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Erbium Ytterbium codoped multi-component oxide glass monomode fiber core glass and method for preparing monomode fiber

A technology of oxide glass and single-mode optical fiber, applied in glass manufacturing equipment, optics, light guides, etc., can solve the problems of complex preparation process, uneven gain spectrum, narrow gain bandwidth, etc., and achieve simple preparation process and good chemical stability and thermal stability, the effect of high glass transition temperature

Inactive Publication Date: 2005-07-06
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0004] The invention solves the technical problems in the background technology that the gain spectrum is not flat enough, the gain bandwidth is narrow, the demand for the growth of the current optical communication transmission network cannot be met, the glass transition temperature is low, the thermal stability is poor, and the preparation process is complicated.

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  • Erbium Ytterbium codoped multi-component oxide glass monomode fiber core glass and method for preparing monomode fiber
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  • Erbium Ytterbium codoped multi-component oxide glass monomode fiber core glass and method for preparing monomode fiber

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0~10(Bi 2 o 3 +La 2 o 3 +Y 2 o 3 =0~20%)

[0033] Others can also be added in the above formula, such as Ta 2 o 3 , GeO 2 and other components, but the total content of the above components is preferably not less than 98mol%.

[0034] SiO 2 and B 2 o 3 As a glass network former, the total content thereof is 20 to 85 mol%. SiO 2 and B 2 o 3 If the content is less than 20mol%, it will devitrify the glass and reduce the chemical stability of the glass. If it exceeds 85mol%, it will increase the high-temperature melting viscosity of the glass, making it difficult to melt the glass, and it will also affect the addition of other components to the glass. . B 2 o 3 The content of more than 15mol%, will reduce the chemical stability of the glass.

[0035] Li 2 The addition of O can increase Er 3+ The dissolution rate, the length of the medium required for the optical signal to achieve a certain gain is very short, which is extremely beneficial for t...

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Abstract

The present invention relates to Erbium Ytterbium codoped multi-component oxide glass monomode fiber core glass and a method for preparing monomode fiber. The core glass comprises SiO2, Al2O3, Li2O, Yb2O3, Er2O3, B2O3, etc. A round bar is made from Erbium-doped glass blank, a core glass is formed by drawing it into a thin round bar; another round bar is made from non-Erbium-doped glass blank, a cladding glass is formed by laser punching it; the thin round bar is placed in the hole of the cladding glass to form an Erbium-doped optical fiber performrod; then a monomode fiber is obtained by drawing the performrod in a wire drawing furnace. The invention solves the problems in the prior art of uneven gain spectrum, narrow gain bandwidth, complicated preparing technology and so on. The Erbium Ytterbium codoped multi-component oxide optical glass fiber can provide transmission bandwidth of 60nm and more even gain spectrum, higher glass transition temperature, better chemical and heat stability, can satisfy the increased requirements of the current optical transmission network.

Description

technical field [0001] The invention relates to an erbium-ytterbium co-doped multi-component oxide glass single-mode optical fiber for optical amplification and a preparation method thereof, and the invention also relates to an erbium-doped optical fiber for a third optical communication window fiber amplifier or a fiber laser and a preparation method thereof . Background technique [0002] Erbium-doped fiber amplifier (EDFA) is widely used in the optical communication field to amplify optical signals in the 1550nm band, wherein the optical amplification medium is an optical fiber doped with erbium ions. However, with the increasing demand for communication services and the rapid increase of Internet information transmission capacity, the information transmission capacity of optical fiber backbone network and optical metropolitan area network is rapidly expanding. The current wavelength division multiplexing (WDM) communication system is difficult to adapt to this demand, D...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/04C03C3/062C03C3/076C03C3/087C03C4/00C03C13/04G02B6/00G02F1/39
CPCC03C13/04C03B37/01211C03B37/01231C03B37/0124C03B2201/10C03B2201/30C03B2201/36C03B2201/50C03C3/062C03C3/068C03C3/095C03C4/00
Inventor 邹快盛陆敏李玮楠
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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