Compositions and preparation method of extra-large mode area metaphosphate optical fiber

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

Inactive Publication Date: 2011-04-27
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 metaphosphate optical fiber, which mainly solves the problem that the optical fiber in the prior art cannot simultaneously satisfy the mode field diameter above 100 μm and the single-mode transmission characteristic

Method used

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  • Compositions and preparation method of extra-large mode area metaphosphate optical fiber
  • Compositions and preparation method of extra-large mode area metaphosphate optical fiber
  • Compositions and preparation method of extra-large mode area metaphosphate optical fiber

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Experimental program
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Embodiment 1

[0052] 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.

[0053] Aluminum oxide, potassium oxide, barium oxide, calcium oxide, and magnesium oxide in the raw materials are all introduced in the form of corresponding metaphosphate, and the purity is greater than 99.6%; the rare earth oxide is any of ytterbium oxide, erbium oxide, neodymium oxide or thulium oxide. As an alternative, ytterbium oxide is the best, with a purity greater than 99.99%. Preparation of Yb by High Temperature Melting Process 3+Doped metaphosphate glass.

[0054] Add 750g of uniformly mixed raw materials into a quartz crucible heated by a silicon carbide rod, the heating temperature is 850°C, and the heating time is 1.0h. The formula is shown in Table 1-1; then pour the melt into a 300ml Pt crucible, The heating temperature is 1000°C, stirring, clarification, and homogenization of the molten glass for 3 hours,...

Embodiment 2

[0060] 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.

[0061] Aluminum oxide, potassium oxide, barium oxide, calcium oxide, and magnesium oxide in the raw materials are all introduced in the form of corresponding metaphosphate, and the purity is greater than 99.6%; the rare earth oxide is any of ytterbium oxide, erbium oxide, neodymium oxide or thulium oxide. As an alternative, ytterbium oxide is the best, with a purity greater than 99.99%. Preparation of Yb by High Temperature Melting Process 3+ Doped metaphosphate glass.

[0062] Add 750g of uniformly mixed raw materials into a quartz crucible heated by a silicon carbide rod, the heating temperature is 900°C, and the heating time is 1.0h. The formula is shown in Table 1-1; then pour the melt into a 300ml Pt crucible, The heating temperature is 1050°C, stirring, clarification, and homogenization of the molten glass for 2.5 hours, ...

Embodiment 3

[0068] combine image 3 A third embodiment of the present invention will be described.

[0069] 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.

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Abstract

The invention provides compositions and a preparation method of an extra-large mode area metaphosphate optical fiber, and belongs to the technical fields of optical materials and laser. The invention solves the problem that an optical fiber cannot meet a mode field with the diameter of over 100 mu m and single-mode transmission characteristic simultaneously in the prior art. The metaphosphate optical fiber comprises a fiber core consisting of phosphorus pentoxide, alumina, potassium oxide, barium oxide, calcium oxide, magnesium oxide and rare earth oxide in a certain molar percent, and a fiber core clad layer consisting of phosphorus pentoxide, alumina, potassium oxide, barium oxide, calcium oxide and magnesium oxide in a certain molar percent. The prepared fiber core preformed rod and clad layer preformed rod are sleeved and fused, and are subjected to surface processing and drawing treatment so as to form the metaphosphate optical fiber. The metaphosphate optical fiber has excellent thermal property, optical property, mechanical property and mechanical performance.

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 a metaphosphate optical fiber with super large modulus area. 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 on...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B1/00C03C13/04C03B37/027
CPCC03B2203/28C03B37/01268C03B2201/70C03C3/17C03C13/048
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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