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arXiv 2305.17366physics.opticsphysics.app-ph
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基于分裂波导交叉结构的硅光子MEMS开关

Silicon photonic MEMS switches based on split waveguide crossings

Yinpeng Hu, Yi Sun, Ye Lu, Huan Li, Liu Liu, Yaocheng Shi, Daoxin Dai

AI总结:

针对传统光开关的性能瓶颈,研究提出并实现了基于分裂波导交叉结构的硅光子MEMS 2×2基本开关及64×64 Benes拓扑阵列,具备超宽带宽下低损耗低串扰的优势,可应用于多类光子相关场景。

摘要:

对高性能光子开关的持续研发,是可编程与可重构光子电路在广泛应用中实现可持续规模扩展的最关键前提之一。传统光开关依赖模式耦合或模式干涉的微扰机制,导致其开关性能在尺寸、功耗和带宽方面存在固有瓶颈。本文提出并实现了一种基于由两部分构成的分裂波导交叉(split waveguide crossing, SWX)的硅基2×2基本开关单元。通过将SWX的两部分分离/结合来调控入射光的传播方向,以实现关断/导通状态,该开关在超宽带宽下表现出低附加损耗、低串扰的优异性能。我们制备并表征了基本开关单元以及基于Benes拓扑结构的64×64开关阵列,证明其在光子互连/路由、激光雷达与光谱学、光子计算以及微波光子学等实际场景中具有巨大应用潜力。

英文摘要:

The continuous push for high-performance photonic switches is one of the most crucial premises for the sustainable scaling of programmable and reconfigurable photonic circuits for a wide spectrum of applications. Conventional optical switches rely on the perturbative mechanisms of mode coupling or mode interference, resulting in inherent bottlenecks in their switching performance concerning size, power consumption and bandwidth. Here we propose and realize a silicon photonic 2x2 elementary switch based on a split waveguide crossing (SWX) consisting of two halves. The propagation direction of the incident light is manipulated to implement the OFF/ON states by splitting/combining the two halves of the SWX, showing excellent performance with low excess loss and low crosstalk over an ultrawide bandwidth. Both elementary switch and a 64x64 switch array based on Benes topology are fabricated and characterized, demonstrating great potential for practical scenarios such as photonic interconnect/routing, Lidar and spectroscopy, photonic computing, as well as microwave photonics.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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