Document type
Conference papers
Document subtype
Extended abstract/Short paper
Title
Optimal Switching Operation of PT-Symmetric Dimmers with Nonuniform Gain/Loss and Coupling Profiles
Participants in the publication
A. Lupu (Author)
V. V. Konotop (Author)
Dep. Física
CFTC
H. Benisty (Author)
Summary
We assess through a variational optimization approach the optimal gain-loss profile for a non-uniform PT-symmetric coupler allowing the realization of a binary transfer function and minimizing the deviation of the total traveling light intensity as compared to that holding in a conservative system. We bring evidence that the gain-loss profile fulfilling this requirement corresponds to a non-conventional situation when light intensity is conserved in every point along the propagation distance in the PT-symmetric system. Furthermore, the optimal profile thus found corresponds to a practically important case of optical switching operation achieved with a minimal amount of amplification level. We show that switching architectures using such type of gain-loss profiles are very substantially advantageous as compared to conventional uniform PT-symmetric couplers. Furthermore, this type of optimal profile turns out to be robust with respect to fabrication imperfections. This opens new prospects for functional applications of PT-symmetric devices in photonics.
Editor(s)
Jaworski, M; Marciniak, M
Event
20TH ANNIVERSARY INTERNATIONAL CONFERENCE ON TRANSPARENT OPTICAL NETWORKS (ICTON)
Publication Identifiers
Publisher
IEEE, 345 E 47TH ST, NEW YORK, NY 10017 USA
Collection
International Conference on Transparent Optical Networks-ICTON
Document Identifiers
ISBN - 978-1-5386-6605-0