基于冻结模式的毫米波波束形成和光网络的新型片上真时延引擎

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI) Pub Date : 2022-07-10 DOI:10.1109/AP-S/USNC-URSI47032.2022.9886488

Banaful Paul, N. Nahar, K. Sertel

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引用次数: 0

摘要

我们提出了一种基于绝缘体上硅平台的简单全介电光子波导结构，该结构具有三阶简并，可以实现冻结模式。这种群速度消失的简并传播模式是通过在相邻的3个硅脊波导之间引入耦合，在色散图中设计一个静止拐点，从而实现冻结模式和一个能够用于毫米波相控阵的0.5太赫兹超宽带波束形成的真正的时间延迟器件。对于1tbit /s的光传输系统，该设备能够提供多达14位的数据缓冲或同步。与自由空间光学相比，光的速度降低了600倍，除了相控阵的超宽带波束形成外，还可以用于生物传感器和光学相干层析成像等应用。

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Novel On-chip True Time Delay Engine using Frozen Modes for mm-Wave Beamforming and Optical Networking

We present a simple all-dielectric photonic waveguide structure based on Silicon-on-Insulator platform that exhibits 3rd-order degeneracy enabling frozen modes. Such degenerate propagation modes with vanishing group velocity is realized by introducing coupling among 3 neighboring Si ridge waveguides to design a stationary inflection point in the dispersion diagram, leading to the frozen mode and a true time delay device capable of 0.5 THz ultra-wide-band beamforming for millimeter wave phased arrays. For a 1 Tbit/s optical transmission system, the device is capable of data buffer or synchronization of up to 14 bits. The 600x slowing down of light compared to free space optics could be utilized for applications like biosensors and optical coherence tomography, in addition to ultra-wideband beamforming of phased arrays.

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来源期刊

2022 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting (AP-S/URSI)

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