High-extinction electro-optic modulation on lithium niobate thin film

Mingwei Jin, Jia Yang Chen, Yong Meng Sua, Yu Ping Huang

Research output: Contribution to journalArticlepeer-review

59 Scopus citations

Abstract

Integrated nanophotonics using lithium-niobate-on-insulator promises much-awaited solutions for scalable photonics techniques. One of its core functions is electro-optic modulation, which currently suffers limited extinction (<30 dB) due to inevitable fabrication errors. We exploit a cascaded Mach–Zehnder interferometry design to offset those errors, demonstrating up to 53 dB modulation extinction for a wide range of wavelengths between 1500 nm and 1600 nm. Together, its favorable features of chip integration, high extinction, good stability, and being broadband may prove valuable in a plethora of flourishing photonics applications.

Original languageEnglish
Pages (from-to)1265-1268
Number of pages4
JournalOptics Letters
Volume44
Issue number5
DOIs
StatePublished - 1 Mar 2019

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