A reverse light scattering transparent ceramic capable of realizing optical path off-on and its application

A technology of transparent ceramics and light scattering, which is applied in the field of optical communication, can solve problems that do not involve electronically controlled light scattering effects, and achieve the effects of simplifying optical path design, reducing system cost, and simple device structure

Active Publication Date: 2022-05-10
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the response speed of ferroelectric domain polarization reversal is on the order of nanoseconds, optical modulators based on electrically controlled light-scattering ceramics have important application prospects in high-speed, polarization-independent laser systems, but this patent does not refer to another An electronically controlled light scattering effect with opposite characteristics (referred to as "reverse light scattering")

Method used

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  • A reverse light scattering transparent ceramic capable of realizing optical path off-on and its application
  • A reverse light scattering transparent ceramic capable of realizing optical path off-on and its application
  • A reverse light scattering transparent ceramic capable of realizing optical path off-on and its application

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] According to Pb 1-x La x (Zr y Ti 1-y ) 1-x / 4 o 3 , where x=0.0752, y=0.70 ingredients, add 0.7 parts of absolute ethanol (ie 100g powder to add 70ml), ball mill for 5 hours, dry and sieve through 200 mesh. Add 6% PVA to granulate, press into Φ35mmx20mm cylindrical biscuit, and sinter by hot pressing with oxygen. The sintering temperature is 1280°C / 10h, the pressure is 40MP, and the oxygen flow rate is maintained at 5 liters / minute during the sintering process. After cutting, grinding, polishing and other processes, the ceramic blocks are processed into Φ35mm×1mm, 5mm×5mm×2mm ceramic sheets, and after double-sided polishing, the optical transmittance and reverse light scattering performance tests are carried out. In addition, they are also processed into 5mm×5mm The 5mm×1mm ceramic sheet was finely ground on both sides, and the ferroelectric test was carried out. The main performance parameters are shown in Table 1.

Embodiment 2

[0041] According to Pb 1-x La x (Zr y Ti 1-y ) 1-x / 4 o 3 , where x=0.0743, y=0.70 ingredients, add 0.7 parts of absolute ethanol (ie 100g powder into 70ml), ball mill for 5 hours, dry and sieve through 200 mesh. Add 6% PVA to granulate, press into Φ35mmx20mm cylindrical biscuit, and sinter by hot pressing with oxygen. The sintering temperature is 1280°C, the pressure is 40MP, the pressure is released after 10 hours of heat preservation and pressure holding, and the oxygen flow rate is kept at 5 liters / minute during the sintering process. After cutting, grinding, polishing and other processes, the ceramic blocks are processed into Φ35mm×1mm, 5mm×5mm×2mm ceramic sheets, and after double-sided polishing, the optical transmittance and reverse light scattering performance tests are carried out. In addition, they are also processed into 5mm×5mm The 5mm×1mm ceramic sheet was finely ground on both sides, and the ferroelectric test was carried out. The main performance parameters...

Embodiment 3

[0043] According to Pb 1-x La x (Zr y Ti 1-y ) 1-x / 4 o 3 , where x=0.0734, y=0.70 ingredients, add 0.7 part of absolute ethanol (ie 100g powder into 70ml), ball mill for 5 hours, dry and sieve through 200 mesh. Add 6% PVA to granulate, press into Φ35mmx20mm cylindrical biscuit, and sinter by hot pressing with oxygen. The sintering temperature is 1280°C, the pressure is 40MP, the pressure is released after 10 hours of heat preservation and pressure holding, and the oxygen flow rate is kept at 5 liters / minute during the sintering process. After cutting, grinding, polishing and other processes, the ceramic blocks are processed into Φ35mm×1mm, 5mm×5mm×2mm ceramic sheets, and after double-sided polishing, the optical transmittance and reverse light scattering performance tests are carried out. In addition, they are also processed into 5mm×5mm The 5mm×1mm ceramic sheet was finely ground on both sides, and the ferroelectric test was carried out. The main performance parameters ...

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Abstract

The invention relates to a reverse light scattering transparent ceramic capable of realizing light path on-off and its application. The reverse light scattering transparent ceramic is lead zirconate titanate reverse light scattering transparent ceramic, and the composition formula is Pb 1‑x La x (Zr y Ti 1‑y ) 1‑x / 4 o 3 , where 0.0734≤x≤0.0752, 0.68≤y≤0.72.

Description

technical field [0001] The invention relates to the field of optical communication, in particular to a reverse light scattering transparent ceramic component capable of realizing optical path off-on and application thereof. Background technique [0002] With the continuous development of modern optical communication and laser technology, various optical systems urgently need a variety of optical components for modulating optical signals, especially for high-speed dynamic electro-optic optical switches, optical attenuators, optical isolators and other optical modulation devices. . In high-speed dynamic modulators, electro-optic ceramics represented by PLZT have good light transmission performance, and have the advantage of fast response speed (nanosecond order) compared with liquid crystal materials, while LiNbO 3 Compared with crystal (a symbolic electro-optic material in the communication field), it has the advantage of low driving voltage due to its large electro-optic co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/491C04B35/622
CPCC04B35/491C04B35/622C04B2235/602C04B2235/656C04B2235/6567C04B2235/6583C04B2235/9653
Inventor 曾霞何夕云仇萍荪凌亮
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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