相关实验视频
Updated: Jun 6, 2025

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Fabrication of Surface Acoustic Wave Devices on Lithium Niobate
Published on: June 18, 2020
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概括
我们开发了一种可调节的双重功能的波长过器,使用绝缘体上的酸 (LNOI) 和聚合物波导. 这种电光 (EO) 和热光 (TO) 设备为光通信提供带排斥和带通波.
科学领域:
- 光子学和光学工程 光子学和光学工程
- 材料科学用于集成光学.
- 基于波导的光学设备
背景情况:
- 长周期波导网格 (LPWGs) 对于光学过至关重要.
- 绝缘体上的酸 (LNOI) 为集成光子学提供了出色的电光学 (EO) 性能.
- 在单个设备中实现双功能 (带排斥/带通) 过是具有挑战性的.
研究的目的:
- 提出并实验证明一种具有双功能的可调节波长过器.
- 为了利用LNOI和聚合物波导来实现高效的模式合和过.
- 为了研究设备的电光 (EO) 和热光 (TO) 调特性.
主要方法:
- 在LNOI肋波导上制造长周期波导网格 (LPWG).
- 与通道形的聚合物覆盖波导集成,以实现双重功能过.
- 对不同偏振的带排斥和带通性能,对比度和带宽的实验性表征.
- 测量电光 (EO) 和热光 (TO) 调整效率.
主要成果:
- 制造过器实现了高带排斥对比度 (18.1dB/8.2dB) 和带通对比度 (15.7dB/17.4dB) 的z/x偏光.
- 观察到一个狭窄的3dB带宽2.5nm/2.3nm.
- 证明了显著的EO调节效率 (∼32 pm/V) 和TO调节效率 (0.465 nm/°C).
结论:
- 拟议的基于LNOI的可调节过器成功地集成了双功能的带排斥和带通过.
- 该设备表现出卓越的性能指标和高效的可调性通过EO和TO效果.
- 潜在的应用包括波长分割复杂化,温度传感和光学信息处理.
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