双折射
材料科学
调幅
振幅
光学
光电子学
波长
调制(音乐)
消光比
液晶
频率调制
电信
物理
计算机科学
带宽(计算)
声学
作者
Milica Notaros,Andres Garcia Coleto,Manan Raval,Jelena Notaroš
出处
期刊:Optics Letters
[The Optical Society]
日期:2024-02-13
卷期号:49 (4): 1041-1041
被引量:1
摘要
In this Letter, we propose and experimentally demonstrate the first, to our knowledge, integrated liquid-crystal-based (LC-based) variable-tap devices for visible-light amplitude modulation. These devices leverage the birefringence of LC medium to actively tune the coupling coefficient between two waveguides. First, we develop the device structure, theory of operation, and design procedure. Next, we summarize the fabrication and LC packaging procedure for these devices. Finally, we experimentally demonstrate amplitude modulation with 15.4-dB tap-port extinction within ±3.1 V for a 14-µm-long device at a 637-nm operating wavelength. These small-form-factor variable-tap devices provide a compact and low-power solution to integrated visible-light amplitude modulation and will enable future high-density integrated visible-light systems.
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