All-Optical Switches for Optical Soliton Interactions in a Birefringent Fiber

Abstract

Interactions among optical solitons can be used to develop photonic information processing devices such as all-optical switches and all-optical logic gates. It is the key to achieve high-speed, high-capacity all-optical networks and optical computers, which is also important in academy. We study the properties of all-optical switches of optical solitons in birefringent fibers, based on the coupled nonlinear Schrödinger equations. It is found that under different initial conditions we can achieve all-optical switching functions. We also study the influence of different physical parameters of birefringent fibers on all-optical soliton switching. The relevant conclusions are conducive to achieving the all-optical switching function of optical solitons in birefringent fibers, providing useful guidance for widespread applications of optical soliton all-optical switches in birefringent fibers of communications.

Three-Wave Mixing of Dipole Solitons in One-Dimensional Quasi-Phase-Matched Nonlinear Crystals

“…[42,43] They can create ideal conditions for optical soliton transport due to their unique nonlinear effect and have been realized for a variety of solitons in some studies. [44,45] However, although 𝜒 (2) nonlinear optical crystals can support transmission of solitons, they only support optical solitons in the fundamental state in one and two dimensions (1D and 2D), [46,47] and dipole solitons are not easily stabilized, [48,49] which features a spontaneous separation between two peaks. [50] Due to the different refractive indices of input and output waves with different wavelengths in a 𝜒 (2) nonlinear photonic crystal, which results in different wave vectors, phase matching is impossible under natural conditions.…”

Three-Soliton Interactions and the Implementation of Their All-Optical Switching Function

“…With the gradual rise and rapid development of all-optical networks, all-optical switches have become the foundation of optical transmission and switching. [1][2][3][4] As a fundamental core component of optical communication systems, all-optical switches can directly convert information between optical signals and have advantages such as low power consumption and large transmission bandwidth. [5][6][7] As is well known, there is an electronic bit rate bottleneck in the optoelectronic hybrid technology platform of electronic control optical switches, and its energy consumption gradually increases.…”

“…Based on the above situation, we will study the alloptical switches under the interactions of three optical solitons. The coupled nonlinear Schrödinger (CNLS) equations used to describe the transmission of three optical solitons read [1] 𝑖𝑞…”

“…In optical communication systems, not only two solitons are transmitted, but more often, multiple optical solitons are transmitted simultaneously, which has not been reported before for Eq. (1).…”

“…[19] Through the constraint conditions 𝛾(𝑡) + 𝛾s(𝑡) = 0 and 𝛽(𝑡)𝑘3(𝑡) = 𝛾(𝑡)𝑘2(𝑡), the bilinear forms of Eq. ( 1) can be written as [1] [︂…”