[16a-421-1~11] 3.16 Optics and Photonics English Session

▲ [16a-421-8] 130 GHz ultra-broadband hybrid polymer/sol-gel waveguide Mach-Zhender modulators

〇Yasufumi Enami¹, Atsusi Seki², Shin Masuda², Jingdong Luo³, Alex Jen³ (1.Kochi Univ Tech, 2.Advantest Lab, Japan, 3.Univ Washington, USA)

Keywords:electro-optic polymers, optical modulators, ultra-broadband modulation

The electrical RF transmission S₂₁ for Mach-Zehnder optical modulators based on a hybrid electro-optic polymer/sol-gel silica waveguide was demonstrated at a modulation frequency of up to 110 GHz (limit of our equipments) and then extrapolated to a 6 dB bandwidth of 130 GHz. The half-wave voltage and electrode length product corresponded to 4.15 Vcm (a single driving), which corresponds to 2.08 Vcm for a dual driven modulation. An in-device electro-optic coefficient, r₃₃ of 140 pm/V at a wavelength of 1.55 mm was obtained for the ultra-broadband MZ modulators.