Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 25,
  • Issue 7,
  • pp. 1805-1810
  • (2007)

High-Speed X-Cut Thin-Sheet LiNbO3 Optical Modulator With Folded Structure

Not Accessible

Your library or personal account may give you access

Abstract

We propose a small-footprint X-cut thin-sheet LiNbO<sub>3</sub> optical modulator with high-speed and low-driving-voltage characteristics. Since an optical waveguide is folded by a mirror placed at one edge of the modulation chip, the chip can be shortened by about half. In addition, a wide modulation bandwidth can be achieved, because the path-length difference between the optical waveguide and the coplanar-waveguide (CPW) electrode is decreased to as short as possible by placing the CPW electrode as far as possible along the optical waveguide in the folded portion, and the microwave effective index is set to realize effective velocity matching between the lightwave and the microwave. A small footprint of 1.78 × 29 mm, a low half-wave voltage of 2.0 V at dc, and a 3-dBe modulation bandwidth of 20 GHz were obtained.

© 2007 IEEE

PDF Article
More Like This
Effects of parasitic modes in high-speed LiNbO3 optical modulators

Woo Kyung Kim, Woo-Seok Yang, and Han-Young Lee
Opt. Express 12(12) 2568-2573 (2004)

High-speed compact folded Michelson interferometer modulator

Ruogu Song, Jialiang Sun, Jinyu Wang, Xinyu Li, Yufei Liu, Wencheng Yue, Yan Cai, Shuxiao Wang, and Mingbin Yu
Opt. Express 30(13) 23704-23715 (2022)

Sub-terahertz bandwidth capactively-loaded thin-film lithium niobate electro-optic modulators based on an undercut structure

Xuecheng Liu, Bing Xiong, Changzheng Sun, Jian Wang, Zhibiao Hao, Lai Wang, Yanjun Han, Hongtao Li, and Yi Luo
Opt. Express 29(25) 41798-41807 (2021)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved