Presentation Information
[8p-S2-8]Ultrahigh-Speed Optical Signal Transmission with Electro-Optic Material-Integrated Optical Modulator
〇Shiyoshi Yokoyama1 (1.Kyushu Univ. IMCE)
Keywords:
electro-optic material,optical modulator,optical waveguide
The rapid growth of data traffic is driving the demand for optical communication systems with ever-higher transmission capacities. Optical modulators are key devices for realizing high-speed optical transceivers, and significant efforts have been devoted to improving their modulation efficiency, bandwidth, and integration capability. This article reviews recent progress in electro-optic (EO) material-integrated optical modulators based on polymer and ferroelectric materials. Polymer-based modulators offer low-voltage operation and excellent high-frequency performance owing to their large EO coefficients and favorable microwave–optical velocity matching. Ferroelectric materials, on the other hand, provide extremely large EO effects and have emerged as promising candidates for next-generation photonic integrated devices. Recent advances in material engineering, thin-film fabrication, and hybrid integration technologies are discussed, together with future prospects for ultrahigh-speed optical signal transmission and terabit-class optical interfaces.