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Ring resonator optical modulator based on graphene microstrip line traveling wave electrode

A ring resonant cavity and traveling wave electrode technology, applied in the field of optoelectronics, can solve the problem of small modulation bandwidth, achieve wide modulation bandwidth, achieve impedance matching, and improve modulation efficiency

Active Publication Date: 2019-07-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the graphene-based optical modulator is limited by the large RC constant of the lumped electrode structure in the prior art, resulting in a relatively small modulation bandwidth, and provides a graphene-based microstrip line traveling wave electrode ring resonator light modulator

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  • Ring resonator optical modulator based on graphene microstrip line traveling wave electrode
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  • Ring resonator optical modulator based on graphene microstrip line traveling wave electrode

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[0028] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention.

[0029] Ring cavity optical modulator based on graphene microstrip line traveling wave electrode, such as figure 1 , figure 2 with image 3 As shown, it includes a substrate layer 1, a strip-shaped optical waveguide 2 and a ring-shaped optical waveguide 3 arranged on the surface of the substrate layer 1. The strip-shaped optical waveguide 2 divides the surface of the substrate layer 1 into two parts, and the ring-shaped optical waveguide 3 Located on one side of the strip-shaped optical waveguide 2, on both sides of the strip-shaped optical waveguide 2, a first dielectric filling layer 41 and a...

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Abstract

The invention discloses a ring resonant cavity optical modulator based on a graphene microstrip line traveling wave electrode, which belongs to the field of optoelectronic technology, and solves the problem that the graphene-based optical modulator is limited by the larger RC of the lumped electrode structure in the prior art. Constant, resulting in a relatively small modulation bandwidth, a ring resonator optical modulator based on graphene microstrip line traveling wave electrodes is provided. The present invention comprises a substrate layer, a strip optical waveguide and a ring optical waveguide arranged on the surface of the substrate layer, the strip optical waveguide divides the surface of the substrate layer into two parts, and the ring optical waveguide is arranged on one side of the strip optical waveguide On both sides of the strip optical waveguide, a first dielectric filling layer and a second dielectric filling layer are arranged on the surface of the substrate layer, and a microstrip line traveling wave electrode structure is arranged on the ring optical waveguide. The present invention is used for Achieving light modulation rate.

Description

Technical field [0001] A ring resonator optical modulator based on a graphene microstrip line traveling wave electrode is used to realize the optical modulation rate and belongs to the field of optoelectronic technology. Background technique [0002] Optical modulators and optical switches are the core components of optical communication networks, which play an important role in the construction of optical communication networks. Optical modulators and optical switches based on planar integration technology have the advantages of low cost, compact structure, and high integration. However, there are still many difficulties that have not been resolved, such as power consumption, speed, and extinction ratio. Optical modulators and optical switches based on ring resonators are new technologies developed in recent years and are expected to be applied to large-scale integrated optical circuits in the future. The ring resonant cavity can realize the feedback of the optical field withou...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/03G02F1/035
CPCG02F1/0316G02F1/035
Inventor 陆荣国叶胜威刘天良夏瑞杰陈德军张尚剑刘永
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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