Abstract

Electro-optic (EO) modulators, which convert signals from the electrical to optical domain plays a key role in modern optical communication systems. Lithium niobate on insulator (LNOI) technology has emerged as a competitive solution to realize high-performance integrated EO modulators. In this Letter, we design and experimentally demonstrate a Mach–Zehnder interferometer-based modulator on a silicon nitride loaded LNOI platform, which not only takes full advantage of the excellent EO effect of ${\rm{LiNb}}{{\rm{O}}_3}$, but also avoids the direct etching of ${\rm{LiNb}}{{\rm{O}}_3}$ thin film. The measured half-wave voltage length product of the fabricated modulator is 2.24 V·cm, and the extinction ratio is ${\sim}{{20}}\;{\rm{dB}}$. Moreover, the 3 dB EO bandwidth is ${\sim}{{30}}\;{\rm{GHz}}$, while the modulated data rate for on–off key signals can reach up to 80 Gbps.

© 2021 Optica Publishing Group

Full Article  |  PDF Article
More Like This
40 GHz high-efficiency Michelson interferometer modulator on a silicon-rich nitride and thin-film lithium niobate hybrid platform

Xingrui Huang, Yang Liu, Zezheng Li, Huan Guan, Qingquan Wei, Manqing Tan, and Zhiyong Li
Opt. Lett. 46(12) 2811-2814 (2021)

Subvolt electro-optical modulator on thin-film lithium niobate and silicon nitride hybrid platform

Abu Naim R. Ahmed, Sean Nelan, Shouyuan Shi, Peng Yao, Andrew Mercante, and Dennis W. Prather
Opt. Lett. 45(5) 1112-1115 (2020)

On-chip four-mode (de-)multiplexer on thin film lithium niobate–silicon rich nitride hybrid platform

Yang Liu, Xingrui Huang, Zezheng Li, Huan Guan, Zhiguo Yu, Qingquan Wei, Zhongchao Fan, Weihua Han, and Zhiyong Li
Opt. Lett. 46(13) 3179-3182 (2021)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Data availability

Data underlying the results presented in this Letter are not publicly available at this time but may be obtained from the authors upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (6)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Metrics