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Electrooptic crystal material and application thereof

A technology of electro-optic crystal and application, applied in the field of electro-optic crystal material and its application

Inactive Publication Date: 2013-03-27
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

So far, there is no domestic and foreign related Na 3 ln 9 B 8 o 27 Reports on the study of electro-optic properties of electro-optic crystal materials or their rare earth-doped electro-optic crystal materials or their homologous electro-optic crystal materials or their application as electro-optic crystal devices

Method used

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  • Electrooptic crystal material and application thereof
  • Electrooptic crystal material and application thereof
  • Electrooptic crystal material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1: making Na 3 La 9 B 8 o 27 Electro-optic crystal devices (electro-optic modulators)

[0021] Such as figure 2 As shown, using Na 3 La 9 B 8 o 27 The crystal has a length l=20mm in the Z direction, a width w=10mm, a thickness d=4mm in the X direction, light passes in the Z direction, and an electric field is applied in the X direction; the electro-optic modulator can be manufactured and applied to a laser.

Embodiment 2

[0022] Embodiment 2: making Na 3 SM 9 B 8 o 27 Electro-optic crystal devices (electro-optic Q-switches)

[0023] Such as figure 2 As shown, using Na 3 SM 9 B 8 o 27 Crystal, length l=25mm in Z direction, width w=15mm, thickness d=5mm in X direction, light in Z direction, electric field in X direction; electro-optic crystal device (electro-optic Q switch) can be produced and applied in laser.

Embodiment 3

[0024] Embodiment 3: making Na 3 (Nd 0.1 La 0.9 ) 9 B 8 o 27 Electro-optic crystal devices (electro-optic modulators)

[0025] Such as image 3 As shown, using Na 3 (Nd 0.1 La 0.9 ) 9 B 8 o 2 The crystal has a length l=20mm in the Z direction, a width w=10mm, a thickness d=3mm in the Y direction, light in the Z direction, and an electric field in the Y direction; it can be used as an electro-optic crystal device (electro-optic modulator) for lasers.

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Abstract

The invention relates to an electrooptic crystal material and application thereof in the technical field of photoelectronics. The electrooptic crystal material has a chemical formula of Na3Ln19B8O27, Na3(Ln2xLn11-x)9B8O27 or (AxNa1-x)3Ln19B8O27, wherein x is more than 0 and less than 1. The electrooptic crystal material belongs to a point group, and a linear electrooptic coefficient matrix only contains one electrooptic coefficient gamma 22, wherein the electrooptic coefficient gamma 22 is equal to 2.3pm / V. The electrooptic crystal material has the advantages of no deliquescence, large laser injury resistance threshold value and the like, and can be widely applied to the technical field of laser to prepare electrooptic modulators, electrooptic Q switches and the like.

Description

technical field [0001] The invention relates to an electro-optic crystal material and its application in the technical field of optoelectronics. Background technique [0002] The electro-optic effect of the crystal refers to the change of the refractive index of the crystal caused by the action of an external electric field when the crystal is incident with light. It can be used as a high-speed optical switch and has a very important application in laser technology. The currently used electro-optic crystals are: DKDP, LiNbO 3 , KTP, LGS, BBO and other crystals. These crystals have certain disadvantages, such as DKDP crystals are easy to absorb moisture because they grow from aqueous solution; LiNbO 3 Crystals with low damage threshold, poor optical uniformity, and stoichiometric LiNbO 3 Single crystal growth is difficult; KTP crystals have high electrical conductivity and "gray trace" problems, which affect their use in high-power lasers. LGS crystals are inconvenient in...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/02C30B29/22
Inventor 李如康张建秀夏明军张国春吴以成
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI