An n×n Arrayed Waveguide Grating Optical Wavelength Router with Reduced Frequency Deviation

Abstract

The invention discloses an N*N array waveguide grating optical wavelength router capable of reducing frequency deviation. The router comprises N input waveguides, an input panel waveguide area, an array waveguide area, an output panel waveguide area and N output waveguides. The length difference is introduced into the input panel waveguide area and the output panel waveguide area by the adoption of a tilting Rowland circle structure, the contradiction that the free spectral range requirement and the integer diffraction level requirement of a traditional array waveguide grating optical wavelength router cannot be met at the same time is eliminated, the deviation problem of the free spectral range is solved, and thus the frequency deviation of an output channel is reduced. Based on the facts that each constituent part of the traditional array waveguide grating optical wavelength router is not changed and an extra device is not introduced at the same time, the frequency deviation problem of the output wavelength of the traditional array waveguide grating optical wavelength router is solved, the router is suitable for waveguide materials and waveguide structures on the basis of silicon dioxide, indium phosphide, silicon and the like, and the advantages of being easy to manufacture, low in cost and the like are achieved.

Description

technical field

[0001] The invention relates to an arrayed waveguide grating optical wavelength router, in particular to an N*N arrayed waveguide grating optical wavelength router which reduces frequency deviation. Background technique

[0002] As the minimum feature size of the semiconductor process continues to decrease according to Moore's Law, the chip integration level is getting higher and higher, and the data exchange speed between each transistor will not be able to keep up with its own data processing speed. The electrical interconnection technology based on metal conduction is becoming Facing an insurmountable "electronic bottleneck". Compared with electrical interconnection, optical interconnection (Optical Interconnection) uses photons as the information carrier, and has the advantages of ultra-high bandwidth, ultra-fast transmission rate, anti-electromagnetic interference and low energy consumption, which will trigger a new round of revolution in the information...

Images