Short Optical Pulse Switching in Three-core Nonlinear Fiber Couplers

Nonlinear dual-core photonic crystal fiber couplers.

We study nonlinear modes of dual-core photonic crystal fiber couplers made of a material with the focusing Kerr nonlinearity. We find numerically the profiles of symmetric, antisymmetric, and asymmetric nonlinear modes and analyze all-optical switching generated by the instability of the symmetric mode. We also describe elliptic spatial solitons controlled by the waveguide boundaries.

Analysis of Ultra-short Pulse Propagation in Nonlinear Optical Fiber

Ultra-short pulse is a promising technology for achieving ultra-high data rate transmission which is required to follow the increased demand of data transport over an optical communication system. Therefore, the propagation of such type of pulses and the effects that it may suffer during its transmission through an optical waveguide have received a great deal of attention in the recent years. O...

Soliton controlling, switching, and splitting in nonlinear fused-fiber couplers

We propose an exactly solvable model of soliton-based pulse control that describes the physically important situation when the soliton period is much longer than the length of the coupling region in a nonlinear fiber coupler. This case can occur, e.g., in fused-fiber couplers. We demonstrate that the problem of soliton interaction and switching in such a coupler can be reduced to a linear relat...

Pulse Switching in Nonlinear Fiber Bragg Gratings

The influence of the Kerr-like nonlinearity in the switching characteristics of fiber Bragg gratings is studied. Two types of apodization profiles are considered: uniform and raisedcosine apodized gratings. The influence of the bit-rate and the wavelength detuning of the incident pulses in the nonlinear response of the grating is analyzed. The deterioration in the pulses caused by the nonlinear...

All-optical switching in optically induced nonlinear waveguide couplers