Open AccessCascaded sum-frequency generation and electro-optic polarization coupling in the PPLNOI ridge waveguide
Author(s) -
Dan Wang,
Tao Ding,
Yuanlin Zheng,
Xianfeng Chen
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.015283
Subject(s) - lithium niobate , optics , polarization (electrochemistry) , waveguide , electric field , materials science , insulator (electricity) , nonlinear optics , energy conversion efficiency , voltage , optoelectronics , physics , laser , chemistry , quantum mechanics
Quasi-phase matched sum-frequency generation (SFG) and electro-optic (EO) polarization coupling has been realized simultaneously in a periodically poled lithium niobate on insulator (PPLNOI) ridge waveguide. Therefore, utilizing the cascading process, the intensity of sum-frequency conversion can be modulated by applying a transverse electric field. The driving voltage is reduced by using the ridge waveguide structure, and also the frequency conversion efficiency is enhanced. This scheme is proposed to control nonlinear frequency conversion by electric field applying on the lithium niobate on insulator (LNOI) platform. The integration and fast-speed modulation of the configuration may find applications in nonlinear optical processing and communication.