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基于Sb₂Se₃相变材料的超紧,超低损耗和宽带2 × 2非挥发性光学开关

Haotian Li, Desheng Zeng, Yihang Huang

|June 14, 2025

概括

我们开发了一种超紧的宽带非挥发性光学开关,使用波导和化 (Sb2Se3). 这种设备提供了低损耗和高性能,为先进的光子集成电路铺平了道路.

科学领域:

光子学是一个光子学.
材料科学材料科学材料科学
集成光学集成光学集成光学

背景情况:

非挥发性光学开关对于先进的光子集成电路至关重要.
现有的设备通常面临大小,损失或带宽的限制.

研究的目的:

提出和演示一个超紧的,宽带的2×2非挥发性光学交换机.
为了利用相变材料的特性,用于光学切换应用.

主要方法:

使用两个相邻的波导与低损耗抗化 (Sb2Se3) 集成.
利用Sb2Se3在其晶体和无形状态中的独特光学合特性.
制造一个尺寸大约为3.6 × 27.6 μm2.2的设备.

主要成果:

在1550 nm时实现了超低的插入损失 (0.068 dB在条形状态,0.034 dB在交叉状态) 和低的交叉声 (分别为-31.97 dB和 -29.27 dB).
证明了宽带运行,插入损失<0.17dB,交叉声响<-15dB在64nm带宽上.
通过模拟展示了对制造错误的高耐受性.

结论:

提出的基于Sb2Se3的非挥发性光学交换机提供了紧性,超低损耗和宽带操作的独特组合.
它的性能特性使其成为下一代光子集成电路的有希望的候选者.
该设备的非挥发性和稳固性表明有很大的应用潜力.

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