Apparatus and method for light-operated controlling light delay line based on silicon based micro-ring

Abstract

The invention relates to a device and a method of light-control and adjustable light delay line based on a silica-based micro-ring, pertaining to the technical field of optical communication. The device comprises a data packet transmitter, a pump-control optical generation system, the silica-based micro-ring, a coupled system of the silica-based micro-ring and a data packet delay measuring system, wherein, the data packet transmitter and pump-control light are connected through a 3dB coupler, the output of the coupler is connected with the silica-based micro-ring and the coupled system of the silica-based micro-ring, and the light output from the silica-based micro-ring is input into the data packet delay measuring system to calculate the relative delay of the data packet. The invention applies the silica-based micro-ring as an ultra-small integratable on-chip delay line and controls the delay of the data packet by using the pump light entering the silica-based micro-ring by being coupled with the data packet. By adjusting an adjustable light attenuator successively, the power of the pump light can be changed successively, thus realizing accurate and successive adjustment over data packet delay. The invention has low requirement for the bump power, simple method and external control which adding no surplus parts on the manufacture of the device.

Description

technical field [0001] The present invention relates to a device and method in the technical field of optical communication, in particular to a device and method for an optically controlled and adjustable optical delay line based on a silicon-based microring. Background technique [0002] Optical buffering technology is an emerging key technology to solve the data packet competition in all-optical switching network and computer all-optical interconnection. In particular, the on-chip optical buffer technology using micro-nano waveguide structures can be applied to integrated optical circuits. The recently emerging silicon-on-insulator structure technology provides a good platform for optoelectronic integrated devices. The fabrication process of this structure is fully compatible with the CMOS integrated circuit process, and the fabricated devices are compact in structure and can reach submicron in size. The essence of an optical buffer is an optical delay line, and it is gen...

AI Technical Summary

Problems solved by technology

Although this method provides a large amount of delay, the disadvantage is that the delay amount is fixed and cannot be adjusted, and it lacks flexibility.

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