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Bi2O3/GeO2 glass with ultra-wideband near infrared luminescence function and fabrication method

A near-infrared and ultra-broadband technology, applied in the field of broadband near-infrared luminescent glass, can solve the problem of low Bi ion doping concentration

Inactive Publication Date: 2013-04-17
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problem of low doping concentration of Bi ions in the prior art, the present invention is based on the above technical and research background, and is committed to providing a Bi-containing matrix suitable for LD pumping, covering the near-infrared human eye-safe band and the optical communication band. Infrared broadband luminescent glass material, as well as glass preparation method and glass growth process parameters to make it have high luminous efficiency

Method used

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  • Bi2O3/GeO2 glass with ultra-wideband near infrared luminescence function and fabrication method
  • Bi2O3/GeO2 glass with ultra-wideband near infrared luminescence function and fabrication method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Example 1: Preparation of 10Bi by Melting and Quenching 2 o 3 / 90GeO 2 Glass

[0025] Step 1, using Bi 2 o 3 and GeO 2 As a raw material, according to the molar ratio Bi 2 o 3 : GeO 2 =1 : 9 Make the ingredients, mix them evenly and press them into blocks, then put them into a platinum crucible with a platinum sheet as a cover.

[0026] Step 2: Put the platinum crucible filled with raw materials into the furnace. The heating element of the muffle furnace is a silicon carbide rod. The heating rate is 120°C / h, the temperature of the chemical material is 1150°C, and the holding time is 30 minutes.

[0027] Step 3: Pour the melted raw material in the crucible into a preheated metal copper mold, and cool it to room temperature by air to prepare a glass sample.

[0028] In step 4, the prepared glass sample is annealed, the annealing temperature is 500° C., the annealing time is 10 h, and the annealing atmosphere is air.

Embodiment 2

[0029] Example 2: Preparation of 15Bi by Melting and Quenching 2 o 3 / 85GeO 2 Glass

[0030] Step 1, using Bi 2 o 3 and GeO 2 As a raw material, according to the molar ratio Bi 2 o 3 : GeO 2 =1.5 : 8.5 Prepare the ingredients, mix them evenly and press them into blocks, then put them into a platinum crucible with a platinum sheet as a cover.

[0031] Step 2: Put the platinum crucible filled with raw materials into the furnace. The heating element of the muffle furnace is a silicon carbide rod. The heating rate is 150°C / h, the temperature of the chemical material is 1100°C, and the holding time is 25 minutes.

[0032] Step 3: Pour the melted raw material in the crucible into a preheated metal copper mold, and air cool to room temperature to prepare a glass sample.

Embodiment 3

[0033] Example 3: Preparation of 20Bi by Melting and Quenching 2 o 3 / 80GeO 2 Glass

[0034] Step 1, using Bi 2 o 3 and GeO 2 As a raw material, according to the molar ratio Bi 2 o 3 : GeO2=2 : 8 Make the ingredients, mix them evenly and press them into blocks, then put them into an alumina crucible with an alumina sheet as a cover.

[0035] Step 2: Put the alumina crucible filled with raw materials into the furnace. The heating element of the muffle furnace is a silicon carbide rod. The heating rate is 100°C / h, the temperature of the chemical material is 1100°C, and the holding time is 30 minutes.

[0036]Step 3: Pour the melted raw materials in the crucible into a preheated platinum mold, and air cool to room temperature to prepare a glass sample.

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Abstract

The invention relates to a base near infrared broadband luminescent glass material consisting of a Bi2O3 / GeO2 binary system. The luminous range is 1,000-1,600nm; the central wavelength is 1,300nm; a weak fluorescent shoulder is at 1,060nm; the fluorescent full width at half maximum (FWHM) is greater than 217nm; and the life of 1,300nm reaches 406 microseconds. An excitation spectrum of an absorption and fluorescence peak of a glass system is located at 500-1,000nm, and a mature laser diode (LD) can well serve as a pumping source. Therefore, the Bi2O3 / GeO2 binary glass system has application potential in optical fiber communication signal amplifiers, human eye safety lasers, tunable and ultrashort pulse all-solid-state lasers and the like. A fabrication method of the glass system has the advantages that the molar ratio of Bi2O3 can be changed within 1at.%-40at.%, and a higher Bi2O3 content can be achieved.

Description

technical field [0001] The invention relates to a broadband near-infrared luminescent glass, in particular to a laser glass based on a main group metal Bi oxide and a preparation method of the glass with high-efficiency near-infrared broadband luminous properties. Background technique [0002] Broadband near-infrared luminescence can be applied to optical amplifiers (such as WDM amplifiers in the communication field), eye-safe lasers, continuous and femtosecond lasers, remote sensing, air detection, medical lasers, and laser guide star adaptive optics systems (Laser guide star adaptive optics, LGS AO), etc., so it has attracted the attention of researchers at home and abroad. [0003] In 1999, Japanese scientists Murata and Fujimoto reported for the first time that SiO doped with Bi ions 2 A broadband near-infrared luminescence of 1000-1600 nm appeared in the glass, with a peak at 1150nm, FWHM> 200nm, τ=650μs. Its emission spectrum width is much larger than that of Er i...

Claims

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Application Information

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IPC IPC(8): C03C3/253
Inventor 唐慧丽蒋先涛苏良碧范晓徐军
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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