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Praseodymium-doped borophosphate base near-infrared ultra wide band luminescent glass and preparation method thereof

A luminescent glass and phosphate technology, which is applied in the field of praseodymium-doped borophosphate-based near-infrared ultra-broadband luminescent glass and its preparation, can solve the problems of high melting temperature, low fluorescence emission intensity, and low pump light absorption capacity, etc. The preparation process is simple, the luminous intensity is enhanced, and the preparation conditions are improved

Inactive Publication Date: 2012-09-19
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 is still a problem that the broadband fluorescence cannot cover the entire optical communication band (800-1700nm), the absorption ability of the luminescent ions to the pump light is not high, and the fluorescence emission intensity is low. Unstable performance, not suitable for preparing optical fibers, high melting temperature, etc.

Method used

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  • Praseodymium-doped borophosphate base near-infrared ultra wide band luminescent glass and preparation method thereof
  • Praseodymium-doped borophosphate base near-infrared ultra wide band luminescent glass and preparation method thereof
  • Praseodymium-doped borophosphate base near-infrared ultra wide band luminescent glass and preparation method thereof

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Embodiment 1-27

[0038] The preparation method of embodiment 1-27 is as follows:

[0039] In Example 1-27, P 2 o 5 , B 2 o 3 、Al 2 o 3 respectively by NH 4 h 2 PO 4 、H 3 BO 3 ,,Al(OH) 3 Introduced, other raw materials are selected to introduce corresponding oxides. Then select and analyze pure raw materials, respectively weigh 50g of glass frit according to the proportions (mol%) of Examples 1-27 in Table 1, Table 2, and Table 3, respectively, fully grind and mix them in a corundum mortar, and put in corundum Crucible and fully pre-fired at 800-1000°C, then grind and mix evenly again, put each pot of glass frit in a medium-high temperature furnace at 1450-1600°C for melting, keep warm for 90-120 minutes, and pour the glass liquid in Preheated to a certain temperature on the steel plate grinding tool. After the glass is formed, the glass sample is annealed at 590-620 ° C for 4-6 hours, and then cooled to room temperature with the furnace. Grinding and polishing into 1mm thick glass...

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Abstract

Disclosed are praseodymium-doped borophosphate base near-infrared ultra wide band luminescent glass and a preparation method thereof. The glass comprises 45-83 mol% of P2O5, 5-35 mol% of B2O3, 4-23 mol% of Al2O3, 6-22 mol% of Y2O3 and 0.1-3 mol% of Pr2O3. The preparation method of the glass includes the steps of raw material weighing, presintering, founding, pouring, annealing and the like. The preparation method is simple in process, high in ultra wide band near-infrared fluorescence-emission characteristic with emission wavelength of 830-1700nm and capable of improving the stability of the glass, reinforcing the luminous intensity of praseodymium ions, and satisfying the requirement of optical fiber wiredrawing.

Description

technical field [0001] The invention relates to luminescent glass, in particular to a praseodymium-doped boron phosphate-based near-infrared ultra-broadband luminescent glass and a preparation method thereof. Background technique [0002] In 1985, the University of Southampton in the UK first successfully developed the Erbium-doped Fiber Amplifier (abbreviated as EDFA), which is widely used in the 1.55 micron frequency band in optical fiber communication systems. It is one of the greatest inventions in optical fiber communication. The use of EDFA in DWDM (Dense Wavelength Division Multiplexing) technology has greatly increased the capacity of optical fiber communication, and has become the most widely used optical amplifier in current optical fiber communication. However, the gain bandwidths of erbium-doped fiber amplifiers (EDFA) and other rare earth ion-doped fiber amplifiers widely used in DWDM fiber optic communication systems are in the range of tens of nanometers and t...

Claims

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Application Information

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IPC IPC(8): C03C3/19C03C4/12
Inventor 盛秋春陈丹平沈应龙刘双李文涛王晓琳
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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