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Method for preparing high-purity chalcogenide glass for optical fiber

A high-purity sulfur and glass technology, applied in glass manufacturing equipment, glass molding, glass furnace equipment, etc., can solve the problems that cannot be completely removed, fail to reach the theoretical minimum loss value, limit the application of high-purity chalcogenide glass, and achieve High purity, effect of guaranteed purity

Active Publication Date: 2017-07-07
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method has the disadvantage that oxygen impurities and hydroxyl impurities cannot be completely removed in the purification of arsenic sulfide glass and arsenic selenide glass.
[0006] Therefore, although low-loss high-purity chalcogenide glass has made some progress in the past few decades, it is far from reaching its theoretical minimum loss value, which limits the application of high-purity chalcogenide glass to a certain extent.

Method used

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  • Method for preparing high-purity chalcogenide glass for optical fiber
  • Method for preparing high-purity chalcogenide glass for optical fiber
  • Method for preparing high-purity chalcogenide glass for optical fiber

Examples

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Embodiment 1

[0049] In Example 1, the elemental raw materials used for preparing chalcogenide glass are As and S, respectively, and the high-purity chalcogenide glass to be prepared is As 2 S 3 Glass rod, As 2 S 3 The diameter of the glass rod is 10 mm.

[0050] Specifically, the medium and high-purity chalcogenide glass As in Example 1 2 S 3 The preparation method comprises the following steps:

[0051] Step 1, select seven quartz ampoules, a quartz glass tube 8 and seven porous quartz filters 9 that are all lower than 1ppm in hydroxyl content; the inner diameter of the quartz glass tube is 10mm, so that the inner diameter of the quartz glass tube is equal to 2 S 3 The diameters of the glass rods are matched; the seven quartz ampoules include the first quartz ampoule 1, the second quartz ampoule 2, the third quartz ampoule 3, the fourth quartz ampoule 4, the fifth quartz ampoule 5, the sixth quartz ampoule Quartz ampoule bottle 6 and the seventh quartz ampoule bottle 7; the second ...

Embodiment 2

[0077] In the second embodiment, the raw materials used for preparing chalcogenide glass are As and Se respectively, and the high-purity chalcogenide glass to be prepared is As 2 Se 3 Glass rod, As 2 Se 3 The diameter of the glass rod is 15 mm.

[0078] Specifically, the high-purity chalcogenide glass As in the second embodiment 2 Se 3 The preparation method comprises the following steps:

[0079] Step 1, select for use seven quartz ampoules, a quartz glass tube 8 and seven porous quartz filters 9 that are all lower than 1ppm in hydroxyl content; the inner diameter of the quartz glass tube 8 is 15mm, so that the inner diameter of the quartz glass tube is the same as the one to be prepared. As 2 Se 3 The diameters of the glass rods are matched; the seven quartz ampoules include the first quartz ampoule 1, the second quartz ampoule 2, the third quartz ampoule 3, the fourth quartz ampoule 4, the fifth quartz ampoule 5, the sixth quartz ampoule Quartz ampoule bottle 6 and ...

Embodiment 3

[0105] In the third embodiment, the raw materials used for preparing chalcogenide glass are As, S and Se respectively, and the high-purity chalcogenide glass to be prepared is As 40 S 59 Se 1 Glass rod, As 40 S 59 Se 1 The diameter of the glass rod is 20 mm.

[0106] Specifically, the high-purity chalcogenide glass As in Example 3 40 S 59 Se 1 The preparation method comprises the following steps:

[0107] Step 1, select seven quartz ampoules, a quartz glass tube 8 and seven porous quartz filters 9 that are all lower than 1ppm in hydroxyl content; the inner diameter of the quartz glass tube is 20mm, so that the inner diameter of the quartz glass tube and the 40 S 59 Se 1 The diameters of the glass rods are matched; the seven quartz ampoules include the first quartz ampoule 1, the second quartz ampoule 2, the third quartz ampoule 3, the fourth quartz ampoule 4, the fifth quartz ampoule 5, the sixth quartz ampoule Quartz ampoule bottle 6 and the seventh quartz ampoule ...

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Abstract

The invention relates to a method for preparing high-purity chalcogenide glass for optical fiber. According to the method, single raw materials for preparing a chalcogenide glass product are subjected to three times of dynamic full distillation, a deoxidant and a dehydrogenation agent are uniformly doped, then impurities such as moisture and oxides in different single raw materials can be removed at an early stage of melting, high purity of the single raw materials for melting can be ensured, and furthermore the purity of a chalcogenide glass product obtained later can be ensured; after the chalcogenide glass product is prepared preliminarily, two times of dynamic full distillation and one time of sealed distillation purification are implemented on the preliminarily prepared chalcogenide glass product in quartz ampoule bottles, then influence of impurities upon the purity of the obtained chalcogenide glass product is further eliminated, finally the purified chalcogenide glass is molten, and thus a high-purity chalcogenide glass rod product can be prepared.

Description

technical field [0001] The invention relates to the field of preparation of chalcogenide glass, in particular to a preparation method of high-purity chalcogenide glass for optical fibers. Background technique [0002] Chalcogenide glass is an amorphous glass formed by introducing elements such as sulfur (S), selenium (Se) or tellurium (Te) in the sixth main group (VIA) elements of the periodic table, and introducing a certain amount of other metal or non-metal elements. state material. Chalcogenide glass has a long infrared cutoff wavelength and excellent refractive index thermal difference (dn / dT) performance. Optical fibers made of chalcogenide glass are good infrared light transmission media. The intrinsic loss of these chalcogenide glass fibers Low, good flexibility, good chemical stability, can work in the wavelength range of 1 ~ 12μm. However, so far, the lowest loss in the chalcogenide glass fibers prepared by the prior art is still lower than the theoretical value ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C1/02C03B8/02C03B19/12C03B5/173C03B5/235C03B37/012
CPCC03B5/173C03B5/235C03B19/12C03B37/01265C03C1/02
Inventor 许银生杨磊戴世勋唐俊州张培晴王训四刘自军
Owner NINGBO UNIV
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