Enhancement of the pockels effect in photonic crystal modulators through slow light

Peter Girouard, Zhifu Liu*, Pice Chen, Young Kyu Jeong, Yongming Tu, Seng Tiong Ho, Bruce W. Wessels

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


We report a photonic crystal (PhC) optical modulator operating in the optical C band (1530-1565 nm) using barium titanate epitaxial thin films as the electro-optic (EO) medium. The PhC has hexagonal lattice symmetry and an extinction ratio of 9 dB. Due to the slow light enhancement of the EO coefficient near the PhC band edge, the driving electrode can be as short as a one millimeter. We report for the first time, to the best of our knowledge, at microwave frequencies from 10 to 45 GHz the effective EO coefficient and its enhancement through slow light effects. A monotonic increase of the effective EO coefficient from 60 to 110 pm/V across the stopband edge is obtained, resulting in an enhancement as high as 1.8.

Original languageEnglish (US)
Pages (from-to)5531-5534
Number of pages4
JournalOptics Letters
Issue number23
StatePublished - Dec 1 2016

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Enhancement of the pockels effect in photonic crystal modulators through slow light'. Together they form a unique fingerprint.

Cite this