recent years. This review provides a comprehensive overview of the latest research progress on the classification, working principle, calibration and delay measurement methods, driving and control technologies, and system function verifications of OTDL and MWP beamforming chips. Also, discussions about the challenges that need to be addressed and the future development trends for this technology are given.

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Integrated Optical Tunable Delay Line and Microwave Photonic Beamforming Chip: A Review

Shi,

Niu,

Shi

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

show abstract

An Improved Quadratic Spline Model Using Curvature Tip Compression—Particle Swarm Optimization to Forecast Accurately the Nonlinear Fluid Calibration Curve

Prakosa,

Alias,

Purwowibowo

et al. 2024

IEEE Access

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Low cross talk, low P _π silicon optical switch based on highly balanced couplers and folded phase shifters

Yang,

Zhang,

Zhang

et al. 2024

Opt. Lett.

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The cross talk and power consumption of the 2 × 2 optical switch is a key metric in the design of large-scale photonic integrated circuits (PICs). We build a theoretical model of a 2 × 2 Mach–Zehnder interferometer (MZI) optical switch, taking into account both imbalances in the arm loss and the coupler splitting ratio. The splitting ratio imbalance requirement for a given switch cross talk is summarized, which provides a guideline for the switch design. A 2 × 2 multimode interference (MMI) coupler design with low excess loss (<0.14 dB) and low imbalance (<0.13 dB) over the C-band is given. Its robustness to width variations up to ±40 nm is demonstrated. The 2 × 2 MZI switches with such an MMI are fabricated on a silicon-on-insulator (SOI) substrate using both electron beam (EB) and deep ultraviolet (DUV) lithography. The EB and DUV MMI switches exhibit cross talk of <−35 dB and <−30 dB over 40 nm, respectively. Folded configurations are used for both the silicon waveguides and the metal heaters to increase the power efficiency, resulting in a Pπ of ∼8 mW.

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General Waveguide Bend Design Based on Cubic Spline Interpolation and Inverse Design

Cited by 5 publications

References 46 publications

Integrated Optical Tunable Delay Line and Microwave Photonic Beamforming Chip: A Review

Integrated Optical Tunable Delay Line and Microwave Photonic Beamforming Chip: A Review

An Improved Quadratic Spline Model Using Curvature Tip Compression—Particle Swarm Optimization to Forecast Accurately the Nonlinear Fluid Calibration Curve

Low cross talk, low P _π silicon optical switch based on highly balanced couplers and folded phase shifters

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About

General Waveguide Bend Design Based on Cubic Spline Interpolation and Inverse Design

Cited by 5 publications

References 46 publications

Integrated Optical Tunable Delay Line and Microwave Photonic Beamforming Chip: A Review

Integrated Optical Tunable Delay Line and Microwave Photonic Beamforming Chip: A Review

An Improved Quadratic Spline Model Using Curvature Tip Compression—Particle Swarm Optimization to Forecast Accurately the Nonlinear Fluid Calibration Curve

Low cross talk, low P π silicon optical switch based on highly balanced couplers and folded phase shifters

Contact Info

Product

Resources

About

Low cross talk, low P _π silicon optical switch based on highly balanced couplers and folded phase shifters