Single-input multiple-output optical switch based on nonlinear photonic lattice

Abstract

The invention provides a single-input multiple-output optical switch based on nonlinear photonic lattice, which includes a first waveguide layer, a second waveguide layer and a third waveguide layer. The first waveguide layer is arranged on the upper part of the second waveguide layer. The waveguide layer is arranged between the third waveguide layer and the first waveguide layer; the second waveguide layer includes a nonlinear waveguide, and both the first waveguide layer and the third waveguide layer include a linear waveguide; the nonlinear waveguide is a sinusoidal waveguide, linear The waveguides are all spiral waveguides; the optical switch also includes an input port and at least two output ports. The present invention can select different output ports according to actual needs, and the optical switches corresponding to each output port have different on-off thresholds, which increases flexibility in practical applications.

Description

technical field [0001] The invention belongs to the field of optical communication and optical logic calculation, and relates to an optical switch, in particular to a single-input multiple-output optical switch based on a nonlinear photon lattice. Background technique [0002] With the continuous advancement of science and technology and the continuous development and renewal of communication networks, traditional optical switches can no longer meet the needs of various application fields today. For example: mechanical optical switches are bulky, difficult to integrate, and slow in response; microelectronic optical switches have good process compatibility, but have large insertion loss, unstable switches, and response speeds of only microseconds. With the development of photonic technology and the appearance of photonic lattice with multi-directional periodic structure, it provides a new idea for optical switch technology. The control of light is realized through the photon...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the deficiencies in the prior art, the purpose of the present invention is to provide a single-input multiple-output optical switch based on nonlinear photonic lattice, to solve the problem that only single-input / single-output exists in the all-optical photonic lattice optical switch in the prior art. , which is not conducive to the flexible regulation of optical signals

Images