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Titanium gem photonic crystal fiber and preparation method thereof

A technology of photonic crystal fiber and hollow-core photonic crystal, which can be applied in cladding fiber, optical waveguide light guide, etc., can solve the problems of not having Ti:sapphire characteristics and unable to make tunable fiber lasers, etc.

Inactive Publication Date: 2010-08-11
阮双琛 +5
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the sapphire fiber is not doped with titanium, and the titanium fiber on the market is doped with titanium dioxide instead of trivalent Ti ions, so it does not have the characteristics of titanium sapphire, and it is impossible to make a tunable fiber laser on this basis

Method used

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preparation example Construction

[0015] The embodiment of the present invention provides a method for preparing a titanium sapphire photonic crystal fiber, which includes the following process steps:

[0016] 1) Put the hollow-core photonic crystal fiber, the Ti source and the Al source in the vacuum tube of the vacuum atmosphere;

[0017] 2) Pass inert gas into the vacuum tube and heat the vacuum tube;

[0018] 3) Pass O into the vacuum tube 2 , and heat preservation reaction;

[0019] 4) Stop feeding O 2 , and then pass inert gas into the vacuum tube again and heat up for high temperature solidification and crystallization;

[0020] 5) Stop feeding the inert gas, and feed H into the vacuum tube 2 , cooling to get the finished product.

[0021] The molar ratio of the Ti source and the Al source in step 1) of the above-mentioned embodiment of the present invention is 1:110-180, preferably 1:141. The total amount of the Ti source and the Al source can be flexibly adjusted according to the actual demand fo...

Embodiment 1

[0032] The preparation method of titanium sapphire photonic crystal fiber is as follows:

[0033] The first step: place the 5cm hollow-core photonic crystal fiber in the high-temperature zone (the center of the tube) in the vacuum tube of the vacuum atmosphere high-temperature furnace, and the Ti organic compound bis(cyclopentadiene) with the total amount of the two elements of Ti and Al being 0.001mol Alkenyl) dimethyl titanium and Al organic compound trialkylaluminum 10% + trialkyl trialuminum trichloride 90% molar ratio is the mixture of 1: 141 placed in the low temperature zone in the vacuum tube of the vacuum atmosphere high temperature furnace (tube both ends), and vacuumize the vacuum tube, so that the vacuum tube is in a vacuum atmosphere;

[0034] Step 2: First, flow Ar at a flow rate of 200 sccm into the vacuum tube, and raise the temperature of the vacuum tube to 650° C. in a protective atmosphere.

[0035]The third step: the temperature in the vacuum tube is maint...

Embodiment 2

[0039] The preparation method of titanium sapphire photonic crystal fiber is as follows:

[0040] Step 1: Place a 10cm hollow-core photonic crystal fiber in the high-temperature zone (the center of the tube) in the vacuum tube of a high-temperature furnace in a vacuum atmosphere, and oxidize titanium acetylacetonate, an organic compound of Ti, whose total amount of the two elements is 0.01mol. A mixture of 40% + 60% titanium acetylacetonate and Al organic compound aluminum acetylacetonate in a molar ratio of 1:110? Put it in the low-temperature area (both ends of the tube) in the vacuum tube of the vacuum atmosphere high-temperature furnace, and evacuate the vacuum tube so that the vacuum tube is in a vacuum atmosphere;

[0041] The second step: first pass 100 sccm flow of N into the vacuum tube 2 , raise the temperature of the vacuum tube to 500 °C in a protective atmosphere.

[0042] The third step: the temperature in the vacuum tube is maintained at 500 ° C, and 4% of the...

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Abstract

The invention discloses a titanium gem photonic crystal fiber and a preparation method thereof. The preparation method comprises the following processing steps: putting a hollow-core photonic crystal fiber, a Ti source and an Al source into a vacuum tube with vacuum atmosphere; introducing inert gases into the vacuum tube, and heating the vacuum tube; introducing O2 into the vacuum tube, and insulating for reacting; stopping introducing O2, introducing inert gases into the vacuum tube, and heating for solidifying and crystallizing at high temperature; and stopping introducing inert gases, introducing H2 into the vacuum tube, and cooling to obtain a finished product. The invention also relates to the titanium gem photonic crystal fiber prepared by the method. The method of the invention has simple processes and low cost and is convenient for industrialized production; and the finished product prepared by the method has high stability and excellent light absorption bandwidth, light emission bandwidth, tensile strength, sensitivity, accuracy and reliability.

Description

technical field [0001] The invention belongs to the technical field of titanium sapphire photonic crystal fiber, and in particular relates to a titanium sapphire photonic crystal fiber and a preparation method thereof. Background technique [0002] Titanium fiber and sapphire fiber are currently on the market. These titanium optical fibers are coated with a layer of titanium dioxide on the outer layer of the optical fiber. Since the silicon material doped with titanium dioxide has a different thermal expansion coefficient than pure silicon, the titanium-coated optical fiber will improve the microcracks of the optical fiber due to the effect of surface tension after wire drawing, thereby increasing the tensile strength. Sapphire single crystal fiber has special optical and physical properties, is suitable for high temperature environment, and has higher sensitivity, accuracy and reliability when used as a fiber optic sensor. However, the sapphire fiber is not doped with tit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/02
Inventor 阮双琛翟剑庞张敏仇明侠郑婉君
Owner 阮双琛
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