An all-optical packet switching switch based on microring resonator

Abstract

The invention discloses an all-optical packet switching switch based on micro-ring resonant cavities. A bias signal source is connected with a wavelength division multiplexer through a lithium niobate modulator 1; a packet data flow is connected with the wavelength division multiplexer through a lithium niobate modulator 2; the wavelength division multiplexer is connected with two couplers; and straight-through light is output through a port of a second coupler. A micro-ring resonant cavity 1 is coupled with two straight waveguide arms through a third coupler and a first coupler; and the light of the micro-ring resonant cavity 1 is input from a port of the first coupler, and output from another port. A micro-ring resonant cavity 2 is coupled with the two straight waveguide arms through a fourth coupler and the second coupler; and the light of the micro-ring resonant cavity 2 is input from one port of the second coupler, and output from another port. Write-in signal sources, the lithium niobate modulators, erbium-doped optical fiber amplifiers, band-pass filters and variable optical attenuators are connected in sequence; the variable optical attenuators are connected with the couplers, and light is output from the ports of the couplers; and light of each micro-ring resonant cavity is input from one port of the coupler and output from anther port.

Description

technical field [0001] The invention belongs to the technical field of optical information, and in particular relates to an all-optical packet switching switch based on a microring resonant cavity. Background technique [0002] The traditional optical system is bulky and has poor stability, which cannot meet the needs of the development of modern optical fiber communication. In order to realize the all-optical network, more and more scientific workers are committed to finding some optical devices with small size, simple structure and stable performance, and the microring resonator combines these advantages, and is one of the widely researched optical devices. . So far, the industry has developed a variety of optical devices based on microring resonators, such as all-optical switches, filters, optical delays, wavelength conversion, dispersion compensation, lasers, and so on. Light transmission in the nonlinear microring resonator has bistable characteristics, that is, one i...

AI Technical Summary

Problems solved by technology

[0002] The traditional optical system is bulky and has poor stability, which cannot meet the needs of the development of modern optical fiber communication

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