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Temperature-adaptive frequency-stabilization light wave filter and working method thereof

A working method and self-adaptive technology, applied in the field of filters, can solve problems such as poor performance of fixed light wave filters, and achieve the effects of stable frequency, constant wavelength, and improved performance

Inactive Publication Date: 2019-07-19
BRIGATES MICROELECTRONICS KUNSHAN
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] However, existing fixed lightwave filters perform poorly

Method used

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  • Temperature-adaptive frequency-stabilization light wave filter and working method thereof
  • Temperature-adaptive frequency-stabilization light wave filter and working method thereof
  • Temperature-adaptive frequency-stabilization light wave filter and working method thereof

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Embodiment Construction

[0033] As mentioned in the background art, existing light wave filters have poor performance.

[0034] A light wave filter, please refer to figure 1 , including: a resonant cavity structure, the resonant cavity structure is a Fabry-Perot resonant cavity, and the resonant cavity structure includes a first cavity plate 101 and a second cavity plate 102 opposite to each other.

[0035] The cavity length L of the resonant cavity structure directly affects the wavelength of the output light wave. Since the material of the first cavity plate 101 and the second cavity plate 102 is glass, and the material of the first cavity plate 101 and the second cavity plate 102 has the characteristics of thermal expansion and contraction, the change of the ambient temperature will cause the cavity length L to change, thus This causes the wavelength of the output light to drift, thereby affecting the stability of the wavelength of the output light.

[0036] In order to solve the above problems, ...

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Abstract

The invention discloses a temperature-adaptive frequency-stabilization light wave filter and a working method thereof. The frequency-stabilization light wave filter comprises a resonant cavity structure, a first voltage source, a temperature sensor and a control device, wherein the resonant cavity structure comprises a first cavity plate and a second cavity plate, and the first cavity plate and the second cavity plate are opposite; the first cavity plate comprises a first piezoelectricity layer and first electric conduction layers; the first electric conduction layers are positioned on the surfaces of two sides of the first piezoelectricity layer along a direction from the first cavity plate and the second cavity plate; the first voltage source is independently connected with the first electric conduction layers on two sides of the first electric conduction layer, and is suitable for applying first compensation voltage to the first electric conduction layers on two sides of the first piezoelectricity layer; the temperature sensor is suitable for measuring the temperature in the resonant cavity structure; and the control device is provided with a first output end, the input end of the control device is connected with the temperature sensor, and the first output end is connected with the first voltage source. The performance of the frequency-stabilization light wave filter is improved.

Description

technical field [0001] The invention relates to the field of filters, in particular to a temperature-adaptive frequency-stabilized light wave filter and a working method thereof. Background technique [0002] A filter is a wavelength selective device that has important applications in communication systems, such as light wave filters. [0003] Lightwave filters are divided into fixed lightwave filters and tunable lightwave filters. Among them, the fixed light wave filter is an important light wave filter, and the wavelength output by the fixed light wave filter is fixed under ideal conditions. [0004] However, the performance of existing fixed lightwave filters is poor. Contents of the invention [0005] The problem solved by the invention is to provide a temperature-adaptive frequency-stabilized optical wave filter and its working method, so as to improve the performance of the temperature-adaptive frequency-stabilized optical wave filter. [0006] In order to solve t...

Claims

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Application Information

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IPC IPC(8): G02F1/21
CPCG02F1/21G02F1/213
Inventor 张文君贺行政庞昕
Owner BRIGATES MICROELECTRONICS KUNSHAN
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