Open AccessTime-reversed and reciprocal second-harmonic generation with pump depletion
Author(s) -
Ronger Lu,
Feng Xia,
Ruizhi Zhao,
Xuhao Hong,
Chao Zhang,
Yiqiang Qin,
Yanyan Zhu
Publication year - 2017
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.25.025646
Subject(s) - nonlinear system , optics , nonlinear optics , reciprocal , physics , second harmonic generation , position (finance) , harmonic , sum frequency generation , quantum mechanics , laser , linguistics , philosophy , finance , economics
The time-reversed second-harmonic generation in one-dimensional nonlinear photonic crystals has been theoretically studied without the undepleted pump approximation. A simple criterion has been deduced which determines the energy flow. Based on it, two kinds of structures with different symmetries are presented to realize the nonlinear time reversal effect. A completely reciprocal nonlinear response is also found in the same process. Furthermore, a multi-section-cascaded structure is proposed to realize the nonlinear time reversal at any given position.