Author(s): Huang, XR (Huang, Xingrui); Liu, Y (Liu, Yang); Guan, H (Guan, Huan); Yu, ZG (Yu, Zhiguo); Tan, MQ (Tan, Manqing); Li, ZY (Li, Zhiyong)

Source: IEEE PHOTONICS JOURNAL Volume: 13 Issue: 6 Article Number: 6600305 DOI: 10.1109/JPHOT.2021.3120786 Published: DEC 2021

Abstract: In this work, we design, model, and characterize the Bragg grating modulator (BGM) on silicon-rich nitride and thin-film lithium niobate (SRN-TFLN) platform. In particular, the slow-light effect on the electro-optical modulation response is modeled and experimentally validated. The presented modulator shows a 3-dB electro-optical (E-O) bandwidth beyond 40 GHz, which agrees well with the simulation results. High-speed modulation up to 60 Gbps and 70 Gbps are experimentally obtained with extinction ratio (ER) of 4.7 dB and 2.7 dB, respectively. A measured modulation efficiency of 2.47 pm/V is also achieved. With optimized slow-light effect and proper design, the proposed BGM has great potential in high-speed data transmission.

Accession Number: WOS:000749925400002

ISSN: 1943-0655

eISSN: 1943-0647

Full Text: https://ieeexplore.ieee.org/document/9580713