铌酸锂
光学
光调制器
消光比
材料科学
电光调制器
光电子学
波导管
光子集成电路
光子学
带宽(计算)
物理
相位调制
波长
电信
相位噪声
计算机科学
作者
Sean Nelan,Andrew Mercante,Cooper Hurley,Shouyuan Shi,Peng Yao,Benjamin Shopp,Dennis W. Prather
出处
期刊:Optics Express
[The Optical Society]
日期:2022-03-04
卷期号:30 (6): 9193-9193
被引量:14
摘要
A small footprint, low voltage and wide bandwidth electro-optic modulator is critical for applications ranging from optical communications to analog photonic links, and the integration of thin-film lithium niobate with photonic integrated circuit (PIC) compatible materials remains paramount. Here, a hybrid silicon nitride and lithium niobate folded electro-optic Mach Zehnder modulator (MZM) which incorporates a waveguide crossing and 3 dB multimode interference (MMI) couplers for splitting and combining light is reported. This modulator has an effective interaction region length of 10 mm and shows a DC half wave voltage of roughly 4.0 V, or a modulation efficiency (Vπ ·L) of roughly 4 V·cm. Furthermore, the device demonstrates a power extinction ratio of roughly 23 dB and shows .08 dB/GHz optical sideband power roll-off with index matching fluid up to 110 GHz, with a 3-dB bandwidth of 37.5 GHz.
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