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Travelling wave electrode structure and photoelectronic device with same

A technology of optoelectronic devices and traveling wave electrodes, which is applied in instruments, optics, nonlinear optics, etc., can solve the problems of poor high-speed performance of devices, and achieve the effect of good high-speed performance.

Active Publication Date: 2012-07-25
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the embodiment of the present invention is to provide an optoelectronic device with a traveling wave electrode structure and a traveling wave electrode structure to overcome the characteristic impedance of the device and the system in the prior art The technical problem of poor high-speed performance of the device caused by the mismatch between standard impedances

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  • Travelling wave electrode structure and photoelectronic device with same
  • Travelling wave electrode structure and photoelectronic device with same
  • Travelling wave electrode structure and photoelectronic device with same

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation manners.

[0022] An optoelectronic device with a traveling-wave electrode structure in an embodiment of the present invention includes a section of traveling-wave electrode, and the traveling-wave electrode is a microwave transmission line. A signal excitation source is added to one end of the traveling-wave electrode. The signal excitation source includes superposition of DC bias voltage and microwave signal.

[0023] At the other end of the traveling wave electrode, that is, the other end of the microwave transmission line electrode, the matching load Z L connected. Similar to the prior art, because the impedance of the microwave transmission line electrode is very close to the impedance of the matching load connected...

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Abstract

The invention discloses a photoelectronic device with a travelling wave electrode structure. Travelling wave electrodes include a travelling wave electrode on an optical waveguide structure and a travelling wave electrode deviating from the optical waveguide structure, so that the difference between characteristic impedance of the device and normal impedance is smaller than a preset value. The invention further discloses the travelling wave electrode structure. By means of the travelling wave electrode structure and photoelectronic device with the same, the characteristic impedance of the device can be matched with the normal impedance of a system within a wide frequency range, and accordingly better high speed performance of the device can be guaranteed.

Description

technical field [0001] The invention relates to the field of optoelectronic technology, in particular to an optoelectronic device with a traveling wave electrode structure and the traveling wave electrode structure. Background technique [0002] High-speed optoelectronic devices are the core of high-speed optical communication systems, and the frequency response characteristics of optoelectronic devices directly determine the signal transmission speed of the system. The frequency response of optoelectronic devices can be effectively enhanced by optimizing the design of the driving electrode structure of optoelectronic devices. [0003] The most common electrode structure in the design of optoelectronic devices such as semiconductor electroabsorption light modulators is a lumped electrode, and its structure can be as follows figure 1 shown. In the lumped electrode structure, the optical waveguide structure includes figure 1 In p, i, n layers, signal electrodes such as fig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/017
Inventor 于弋川
Owner HUAWEI TECH CO LTD