In this work, a niobium carbide (Nb₂C) was proposed and demonstrated as an optical modulator for operation in the 1.5 and the 2.0 m wavelength region. The Nb₂C solution was first prepared using the liquid phase exfoliation technique, and then embedded into a polyvinyl alcohol (PVA) polymer to form a thin film. Based on the thermo-optic effect exhibited by the Nb₂C-PVA film, successful modulations of the 1.5 and the 2.0 m signals were observed, where the signals could be modulated up to a frequency of 5 kHz. The modulators could also be employed in an all-optical signal processing system, in which information codes from the control light could be conveyed through both signals. The integration of the Nb₂C-PVA film into the all-optical modulation system shows the material efficiency to modulate the transmission light with high stability, showing significant potential of the device in an all-optical signal processing system.

在这项工作中，碳化铌 (Nb ₂ C) 被提出并展示为在 1.5 和 2.0 中运行的光学调制器m 波长范围。Nb ₂ C 溶液首先使用液相剥离技术制备，然后嵌入到聚乙烯醇 (PVA) 聚合物中以形成薄膜。基于 Nb ₂ C-PVA 薄膜表现出的热光效应，1.5 和 2.0 的成功调制观察到 m 个信号，其中信号可以调制到 5 kHz 的频率。调制器还可以用于全光信号处理系统，其中来自控制光的信息代码可以通过两个信号传送。Nb ₂ C-PVA薄膜与全光调制系统的集成显示了材料效率以高稳定性调制传输光，显示了该器件在全光信号处理系统中的巨大潜力。