Composition of super large mode area silicate fiber and method of producing the same

A silicate and optical fiber technology, applied in clad optical fiber, glass manufacturing equipment, optics, etc., can solve the problem that the optical fiber cannot meet the mode field diameter of 100 μm or more and single-mode transmission characteristics at the same time, and achieve the effect of excellent thermal performance

Inactive Publication Date: 2013-06-19
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The invention provides a composition and a preparation method of an ultra-large mode area silicate optical fiber, which mainly solves the problem that the optical fiber in the prior art cannot satisfy the mode field diameter of more than 100 μm and the single-mode transmission characteristics at the same time

Method used

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  • Composition of super large mode area silicate fiber and method of producing the same
  • Composition of super large mode area silicate fiber and method of producing the same
  • Composition of super large mode area silicate fiber and method of producing the same

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Experimental program
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Effect test

Embodiment 1

[0083] According to the structural characteristics of GG+IAG optical fiber, take the first group of formulas in Table 1-1 and Table 1-2 for processing.

[0084] In the raw materials, silicon oxide, aluminum oxide, and lead oxide are introduced in the form of oxides, boron oxide is introduced in boric acid, potassium oxide is introduced in potassium nitrate, and the purity of each oxide or compound is greater than 99.6%; the purity of lanthanum oxide and yttrium oxide is greater than 99.99%, The rare earth oxide is any one of ytterbium oxide, erbium oxide, neodymium oxide or thulium oxide, preferably ytterbium oxide, with a purity greater than 99.99%. Yb3+ doped silicate glass was prepared by high temperature melting process.

[0085] After mixing the raw materials evenly, add them to the quartz crucible and heat them one by one. The heating temperature is 910°C and the heating time is 1.0h, and then pour the melt into the Pt crucible for heating. , clarification, and homogeni...

Embodiment 2

[0091] According to the structural characteristics of GG+IAG optical fiber, take the sixth group formula in Table 1-1 and Table 1-2 for processing.

[0092] In the raw materials, silicon oxide, aluminum oxide, and lead oxide are introduced in the form of oxides, boron oxide is introduced in boric acid, potassium oxide is introduced in potassium nitrate, and the purity of each oxide or compound is greater than 99.6%; the purity of lanthanum oxide and yttrium oxide is greater than 99.99%, The rare earth oxide is any one of ytterbium oxide, erbium oxide, neodymium oxide or thulium oxide, preferably ytterbium oxide, with a purity greater than 99.99%. Yb3+ doped silicate glass was prepared by high temperature melting process.

[0093] After mixing the raw materials evenly, add them to the quartz crucible and heat them one by one. The heating temperature is 940°C and the heating time is 1.5h, and then pour the melt into the Pt crucible for heating. , clarification, and homogenizati...

Embodiment 3

[0099] According to the structural characteristics of GG+IAG optical fiber, take the formula of Group 10 in Table 1-1 and Table 1-2 for processing.

[0100] In the raw materials, silicon oxide, aluminum oxide, and lead oxide are introduced in the form of oxides, boron oxide is introduced in boric acid, potassium oxide is introduced in potassium nitrate, and the purity of each oxide or compound is greater than 99.6%; the purity of lanthanum oxide and yttrium oxide is greater than 99.99%, The rare earth oxide is any one of ytterbium oxide, erbium oxide, neodymium oxide or thulium oxide, preferably ytterbium oxide, with a purity greater than 99.99%. Yb3+ doped silicate glass was prepared by high temperature melting process.

[0101] After mixing the raw materials evenly, add them to the quartz crucible and heat them one by one. The heating temperature is 960°C and the heating time is 1.5h, and then pour the melt into the Pt crucible for heating. , clarification, and homogenizati...

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Abstract

The present invention provides a composition of a super large mode area silicate fiber and a method of producing the same, the super large mode area silicate fiber mainly comprises a fiber core of a fiber part and a fiber cladding part. The formula of the super large mode area silicate fiber includes silicon oxide, boron oxide, alumina, leadoxide, kali, lanthana, yttrium oxide and rare earth oxide, wherein the structure of the super large mode area silicate fiber is gain-guided and index-antiguided; the diameter of the gain-guided and index-antiguided fiber core is greater than the diameter of a common single-mode fiber core (4 to 10 mum); the area of the mode field can reach up to more than 10,000 square micrometers; the core diameter ranges from 100 mum to 500 mum; the cladding is composed of multi-component glass, wherein the diameter of the cladding ranges from 250 mum to 650 mum; and the refractivity between the fiber core and the cladding is delta n < 0.05% - 0.28%. The embodiment of the invention solves the problem that the diameter of the mode field can be greater than 100 mum and satisfies the single mode transmission characteristic.

Description

technical field [0001] The invention belongs to the field of optical materials and laser technology, and in particular relates to the composition and preparation method of an ultra-large modulus area silicate optical fiber. Background technique [0002] High-power fiber amplifiers and lasers are widely used in laser processing and other fields. Under high-power pumping, when the fiber core diameter is small, the fiber core and fiber end face are prone to catastrophic optical damage; when the fiber core diameter is large, the fiber due to stimulated Raman scattering and stimulated Brillouin scattering Serious nonlinear effects will be produced, which will affect the beam quality of the laser output. [0003] Using optical fiber combining technology or large mode field fiber can theoretically avoid the constraints caused by the above factors, but the core diameter of the step-type large mode field fiber that has been realized so far for single-mode laser output is only 40 μm,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B1/00G02B6/02C03B37/012
Inventor 彭波陆敏李玮楠邹快盛赵卫韦玮段开椋魏德亮王建民杨炳云
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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