We show the formation of slow optical solitons in the asymmetric coupled double quantumwells (CQW) via a two-photon Raman resonance. With the consideration of real parameters in AlGaAs-based CQW, we indicate the possibility to have cancellation of the linear absorption and giant Kerr nonlinearities. With the controllable balance between dispersion and nonlinear effects in these solid-state base...

The dispersive properties of silicon-on-insulator (SOI) waveguides are studied by using the effective-index method. Extensive calculations indicate that an SOI waveguide can be designed to have its zero-dispersion wavelength near 1.5 microm with reasonable device dimensions. Numerical simulations show that soliton-like pulse propagation is achievable in such a waveguide in the spectral region a...

We experimentally demonstrate a new scheme for generating amplitude-squeezed solitons in an asymmetric fiber Sagnac loop. We measure by direct detection what is to our knowledge a record reduction of 5.7+/-0.1 dB (73%) and, with corrections for linear losses, 6.2+/-0.1 dB (76%) in the photon-number fluctuations below the shot-noise level. The same scheme is also shown to generate significant cl...

The generation of stable spatial optical solitons is of great interest due to the variety of the solitons’ interactions, their particlelike characteristics, and their potential technological applications [1]. Spatial soliton formation requires a balance between the beam’s tendencies to self-focus and diffract. In bulk [three-dimensional (3D)] media, such propagation is unstable, unless the focu...

In this paper we numerically investigate the effect of relative phase on thestability of temporal bright solitons in a Nano PT- Symmetric nonlinear directionalcoupler (NLDC) by considering gain in bar and loss in cross. We also study the effect ofrelative phase on the output perturbed bright solitons energies, in the range of   0 to 180 . By using perturbation theory three eigenfunctions an...

We use a semiclassical version of the Nexus paradigm quantum gravity in which vacuum at large scales is dominated by second quantized electromagnetic field to demonstrate that virtual photon can affect geometric evolution Einstein manifolds or Ricci solitons. This phenomenon offers cogent explanation origins astrophysical jets, cosmological constant, and means detecting galactic dark matter.

A quantum theory of self induced transparency (SIT) solitons is developed with the quantum effects of ensemble atoms taken into account. For the first time one is able to accurately calculate the detectable squeezing ratio for non-optimum homodyne local oscillators. Suggestions for experimental SIT soliton squeezing detection and intersoliton correlation generation are given. ©2007 Optical Soci...

Exciton–polariton solitons are nonlinear quasiparticles composed of exciton–photon bound states due to the interaction light with matter. In semiconductor micro-cavity systems, such as micro and nanowires, polaritons characterized by a negative mass which, combined repulsive exciton–exciton interaction, leads generation bright polariton solitons. this work, we investigate dynamics exciton–polar...

We describe applications of solitons and soliton collisions to the transport, transfer, and beam-splitting of qubits carried by optical photons. The transport and transfer realize the “flying qubits” necessary for quantum information processing, and the beam-splitting leads, in theory, to an implementation of quantum computing using linear optics. These proposed applications are embedded in a u...