Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Technical Physics Letters

Transmission function of a directional coupler with a saturable nonlinearity

P. I. Khadzhi, O. K. Orlov

Published Sep 1, 1999• 0 citations
Publisher

Abstract

It is shown that when saturation is taken into account, the transmission function of a directional coupler is more complicated than the Kerr function. Specifically, transmission characteristics with two critical points of self-switching exist.
DOI
10.1134/1.1262596

Related papers

Numerical analysis of nonlinear coherent couplers exhibiting saturable index changes

Lars Thylen, Ewan M. Wright, G. I. Stegeman

Nonlinear directional coherent couplers are analyzed by using the beam-propagation method. The nonlinear media are modeled by using a saturable two-level system response. Coupler structures and excitation conditions to which the coupled-mode approach is not readily applicable are treated.

Journal of the Optical Society of America B•Feb 1, 1988•21 citations

Parameter trade-offs in nonlinear directional couplers: Two level saturable nonlinear media

G. I. Stegeman, Emanuele Caglioti, S. Trillo +1 more

Optics Communications•Sep 1, 1987•43 citations

Optical bistability in a nonlinear directional coupler

Carsten Thirstrup

In the nonlinear directional coupler, the optical field and the nonlinear material usually interact in a spatially and temporally local fashion and the device exhibits a nonlinear transmission characteristics, but it is not bistable. In this paper, it is shown theoretically that optical bistability in the input optical power is possible for the nonlinear directional coupler if the local phase change of the optical mode propagating through tile coupler is influenced by the excitation over the whole coupler. This condition can be satisfied in a coupler based on biased-pin-diodes comprising coupled asymmetric quantum wells in the i-region, Calculations show that in this configuration, the nonlinear directional coupler can exhibit sharp switching characteristics, low switching optical powers, optical bistability or bifurcation.

IEEE Journal of Quantum Electronics•Jan 1, 1995•17 citations

Quantum dynamics of a four-channel Kerr nonlinear directional coupler

Rafael Julius, Abdel-Baset M.A. Ibrahim, Mohd Kamil Abd-Rahman +1 more

Optical Review•Aug 1, 2018•15 citations

Characteristics of the optical resonator composed of the nonlinear directional coupler

Kiyoshi Kishioka

This paper describes a simple method of analysis of an optical resonator composed of a nonlinear directional coupler. Assuming the coupler is made in semiconductor-doped glass by the K+-ion diffused technique, the transmission and reflection characteristics are calculated and demonstrated. The parameter dependence of the bistability appearing in the transmitted and reflected light is also presented. © 2004 Wiley Periodicals, Inc. Electr Eng Jpn, 150(3): 1–10, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20036

Electrical Engineering in Japan•Jan 1, 2004•1 citation

Quantum theory of two-mode nonlinear directional couplers

Anthony Chefles, Stephen Mark Barnett

The quantum two-mode nonlinear directional coupler exhibits intriguing variations on the self-trapping effect seen in the corresponding classical model. We study and compare the quantum counterparts of this phenomenon for number and coherent state inputs, and discuss their relation to the nature of the eigenvalues and eigenvectors of the Hamiltonian.

Journal of Modern Optics•Apr 1, 1996•59 citations
In the nonlinear directional coupler, the optical field and the nonlinear material usually interact in a spatially and temporally local fashion and the device exhibits a nonlinear transmission characteristics, but it is not bistable. In this paper, it is shown theoretically that optical bistability in the input optical power is possible for the nonlinear directional coupler if the local phase change of the optical mode propagating through tile coupler is influenced by the excitation over the whole coupler. This condition can be satisfied in a coupler based on biased-pin-diodes comprising coupled asymmetric quantum wells in the i-region, Calculations show that in this configuration, the nonlinear directional coupler can exhibit sharp switching characteristics, low switching optical powers, optical bistability or bifurcation.
This paper describes a simple method of analysis of an optical resonator composed of a nonlinear directional coupler. Assuming the coupler is made in semiconductor-doped glass by the K+-ion diffused technique, the transmission and reflection characteristics are calculated and demonstrated. The parameter dependence of the bistability appearing in the transmitted and reflected light is also presented. © 2004 Wiley Periodicals, Inc. Electr Eng Jpn, 150(3): 1–10, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/eej.20036