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Electro-optical modulator

An electro-optical modulator and electrode technology, which is applied in the field of optical communication, can solve the problem of difficult to achieve low driving voltage and high modulation bandwidth modulation at the same time, and achieve the effect of low driving voltage and high modulation bandwidth modulation

Active Publication Date: 2021-03-19
WUHAN OPTICAL VALLEY INFORMATION OPTOELECTRONICS INNOVATION CENT CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]However, in the process of light modulation, it is difficult to simultaneously achieve low driving voltage and high modulation bandwidth modulation

Method used

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  • Electro-optical modulator
  • Electro-optical modulator
  • Electro-optical modulator

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Embodiment Construction

[0030] Exemplary embodiments disclosed in the present application will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present application are shown in the drawings, it should be understood that the present application may be embodied in various forms and should not be limited to the specific embodiments set forth herein. Rather, these embodiments are provided for a more thorough understanding of the present application and for fully conveying the scope disclosed in the present application to those skilled in the art.

[0031] In the following description, numerous specific details are given in order to provide a more thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without one or more of these details. In other examples, in order to avoid confusion with the present application, some technical features kno...

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Abstract

The embodiment of the invention discloses an electro-optical modulator. The electro-optical modulator comprises a radio frequency electrode and an optical waveguide; the radio frequency electrode comprises a first electrode and a second electrode, and the optical waveguide is located between the first electrode and the second electrode; the radio frequency electrode is used for modulating light waves in the optical waveguide; the optical waveguide has a first structural relationship relative to the radio frequency electrode, so that the group refractive indexes of the optical waveguide and theradio frequency electrode are matched; and the first structural relationship is determined based on the group refractive index of the optical waveguide and the group refractive index of the radio frequency electrode.

Description

technical field [0001] The present application relates to the technical field of optical communication, and in particular to an electro-optical modulator. Background technique [0002] High-speed electro-optic modulation has very extensive and important applications, such as optical communication, microwave optoelectronics, laser beam deflection, wavefront modulation, etc. Electro-optic modulators use certain electro-optic crystals, such as lithium niobate crystals (LiNbO 3 ), gallium arsenide crystal (GaAs) and lithium tantalate crystal (LiTaO 3 ) modulator made of electro-optic effect. The electro-optic effect means that when a voltage is applied to the electro-optic crystal, the refractive index of the electro-optic crystal will change, resulting in a change in the characteristics of the light wave passing through the crystal, and realizing the modulation of the phase, amplitude, intensity and polarization state of the optical signal. [0003] However, in the process o...

Claims

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Application Information

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IPC IPC(8): G02F1/035G02F1/03
CPCG02F1/035G02F1/0316
Inventor 李淼峰张宇光王磊肖希
Owner WUHAN OPTICAL VALLEY INFORMATION OPTOELECTRONICS INNOVATION CENT CO LTD
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