A 4×4 non-blocking wavelength selective router based on series double-ring resonators

Abstract

The invention discloses a 4×4 non-blocking wavelength selection router based on series double-ring resonators, which includes four sets of series double-ring resonators and four cross junctions; the four sets of series double-ring resonators are connected to each other through waveguides, so that the The wavelength selection router has only four input ports and four output ports for easy cascade expansion. Each series double-ring resonator is composed of two straight waveguides up and down and two series microrings between the two straight waveguides; the resonant wavelength of each series double-ring resonator is controlled by the radius of the microring; when the optical signal passes through the straight waveguide When the dual-ring resonators are connected in series, the optical signals of different wavelengths will be downloaded to the designated ports by the corresponding double-ring resonators in series, so as to achieve the purpose of bidirectional non-blocking routing of the four ports. At the same time, the router can also be used as a broadcast mode router .

Description

technical field [0001] The invention relates to an optical switching network, in particular to an on-chip integrated 4×4 non-blocking wavelength selection router based on a serial double-ring resonator. Background technique [0002] The explosive growth of communication capacity has led to an increasing demand for communication bandwidth. However, the interconnection based on traditional electrical metal wires encounters bottlenecks in terms of delay, power consumption and bandwidth. Nowadays, the further development of computers depends on the parallel processing between multiple cores, which puts forward more stringent requirements for electrical interconnection. Compared with electrical interconnection, optical interconnection has the advantages of large bandwidth, low delay and low power consumption, so the on-chip optical network system has become a key technical solution that may replace electrical interconnection. [0003] In the on-chip optical network system, the o...

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Problems solved by technology

However, this structure is prone to produce asymmetric spectral lines similar to Fano line, and the splitting of resonant spectral lines makes the utilization of optical bandwidth not high.

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