Silicon 3D-integrated 2 × 2 × 106.25 Gbps parallel multimode transmitter

• DOI: 10.1364/ol.557793
• Publication Date: 2025-03-27T12:11:20Z
• Authors: Shihuan Ran; Yao Sun; Ting Miao; Bohan Chu; Yu Li; Jianping Chen; Linjie Zhou

Mode division multiplexing (MDM) has garnered significant attention for its potential to enhance communication capacity. In this paper, we present for the first time, to the best of our knowledge, a 3D-integrated parallel multimode transmitter, featuring two multimode fibers, with both TE0 and TE1 modes transmitted for data multiplexing. Each channel exhibits an electro-optic (EO) bandwidth of ∼45 GHz, enabling a total transmission of 2 × 2 × 106.25 Gbps upon four-level pulse amplitude modulation (PAM-4).