Abstract

We numerically study the diffraction properties of a parity-time (PT) symmetric transmission grating, which operates through a limited number of guiding modes. The interferometric operation is altered by the introduction of balanced gain and loss leading, for example, to efficient switching around the spontaneous symmetry breaking point. Furthermore, we examine the influence of the longitudinal reflections, which are not common in previous PT structures. In addition, we separately tailor the periodicities of gain and loss, so that the device remains PT symmetric. However, this gives a new way to control the mode merging phenomenon, as we obtain interactions between previously distinct modes.

© 2015 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Analysis of unidirectional non-paraxial invisibility of purely reflective PT-symmetric volume gratings

Mykola Kulishov, H.F. Jones, and Bernard Kress
Opt. Express 23(14) 18694-18711 (2015)

Analysis of PT -symmetric volume gratings beyond the paraxial approximation

Mykola Kulishov, H. F. Jones, and Bernard Kress
Opt. Express 23(7) 9347-9362 (2015)

Ultrafast optical switching using parity–time symmetric Bragg gratings

Sendy Phang, Ana Vukovic, Hadi Susanto, Trevor M. Benson, and Phillip Sewell
J. Opt. Soc. Am. B 30(11) 2984-2991 (2013)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (10)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription