Modulation integrated light buffer based on SOI (silicon-on-insulator)-based structure

Abstract

The invention discloses a modulation integrated light buffer based on an SOI (silicon-on-insulator)-based structure. The modulation integrated light buffer based on the SOI-based structure comprises aridged straight waveguide and a cascaded annular waveguide which are prepared based on an SOI material, wherein the cascaded circular waveguide comprises a plurality of annular waveguides; the ridgedstraight waveguide and the annular waveguide at the bottom form a coupling area with distance, and the adjacent two annular waveguides are in distance connection through end face to end face to forma coupling area; the annular waveguide at the bottom comprises a left modulation arm, a right modulation arm and a coplanar waveguide electrode; the coplanar waveguide electrode and the left modulation arm as well as the coplanar waveguide electrode and the right modulation arm form electrical contact; and the left modulation arm and the right modulation arm realize on and off of the light bufferunder the action of a digital electric signal loaded by the coplanar waveguide electrode. The modulation integrated light buffer based on the SOI-based structure can realize high-speed modulation, canrapidly complete on-off operation of the light buffer function, can realize ultrafast caching operation and can be applied to an integrated high-speed all optical network.

Description

technical field [0001] The invention relates to a modulation integrated optical buffer based on an SOI base structure, belonging to the technical field of optical communication. Background technique [0002] With the rapid development of the electronic industry, the Internet and information technology, the technology and requirements for information processing are also getting higher and higher. At present, in the field of communication based on electronic technology, the information processing method at the network node is electrical signal propagation or optical-electrical-optical conversion. Limited by electronic devices, its working online rate is 40Gb / s. It is difficult and costly for electrical communication equipment to develop to a higher working speed; the introduction of optical-electrical and electrical-optical conversion limits its real processing rate, which will cause network congestion and data loss. [0003] At present, the most important factor limiting th...

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Problems solved by technology

[0007] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a modulation-integrated optical buffer based on the SOI base structure, and solve the problem that the existing optical buffer cannot realize the buffer function while completing high-speed switching.

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