[18a-WL2_401-1~11] 3.13 Silicon photonics, Photonics-electronics convergence, Optical control

10:45 AM - 11:00 AM JST(1:45 AM - 2:00 AM UTC)

[18a-WL2_401-7] Evaluation of Dielectric Function of PLZT and Design of Optical Modulators for Broadband Operation

〇Shuhei Nara¹, Toshimitsu Obonai¹, Daichi Nakanishi¹, Kenta Rokumyo¹, Yuina Kokai¹, Suguru Akiyama¹, Takahito Fukushima¹, Shiyoshi Yokoyama², Taiji Kondo¹ (1.Dexerials, 2.Kyusyu Univ., IMCE)

Keywords:

optical modulator,optical transmitter,ferroelectric

Although PLZT optical modulators have been demonstrated to operate at 200 GBd, the physical properties of PLZT at high frequencies and the details of the transmission line design based on them have not been clarified. In this study, we have clarified the dielectric function of PLZT, which is necessary for high-frequency design, and we report the design of a PLZT optical modulator with a new structure that can achieve broadband EO response characteristics based on transmission line theory.