铌酸锂
光学
材料科学
薄膜
相(物质)
锂(药物)
折射率
光电子学
物理
量子力学
医学
内分泌学
纳米技术
作者
Siyuan Zhou,Guanyu Chen,Tao Zhu,Hua Yu
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2025-06-10
卷期号:50 (14): 4522-4522
被引量:1
摘要
We propose and demonstrate a 2 × 2 multimode interference (MMI) based 90° electro-optic (EO) hybrid on a thin-film lithium niobate (TFLN) platform. The sources of phase error and corresponding compensation strategies for the designed EO hybrid are theoretically analyzed. By integrating a TFLN phase modulator, ultra-low phase error is achieved. Experimental results show that the fabricated device maintains a common-mode rejection ratio (CMRR) exceeding 20 dB over the 1530–1580 nm wavelength range. Moreover, under a driving voltage below 3 V, the device exhibits a phase error of less than 1° when operated with phase shift modulation.
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