Abstract

In this paper, a compact optical high-speed 1-bit comparator is proposed based on photonic crystals. In this structure, the nonlinear rods are used at the cross-connecting point of two optical waveguides. The optical transmission and reflection from these rods depend on the amount of the optical intensity. In response to the different states of the input ports, different values of the optical power reach these rods and the interference patterns make the correct function of the output ports. The refractive index and the Kerr coefficient of nonlinear rods are ${1.4}\;{{\rm m}^2}/{\rm W}$ and ${{10}^{-14}}\;{{\rm m}^2}/{\rm W}$, respectively. The footprint of the structure is ${55}\;{{\unicode{x00B5}{\rm m}}^2}$, which is much smaller than the previous works. Besides, the lower delay time is the other advantage of this work compared with the previous works. Based on the simulation results, the proposed structure can be used in integrated optical circuits.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Application of photonic-crystal-based nonlinear ring resonators for realizing an all-optical comparator

Lian Zhu, Farhad Mehdizadeh, and Reza Talebzadeh
Appl. Opt. 58(30) 8316-8321 (2019)

High performance of an all-optical two-bit analog-to-digital converter based on Kerr effect nonlinear nanocavities

Mojtaba Hosseinzadeh Sani, Saeed Khosroabadi, and Mahshid Nasserian
Appl. Opt. 59(4) 1049-1057 (2020)

High-extinction ratio and ultra-compact two-bit comparators based on graphene-plasmonic waveguides

Mir Hamid Rezaei and Abbas Zarifkar
Appl. Opt. 58(36) 9829-9838 (2019)

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 (6)

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

Tables (3)

You do not have subscription access to this journal. Article tables 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

Equations (2)

You do not have subscription access to this journal. Equations 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