It is shown that an intense photon pulse interacting nonlinearly with sound waves in a photon gas is subjected to modulational and filamentational instabilities. Starting from a new set of coupled equations governing nonlinear photon-photon interactions, we derive a dispersion relation which depicts the temporal and spatial amplification rates of the modulational and filamentational instabiliti...

TABLE 1. Experimental and theoretical results for noise reduction in photon-number or intensity-1/f noise of spectrally filtered solitons. The pulse widths are FWHM values, C is the chirp parameter as defined in G.P. Agrawal: ”Nonlinear Fiber Optics” (Academic Press 1995). The photon-number noise reduction values in parentheses are: * extrapolated for 100 % detection efficiency (experiment) ** ...

Solitons are nonlinear waves present in diverse physical systems including plasmas, water surfaces and optics. In silicon, the presence of two photon absorption and accompanying free carriers strongly perturb the canonical dynamics of optical solitons. Here we report the first experimental demonstration of soliton-effect pulse compression of picosecond pulses in silicon, despite two photon abso...

Quantum photon-number fluctuation and correlation of bound soliton pairs in mode-locked fiber lasers are studied on the basis of the complex Ginzburg-Landau equation model. We find that, depending on their phase difference, the total photon-number noise of the bound soliton pair can be larger or smaller than that of a single soliton, and the two solitons in the soliton pair have a corresponding...

: Optical separate spatial dark and bright soliton pairs in steady-state case in one dimension, for a series circuit consisting of two-photon photorefractive (PR) crystal are investigated. Each crystal can be supported the spatial soliton, and at least one must be photovoltaic. The two solitons are known collectively as separate spatial soliton pairs with dark–dark, bright–dark and bright–brigh...

The quantum fluctuations of two out-of-phase time-separated temporal solitons are calculated. Almost perfect positive correlation between their photon-number fluctuations can be achieved after propgating a certain distance and with suitable initial separation. OCIS codes: (270.5530, 270.6570) Pulse propagation and solitons, Squeezed states. After the first realization of quantum teleportation w...

-Spatial dark solitons are known to be stable nonlinear localized waves in self-defocusing media. We demonstrate how to analyse the dynamics of dark solitons in the presence of small perturbations, and we consider the effect of two-photon absorption on dark solitons as a particular example. We also predict a new type of dark solitons of circular symmetry, ring dark solitons, which are stable ag...

We show the possibility to generate bright and dark optical solitons based on bound-to-bound intersubband transitions in an asymmetric three-coupled quantum well structure. By presenting the concept of detuning management, we show that the bright optical soliton can evolve into a dark one by adiabatically changing the corresponding oneand two-photon detunings. With adjustable carrier frequencie...

Wave-like dark matter made of spin-1 particles (dark photons) is expected to form ground state clumps called "vector solitons", which can have different polarizations. In this work, we consider the interaction photons with photons, expressed as dimension-6 operators, and study electromagnetic radiation that arises from an isolated vector soliton due parametric resonant amplification ambient fie...