Ytterbium-bismuth co-doped base-free borophosphate optical glass and preparation method thereof

An optical glass and alkali-free boron technology, applied in the field of optical glass, can solve the problems of unstable physical and chemical properties of glass, low pump light absorption ability, low fluorescence emission intensity, etc., to improve chemical stability and improve preparation conditions , enhance the effect of luminous performance

Inactive Publication Date: 2013-01-02
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

[0004] However, if the optical glass they invented is to be put into practical use, there are still problems such as low absorption of pump light by bismuth ions, low fluorescence emission intensity, unstable physical and chemical properties of the glass, unsuitable for preparing optical fibers, and high melting temperature.

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  • Ytterbium-bismuth co-doped base-free borophosphate optical glass and preparation method thereof
  • Ytterbium-bismuth co-doped base-free borophosphate optical glass and preparation method thereof
  • Ytterbium-bismuth co-doped base-free borophosphate optical glass and preparation method thereof

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Embodiment 1-27

[0040] The preparation method of embodiment 1-27 comprises the following concrete steps:

[0041] ① Weighing raw materials: After selecting the mole percentage of each composition of the optical glass and the total amount of prepared glass, calculate the weight of each composition raw material and weigh the weight of each composition raw material, the P 2 o 5 , B 2 o 3 、Al 2 o 3 Analytical pure NH 4 h 2 PO 4 、H 3 BO 3 ,, Al(OH) 3 For introduction, other raw materials are selected to introduce corresponding oxides, and each raw material is placed in a corundum mortar to fully grind and mix evenly to form a mixture;

[0042] ② Pre-burning: Fully pre-fire the mixture at 500-600°C so as to completely release the moisture and exhaust gas components in the raw materials. After sufficient pre-burning, grind again to form glass raw materials;

[0043] ③ Melting: Melting the glass raw material at 1200-1400°C, the glass raw material is completely melted, homogenized, and clar...

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Abstract

The invention relates to ytterbium-bismuth co-doped base-free borophosphate optical glass and a preparation method thereof. The glass comprises the following components by molar percent: 45-84mol% of P2O5, 5-40mol% of B2O3, 5-35mol% of Al2O3, 6-20mol% of Y2O3, 0.01-10mol% of Yb2O3 and 0.01-5mol% of Bi2O3. The preparation method comprises the steps of raw material weighing, pre-roasting, founding,pouring, annealing and the like. According to the invention, preparation process is simple, the prepared glass contains no base and has high glass stability and strong near-infrared fluorescence emission characteristic, and the luminous intensity of bismuth ion is enhanced. The glass can be used in the fields of optical amplifiers, superpower lasers, tunable lasers, fiber-optical drawing and the like.

Description

technical field [0001] The invention relates to optical glass, in particular to an ytterbium bismuth co-doped alkali-free borophosphate optical glass and a preparation method thereof. technical background [0002] The invention of the erbium-doped fiber amplifier (EDFA) used in the 1550nm frequency band in the optical fiber communication system has greatly promoted the development of optical fiber communication to the direction of all-optical band transmission. However, the gain bandwidth of erbium-doped fiber amplifiers (EDFA) and other rare earth ion-doped fiber amplifiers widely used today does not exceed 100nm, and can only cover the third communication window in silica single-mode fibers, which will limit the The development of communication technology towards higher data transmission rate and larger data transmission capacity. Although the Raman amplifier can provide gain in a wide bandwidth range up to 300nm, it requires very high pumping power, which makes it diffic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/19
Inventor 盛秋春陈丹平王晓琳
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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