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arrayed waveguide grating

An arrayed waveguide grating and grating technology, which is applied in the directions of optical waveguides, light guides, optics, etc., can solve the problems of long startup time of AWG, and achieve the effects of shortening startup time, simplifying structure and reducing time.

Active Publication Date: 2016-06-22
SOLOREIN TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the above-mentioned heating method transfers heat through the heat-conducting aluminum sheet 104, it takes 10 to 15 minutes to reach thermal equilibrium, resulting in a longer start-up time for the AWG

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Embodiment Construction

[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, a lot of specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described here, and those skilled in the art can do it without departing from the meaning of the present invention. By analogy, the present invention is therefore not limited to the specific examples disclosed below.

[0029] Secondly, the present invention is described in detail in combination with schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional view showing the device structure will not be partially enlarged according to the gener...

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Abstract

The invention provides an arrayed waveguide grating, comprising: a heating electrode located on the back of the grating area of ​​the AWG chip, the heating electrode is in direct contact with the base material of the grating area, and the heating electrode generates heat when energized. The arrayed waveguide grating in the present invention avoids the use of heating sheets and heat-conducting aluminum plates in the prior art for the purpose of heating, and a heating electrode is arranged on the back of the grating area of ​​the AWG chip, and the heating electrode is directly connected to the base material of the grating area. Contact, the heat generated by the heating electrode when it is energized can be directly transferred to the substrate of the AWG chip, so that the time for the device to reach thermal equilibrium can be greatly reduced, and the start-up time of the AWG can be shortened. Moreover, the heating electrode is directly integrated on the base material of the grating area of ​​the AWG chip, which reduces the volume and simplifies the structure of the AWG compared to the separate heating sheet and heat-conducting aluminum plate in the prior art.

Description

technical field [0001] The present invention relates to the technical field of optical fiber communication, and more specifically relates to an arrayed waveguide grating. Background technique [0002] AWG (ArrayedWaveguideGrating, arrayed waveguide grating) is usually used for multiplexing and demultiplexing of DWDM system (DenseWavelengthDivisionMultiplexing, dense wavelength division multiplexer). AWG achieves wave division through waveguide grating diffraction. Among them, the ITU (Inter-nationalTelecommunication Union, International Telecommunication Union) center wavelength is related to the refractive index of the waveguide grating material. To ensure that the ITU center wavelength meets the requirements, the material refractive index of the waveguide grating needs to be stable. Since the base material of the waveguide is quartz, its refractive index is related to temperature. Therefore, controlling the ITU center wavelength requires temperature control or other compen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/12
CPCG02B6/12009
Inventor 冯文友陈贵明李朝阳
Owner SOLOREIN TECH