Roles of temperature, materials, and domain inversion in high-performance, low-bias-drift thin film lithium niobate blue light modulators

被引：5

作者：

Celik, Oguz Tolga ^{[1
]}

Ammar, Nancy Yousry ^{[1
]}

Park, Taewon ^{[1
]}

Stokowski, Hubert S. ^{[1
]}

Multani, Kevin K. S. ^{[1
]}

Hwang, Alexander Y. ^{[1
]}

Gyger, Samuel ^{[1
]}

Guo, Yudan ^{[1
]}

Fejer, Martin M. ^{[1
]}

Safavi-Naeini, Amir H. ^{[1
]}

机构：

[1] Stanford Univ, Ginzton Lab, 348 Via Pueblo Mall, Stanford, CA 94305 USA

来源：

OPTICS EXPRESS | 2024年 / 32卷 / 21期

基金：

美国国家科学基金会;

关键词：

CHARGE-TRANSPORT PROCESSES; DC DRIFT; PHOTOREFRACTIVE CRYSTALS; 2ND-HARMONIC GENERATION; PHOTONICS;

D O I：

10.1364/OE.538150

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a thin film lithium niobate electro-optic modulator operating at 456 nm with an RF voltage-length product of 0.38 V-cm and a bandwidth of 6.9 GHz. We test the dielectric relaxation of the modulator with sweeps of temperature and optical input power, and compare equivalent modulators with electrode materials of Cr-Au, Ti-Au and Al in terms of bias stability and current-voltage characteristics. We demonstrate bias stability over at least 8 hours with Al devices, and show relationships between drift, I-V characteristics and ferroelectric domain switching. (c) 2024 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

收藏

页码：36160 / 36170

页数：11

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