Design and electro-optical co-optimization of high-speed travelling wave silicon-organic hybrid modulators

Abstract

Silicon-organic hybrid (SOH) modulators are promising as they have large bandwidth, high modulation efficiency and low optical loss. In this paper, we present the optical and electrical design and simulation of a high-speed travelling wave SOH modulator with multiple interplay parameters. We also implement the electro-optical co-optimization to delve into the influence of the key design parameters and propose the design guideline. The results demonstrate a modulator with 3 dB bandwidth of 72 GHz, modulation efficiency of 1.26 Vmm and optical loss less than 1 dB.