Optical Modulation Techniques: Current Status, Development and Application

Dear Colleagues,

With existing and emerging technologies increasingly demanding compact, efficient, fast, and broadband optical modulation techniques (OMs), high-performance light modulation solutions are becoming indispensable. Optical modulators or the direct modulation of light sources are key techniques in modern optical systems. Optical modulation is required in communication and information technology as well as for sensing to control intensity, phase, wavelength, or polarization of light. Modulators have been improved dramatically in recent years, with a notable increase in bandwidth from the megahertz to the multigigahertz regime.

Moreover, the design and optimization of OMs based on material and function have been developed widely, for example, optical modulators with 2D layered materials; graphene-based optical modulators; silicon optical modulators; electro-optic polymer modulators, and modulated semiconductor lasers. Additionally, optical regulators have been widely used in various fields. Therefore, this Special Issue aims to explore the current state of optical modulation devices, as well as their development and application.

Prof. Dr. Georg Bastian
Guest Editor

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