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Bismuth doped phosphosilicate glass and method of producing the same

An optical glass and phosphor-doped technology, applied in the field of optical glass, can solve the problems of reduced transmittance and limited practical application, etc.

Inactive Publication Date: 2009-08-19
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2001, Fujimoto and Nakatsuka reported in the article Jpn.J.App.Phys., 40, (2001) L279 that the pentavalent bismuth ion Bi was prepared under air at a high temperature of 1760°C 5+ Doped Al 2 o 3 -SiO 2 Glass, the existence of a large number of bubbles reduces its transmittance in the infrared region to ~30%, which largely limits the SiO 2 Practical Applications of Base Glass

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Mole percent composition of glass: 73ZnO-10P 2 o 5 -15SiO2 2 -3.24CaO-0.1Bi 2 o 3 (the sum after adding should be equal to 100); Dissolve ethyl orthosilicate in an appropriate amount of ethanol, ammonium dihydrogen phosphate and citric acid with 2 times the molar amount of the metal ion are dissolved in distilled water respectively, zinc oxide and calcium oxide are dissolved in 1 :1 nitric acid, Bi 2 o 3 Dissolve in concentrated nitric acid, then mix the above liquids under the condition of stirring, adjust the pH=1 after stirring for 1 hour, continue stirring for 1 hour to form a sol, put it in a water bath at 80°C for sol-gel reaction for 10 hours, and form a gel , placed in an oven at 100°C for drying, then placed in an alumina crucible and treated at a constant temperature of 1400°C for 2 hours to melt the raw material into a liquid state so as to completely eliminate air bubbles, then quickly pour the melt on a stainless steel plate and use another steel plate...

Embodiment 2

[0021] Mole percent composition of glass: 65ZnO-20P 2 o 5 -10SiO 2 -4MgO-1Bi 2 o 3 Dissolve ethyl orthosilicate in an appropriate amount of ethanol, ammonium dihydrogen phosphate and citric acid with 2 times the molar weight of metal ions are dissolved in distilled water respectively, zinc oxide and calcium oxide are dissolved in nitric acid of 1:1 respectively, Bi 2 o 3 Dissolve in concentrated nitric acid, then mix the above liquids under the condition of stirring, adjust the pH=0.5 after stirring for 1 hour, continue stirring for 1 hour to form a sol, put it in a 90°C water bath for 8 hours for sol-gel reaction, and form a gel , placed in an oven at 100°C for drying, then placed in an alumina crucible and treated at a constant temperature of 1400°C for 2 hours to melt the raw material into a liquid state so as to completely eliminate air bubbles, then quickly pour the melt on a stainless steel plate and use another steel plate Flatten, anneal at 450°C for half an hour,...

Embodiment 3

[0023] (1), according to molar percentage composition: 75ZnO-10P 2 o 5 -10SiO 2 -1BaO-5Bi 2 o 3 (the sum after adding should be equal to 100), take by weighing 20g of raw materials altogether, and after the above-mentioned raw materials are ground and mixed evenly, put in the corundum crucible;

[0024] (2) Put the above-mentioned alumina crucible in a high-temperature box furnace at a constant temperature of 1500°C for 0.5 hours to melt the raw material into a liquid state so as to completely eliminate air bubbles, and then quickly pour the melt on a stainless steel plate and flattened with another steel plate, transferred to an annealing furnace and annealed at 450°C for 3 hours, then naturally cooled to room temperature with the furnace, and then taken out to obtain a bismuth-doped strontium aluminum boron glass with infrared ultra-broadband luminescence properties. Fluorescence will be generated under 800nm ​​laser pumping, the fluorescence center is located near 1300n...

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Abstract

The invention provides bismuth doped phosphorus silicate zinc acid-based optical glass and a preparation method thereof. The bismuth doped phosphorus silicate zinc acid-based optical glass is characterized in that: the bismuth doped phosphorus silicate zinc acid-based optical glass comprises the following glass substrates in mol percentage: 80 to 65 mol percent of ZnO, 5 to 45 percent of P2O5, 10 to 35 mol percent of SiO2, 0 to 10 mol percent of RO and 0.1 to 5 mol percent of Bi2O3, wherein RO is one of magnesia, calcium oxide, strontia and baryta. Compared with the quartz glass, the glass has an obviously reduced fusion temperature, and has an ultra-broadband optical property covering 1,000 to 1,600 nm communication wavebands. The glass is expected to be applied in the technical fields of ultra-broadband optical amplifiers, high-power lasers, tunable lasers, and the like.

Description

technical field [0001] The invention relates to an optical glass, especially a bismuth-doped phosphosilicate-zinc acid-based optical glass, which can emit fluorescence in the near-infrared communication band, has a long fluorescence lifetime, and a wide gain bandwidth, and is suitable for use as a gain medium in an optical amplifier and / or lasers. Background technique [0002] On March 4, 1998, Yasushi Fujimoto of Mitsubishi Cable Industries Co., Ltd. applied for a patent entitled "Manufacturing Method of Doped Quartz Glass, Optical Fiber and Optical Amplifier" (Patent Publication No. 11-29334). They used bismuth-exchanged zeolite as a dispersion medium, combined the sol-gel method and high-temperature melting method, and prepared bismuth-doped bismuth ions in air. 5+ The corresponding optical fiber was drawn out of quartz glass, and the optical amplification at 1.3 μm under 800nm ​​pumping was realized. The fluorescence peak of this glass is located near 1130nm, the maxim...

Claims

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Application Information

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IPC IPC(8): C03C3/062
Inventor 邱建备宋志国
Owner KUNMING UNIV OF SCI & TECH
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