CN1597584A - Tellurate glass and its application - Google Patents

Tellurate glass and its application Download PDF

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Publication number
CN1597584A
CN1597584A CN 200410051090 CN200410051090A CN1597584A CN 1597584 A CN1597584 A CN 1597584A CN 200410051090 CN200410051090 CN 200410051090 CN 200410051090 A CN200410051090 A CN 200410051090A CN 1597584 A CN1597584 A CN 1597584A
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CN
China
Prior art keywords
glass
tellurate
tellurate glass
erbium
holmium
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN 200410051090
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Chinese (zh)
Inventor
姜中宏
刘粤惠
陈东丹
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South China University of Technology SCUT
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South China University of Technology SCUT
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Filing date
Publication date
Application filed by South China University of Technology SCUT filed Critical South China University of Technology SCUT
Priority to CN 200410051090 priority Critical patent/CN1597584A/en
Publication of CN1597584A publication Critical patent/CN1597584A/en
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/253—Silica-free oxide glass compositions containing germanium
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/12—Silica-free oxide glass compositions
    • C03C3/122—Silica-free oxide glass compositions containing oxides of As, Sb, Bi, Mo, W, V, Te as glass formers

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Lasers (AREA)
  • Glass Compositions (AREA)

Abstract

A tellurate glass with excellent chemical stability is disclosed, which can be used to fusion-cast glass and draw optical fibre used for preparing optical fibre amplifier and laser device.

Description

A kind of tellurate glass and application thereof
Technical field
The present invention relates to a kind of thermodynamic stability different tellurate glass of fine quality, the invention still further relates to the application of this tellurate glass in fiber amplifier and laser apparatus.
Background technology
Erbium-doped fiber amplifier EDFA (Er 3+Doped Fiber Amplifier) be the vitals in the Fiber Optical Communication System, its principle is to utilize the amplification of erbium ion luminous realization optical transmission signal of (being C-band) in the 1520-1560 zone, this amplification mode has substituted traditional light/electricity/light amplification mode, has realized the lower noise and the high gain amplification of flashlight.Current, along with communication, signal processing and computer network develop to heavy body, high-speed direction, long haul transmission system is growing to the demand that improves wavelength-division multiplex system WDM (Wavelength Division Multiplexing) transmission capacity.Obtaining business-like EDFA at present all is matrix basically with the quartz, the EDFA of this quartz substrate can only be operated in C-band, in order to increase the transmission capacity of wdm system, must increase the amplification bandwidth of EDFA, it is expanded to L-band (1570-1620nm) by C-band.In addition, other rare earth ion such as Tm 3+, Pr 3+Adulterated substrate material is owing to can realize that optical signal has also caused very big attention in the amplification of S-band (1470-1510nm) scope.Erbium-doped tellurate glass has the fluorescence halfwidth (FWHM=65nm) of bigger stimulated emission cross section and broad at optical communication the 3rd window 1.5um place, be to substitute quartz optical fiber, realize the ideal material that broadband and high gain are amplified, become the important component part of broadband glass Active Optical Fiber research in the optical communication field.But tellurate glass optical fiber ubiquity glass heat mechanical stability is relatively poor at present, is easy to generate devitrification of glass or divides to equate microdefect, causes problems such as glass optical fiber fragility is big, easy fracture.The thermodynamic stability quality of tellurate glass material directly influences the physical strength of the optical fiber that is drawn and the size of interior lights transmission loss thereof.So, prepare tellurate glass with good optical properties and thermostability, be the key of such fiber amplifier practicability.
Summary of the invention
The objective of the invention is at the deficiencies in the prior art, a kind of novel tellurate glass with excellent heat mechanical stability matter is provided, the present invention can overcome the deficiency of conventional tellurate glass aspect thermodynamic stability.
Another object of the present invention is tellurate glass is applied to fiber amplifier and laser apparatus aspect.
For achieving the above object, the present invention has taked following technical scheme:
A kind of tellurate glass in molar percentage, comprises following material:
TeO 2 70～90
ZnO 0～30
Nb 2O 5 0～15
The oxide compound 0.01～10 of erbium, thulium or holmium
La 2O 3 0～5
TiO 2 0～5
R 2O 0～10
GeO 2 0～5
MO 0～15；
Wherein R is a basic metal, as lithium, sodium or potassium.
M is an alkaline-earth metal, as magnesium or barium.
The oxide compound of erbium, thulium or holmium is as Erbium trioxide, trioxide or Holmium trioxide.
As a kind of preferred, tellurate glass in molar percentage, comprises following material:
TeO 2 70～90
ZnO 0.1～25
Nb 2O 5 0～15
The oxide compound 0.01～10 of erbium, thulium or holmium
La 2O 3 0～5
TiO 2 0～5
R 2O 0～15
GeO 2 0～3
MO 0～15；
Preferred as another, tellurate glass in molar percentage, comprises following material:
TeO 2 70～90
ZnO 0～30
Nb 2O 5 0.1～15
The oxide compound 0.01～10 of erbium, thulium or holmium
La 2O 3 0～5
TiO 2 0～5
R 2O 0～15
GeO 2 0～3
MO 0～15；
As preferred plan, tellurate glass in molar percentage, comprises following material:
TeO 2 70～90
ZnO 1～20
Nb 2O 5 1～10
The oxide compound 0.01～8 of erbium, thulium or holmium
La 2O 3 1～5
TiO 2 1～5
R 2O 1～15
GeO 2 1～3
MO 1～10；
According to purpose of the present invention, this glass is with TeO 2Be the system of glass-former, its compositing range is 60～90mol%.Glass intermediate ZnO compositing range 0～30mol%.Also contain the Nb that compositing range is 0～15mol% in the glass 2O 5+ La 2O 3, 0～5mol%TiO 2In order to anti-crystallization ability that improves glass and the coefficient of expansion and the specific refractory power of adjusting glass.The GeO of 0～5mol% 2, in order to improve the glass forming ability of glass.In addition, the R of 0～15mol% 2O+MO is in order to adjust the coefficient of expansion and the softening temperature of glass.
For the loss that the impurity that reduces as far as possible in the frit causes, the glass preparation desired raw material is analytical pure (＞99.9%).
The glass smelting process is as follows: at first take by weighing certain compound with ordinary method according to certain proportioning.Basic metal and alkaline-earth metal are introduced with the form of carbonate, and other component all adds with described form.Compound stirs, and puts into platinum alloy crucible then, crucible is put into 800～900 ℃ globars electric furnace and is founded, and melting time is 30～60 minutes.Then the glass melting liquid of making is poured on the swage of prior preheating, after cooling glass is annealed to room temperature near its transition temperature.
By said ratio is obtained tellurate glass is applied to fiber amplifier and laser apparatus aspect, can obtains effect preferably.
Compared with the prior art, the present invention has following beneficial effect:
Novel tellurate glass of the present invention has excellent thermostability, has very wide operating temperature range, so the crystallization of glass and the phenomenon of phase-splitting do not occur in whole glass smelting and glass optical fiber drawing process.And have excellent mechanical intensity, help processing and the preparation of glass fiber amplifier and laser apparatus with glass optical fiber.
Description of drawings
The differential thermal curve of the tellurate glass that Fig. 1 makes for embodiment 1 (DAT curve).
Embodiment
The invention will be further described below in conjunction with specific embodiment and Figure of description.
Embodiment 1
A kind of tellurate glass in molar percentage, comprises following material:
TeO 2 70
ZnO 20
Nb 2O 5 8
K 2O 2
The preparation method of glass is the routine techniques in the technology of the present invention field as described in the specification sheets, and those skilled in the art all can better grasp, following examples with.
Embodiment 2
Tellurate glass in molar percentage, comprises following material:
TeO 2 90
Nb 2O 5 10
Embodiment 3
Tellurate glass in molar percentage, comprises following material:
TeO 2 80
ZnO 10
Nb 2O 5 10
Embodiment 4
Tellurate glass in molar percentage, comprises following material:
TeO 2 70
ZnO 8
Nb 2O 5 5
BaO 11
Na 2O 4
Li 2O 2。
Table 1 is the physical function parameter of embodiment 1～4 prepared glass:
Table 1
Fig. 1 is the comparison diagram of the differential thermal curve of tellurate glass of the present invention and differential thermal analysis curve and prior art alkali-zinc-tellurate glass, and temperature rise rate is 10 ℃/min.
Among Fig. 1, curve A is the differential thermal curve of known alkali-zinc-tellurate glass, and curve B is the differential thermal curve of the typical niobium-zinc of the present invention's (embodiment 1 makes)-tellurate.Clearly, tangible crystallization peak does not appear in curve B, and therefore, the Thermodynamically stable sex index is higher.In addition, tellurate glass glass of the present invention is incubated 3 hours under the temperature that is higher than 50 ℃ of softening temperatures, the crystallization phenomenon does not appear in glass, shows that the thermodynamic stability of this glass is good, and this is the present invention typical case and important feature.
Novel tellurate glass of the present invention is because of the index T of its thermostability x-T gValue is greater than 100 ℃, and recrystallization temperature T xCorresponding crystallization peak is very weak, and thermal expansivity is little, so this glass system has excellent thermodynamic stability, can overcome the deficiency of conventional tellurate glass aspect thermodynamic stability, the crystallization that can avoid the glass forming process to occur.The thermal expansivity of this glass system and refractive index value are easy to regulate and mate with required glass optical fiber core material.In addition, novel tellurate glass of the present invention is big to the meltage of rare earth ion, and when dissolving in 0.01～10mol% Erbium trioxide or trioxide respectively, FWHM is all greater than 68nm.So novel tellurate glass of the present invention is the preferred glass material that is applied to fiber amplifier and laser apparatus usefulness optical fiber.

Claims (5)

1, a kind of tellurate glass is characterized in that in molar percentage, and is composed as follows:
TeO 2 70～90
ZnO 0～30
Nb 2O 5 0～15
The oxide compound 0.01～10 of erbium, thulium or holmium
La 2O 3 0～5
TiO 2 0～5
R 2O 0～10
GeO 2 0～5
MO 0～15；
Wherein: R is lithium, sodium or potassium;
M is magnesium or barium;
The oxide compound of erbium, thulium or holmium is Erbium trioxide, trioxide or Holmium trioxide.
2, according to the tellurate glass under the claim 1, it is characterized in that in molar percentage, composed as follows:
TeO 2 70～90
ZnO 0.1～25
Nb 2O 5 0～15
The oxide compound 0.01～10 of erbium, thulium or holmium
La 2O 3 0～5
TiO 2 0～5
R 2O 0～15
GeO 2 0～3
MO 0～15。
3, according to the tellurate glass under the claim 1, it is characterized in that in molar percentage, composed as follows:
TeO 2 70～90
ZnO 0～30
Nb 2O 5 0.1～15
The oxide compound 0.01～10 of erbium, thulium or holmium
La 2O 3 0～5
TiO 2 0～5
R 2O 0～15
GeO 2 0～3
MO 0～15。
4, tellurate glass according to claim 1 is characterized in that in molar percentage, and is composed as follows:
TeO 2 70～90
ZnO 1～20
Nb 2O 5 1～10
The oxide compound 0.01～8 of erbium, thulium or holmium
La 2O 3 1～5
TiO 2 1～5
R 2O 1～15
GeO 2 1～3
MO 1～10。
5, each described tellurate glass application in fiber amplifier and laser apparatus in the claim 1～4.
CN 200410051090 2004-08-16 2004-08-16 Tellurate glass and its application Pending CN1597584A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200410051090 CN1597584A (en) 2004-08-16 2004-08-16 Tellurate glass and its application

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200410051090 CN1597584A (en) 2004-08-16 2004-08-16 Tellurate glass and its application

Publications (1)

Publication Number Publication Date
CN1597584A true CN1597584A (en) 2005-03-23

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Country Status (1)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102898024A (en) * 2012-09-27 2013-01-30 广东风华高新科技股份有限公司 Tellurium-containing glass material and preparation method and application thereof
CN101646630B (en) * 2007-06-27 2014-06-18 株式会社尼康 Glass composition and optical member and optical instrument using the same
CN118373589A (en) * 2024-04-29 2024-07-23 长春理工大学中山研究院 Tellurate glass, and preparation method and application thereof
CN118373589B (en) * 2024-04-29 2024-10-29 长春理工大学中山研究院 Tellurate glass, and preparation method and application thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101646630B (en) * 2007-06-27 2014-06-18 株式会社尼康 Glass composition and optical member and optical instrument using the same
CN102898024A (en) * 2012-09-27 2013-01-30 广东风华高新科技股份有限公司 Tellurium-containing glass material and preparation method and application thereof
CN118373589A (en) * 2024-04-29 2024-07-23 长春理工大学中山研究院 Tellurate glass, and preparation method and application thereof
CN118373589B (en) * 2024-04-29 2024-10-29 长春理工大学中山研究院 Tellurate glass, and preparation method and application thereof

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