[22a-11E-1~9] CS.5 Code-sharing Session of 3.10 & 3.14

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[22a-11E-6] Sub-1-V 59-fJ/bit Si Photonic Crystal Slow-Light Optical Modulator

〇(D)Keisuke Kawahara¹, Tai Tsuchizawa², Noritsugu Yamamoto², Yuriko Maegami², Koji Yamada², Toshihiko Baba¹ (1.Yokohama National Univ., 2.AIST)

Keywords:

optical modulator,photonic crystal,slow light

Highly efficient optical interconnection is required to reduce power consumption in data centers. Si photonic crystal waveguide (PCW) optical modulators can reduce VπL to about 1/10 of ribbed devices due to the slow light effect and achieve compact size and low capacitance. In this study, we propose a distributed electrode that achieves high impedance and strict EO phase matching. We demonstrated high efficiency modulation of 59 fJ/bit with sub-1-V driving voltage.