AI 中文总结
针对磷酸钛氧铷在集成或导波调制器应用受限问题，提出介质加载导波调制器，利用未蚀刻块状RTP晶体上的氮化硅条形成近表面光学模式，分析了全矢量光学模式等性能。
AI 中文摘要
磷酸钛氧铷（RTP）因其具有线性电光响应、低介电常数、高电阻率、可忽略的压电振铃和高光学损伤耐受性，被广泛用于块状普克尔盒。但由于缺乏成熟的薄膜RTP平台，其在集成或导波调制器中的应用受到限制。本文提出一种介质加载导波调制器，未蚀刻的块状RTP晶体上的氮化硅条形成与侧电极场重叠的近表面光学模式。分析聚焦于全矢量光学模式、GSG静电和射频响应、张量感知电光耦合以及1064nm的器件级性能。
英文摘要
Rubidium titanyl phosphate (RTP) is widely used in bulk Pockels cells because it combines a useful linear electro-optic response with low dielectric permittivity, high electrical resistivity, negligible piezoelectric ringing, and high optical-damage tolerance. Its use in integrated or guided-wave modulators has been limited by the absence of a mature thin-film RTP platform. Here we propose a dielectric-loaded guided-wave modulator in which a silicon nitride strip on an unetched bulk RTP crystal forms a near-surface optical mode that overlaps with side-electrode fields. The analysis focuses on full-vector optical modes, GSG electrostatic and RF response, tensor-aware electro-optic coupling, and device-level performance at 1064~nm.
