CN1785866A - Yb3+/Ce3+/Er3+Codoped oxychloride tellurate glass and preparation method thereof - Google Patents
Yb3+/Ce3+/Er3+Codoped oxychloride tellurate glass and preparation method thereof Download PDFInfo
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- CN1785866A CN1785866A CN 200510030730 CN200510030730A CN1785866A CN 1785866 A CN1785866 A CN 1785866A CN 200510030730 CN200510030730 CN 200510030730 CN 200510030730 A CN200510030730 A CN 200510030730A CN 1785866 A CN1785866 A CN 1785866A
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- glass
- oxychloride
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- temperature
- tellurate
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Links
- 239000011521 glass Substances 0.000 title claims abstract description 99
- RCJVRSBWZCNNQT-UHFFFAOYSA-N dichloridooxygen Chemical compound ClOCl RCJVRSBWZCNNQT-UHFFFAOYSA-N 0.000 title claims abstract description 20
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- XHGGEBRKUWZHEK-UHFFFAOYSA-L tellurate Chemical compound [O-][Te]([O-])(=O)=O XHGGEBRKUWZHEK-UHFFFAOYSA-L 0.000 title abstract description 18
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 8
- SITVSCPRJNYAGV-UHFFFAOYSA-L tellurite Chemical compound [O-][Te]([O-])=O SITVSCPRJNYAGV-UHFFFAOYSA-L 0.000 claims description 18
- 238000002156 mixing Methods 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 12
- 230000007704 transition Effects 0.000 claims description 8
- 229910005793 GeO 2 Inorganic materials 0.000 claims description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 6
- 238000005303 weighing Methods 0.000 claims description 6
- 239000000155 melt Substances 0.000 claims description 4
- 238000003723 Smelting Methods 0.000 claims description 3
- 238000000137 annealing Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 230000004927 fusion Effects 0.000 claims description 3
- 229910052751 metal Inorganic materials 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 229910052757 nitrogen Inorganic materials 0.000 claims description 3
- 229910052697 platinum Inorganic materials 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 abstract description 11
- 238000006243 chemical reaction Methods 0.000 abstract description 7
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 7
- 238000002425 crystallisation Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 238000002844 melting Methods 0.000 abstract description 2
- 230000008018 melting Effects 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 abstract 1
- 239000013307 optical fiber Substances 0.000 abstract 1
- 150000002500 ions Chemical class 0.000 description 11
- 239000000835 fiber Substances 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- -1 rare earth ion Chemical class 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004020 luminiscence type Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000010453 quartz Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 229910052797 bismuth Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000005383 fluoride glass Substances 0.000 description 2
- YBMRDBCBODYGJE-UHFFFAOYSA-N germanium oxide Inorganic materials O=[Ge]=O YBMRDBCBODYGJE-UHFFFAOYSA-N 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- PVADDRMAFCOOPC-UHFFFAOYSA-N oxogermanium Chemical compound [Ge]=O PVADDRMAFCOOPC-UHFFFAOYSA-N 0.000 description 2
- 229910052714 tellurium Inorganic materials 0.000 description 2
- PORWMNRCUJJQNO-UHFFFAOYSA-N tellurium atom Chemical group [Te] PORWMNRCUJJQNO-UHFFFAOYSA-N 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000005491 wire drawing Methods 0.000 description 2
- 239000005371 ZBLAN Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- JHXKRIRFYBPWGE-UHFFFAOYSA-K bismuth chloride Chemical compound Cl[Bi](Cl)Cl JHXKRIRFYBPWGE-UHFFFAOYSA-K 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 230000005281 excited state Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 229910000311 lanthanide oxide Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- FXADMRZICBQPQY-UHFFFAOYSA-N orthotelluric acid Chemical compound O[Te](O)(O)(O)(O)O FXADMRZICBQPQY-UHFFFAOYSA-N 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 229910001404 rare earth metal oxide Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001235 sensitizing effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
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- Glass Compositions (AREA)
Abstract
Yb 3+/Ce3+/Er3+The codoped oxychloride tellurate glass and the preparation method thereof, the glass comprises the following components in percentage by mol: 50-80 TeO2、5~35BiCl3、5~20GeO2、3~5Na2O、1~3La2O3、2~5Yb2O3、0.5~0.8Ce2O3、0.5~1Er2O3. The glass of the invention is a multi-rare earth co-doped oxychloride tellurate glass material with high stimulated emission cross section, low visible and near infrared region up-conversion. The tellurate glass prepared by the melting method is transparent, and has good anti-crystallization capacity and excellent physical and chemical properties. Effectively reduces the up-conversion phenomenon, Er, under the condition of 980nm pumping3+The excitation efficiency at 1530nm can be increased by a factor of nearly 3. The glass can be widely applied to optical fiber amplifier systems.
Description
Technical field
The present invention relates to fiber amplifier, is a kind of a kind of Yb that is used for fiber amplifier
3+/ Ce
A+/ Er
3+Oxychloride tellurite glasses of mixing altogether and preparation method thereof.
Background technology
The topmost purposes of fiber amplifier is to amplify at the signal that uses the fluorescence emission of ions with transmission.Emission of ions should occur in in signal has identical operation wavelength zone.Pump energy has excited rare earth ion, makes it send fluorescence, thereby improves optical gain.
Effective fluorescence halfwidth (FWHM) is meant the transverse width of half place's curve of the vertical height of peak of curve in the fluorescence intensity curves.Along with the develop rapidly of computer network and data transmission service, long haul transmission system is growing to the demand that improves data transmission capacity; The conventional quartz erbium-doped fiber amplifier since its amplify bandwidth (~30nm) narrower, can not meet the need of market.
People know, erbium-doped tellurate glass compare with quartz substrate at light the 3rd communication window 1.55 μ m places have broad effective fluorescence halfwidth (referring to U.S.Patent 710961, date of publication on November 14th, 2000, name is called Tellurite glass, optical amplifier, and light source), can satisfy the requirement of bandwidth.But because the phonon energy of tellurate glass is quite low, when using the 980nm pumping, lower phonon energy has limited Er
3+Ion
4I
11/2Energy level with
4I
13/2Transition between the energy level, Er
3+Ion exists
4I
11/2Have the long life-span (~200 μ s) on the energy level, so,
4I
13/2Population accumulation on the energy level is affected.Er
3+Ion
4I
11/2Fluorescence lifetime long on the energy level makes Er
3+Ion is very easy to produce goes up conversion and excited state absorption phenomenon, and this is extremely harmful for fiber amplifier.For reducing to go up the influence of transformation, can carry out direct pumping with 1480nm, but the 1480nm pumping can not obtain signal to noise ratio and population inversion fully preferably.In order to realize that broadband, superpower and lower noise amplify, and should use the 980nm pumping.Therefore, the pumping efficiency of the tellurate glass of raising 980nm pumping is most important.
According to reported in literature, under the 980nm pumping, Yb
3+/ Ce
3+/ Er
3+Mix fluoride glass (ZBLAN) altogether, utilize Ce
3+Have and Er in the ionic band system
3+Identical energy level difference between the ionic 980-1530nm reduces the emission lifetime of 980nm wavelength, increases the population number on the 1530nm, makes Er
3+ 4I
11/2→
4I
13/2The branching ratio of energy level transition obviously strengthens, and can effectively improve Er
3+Fluorescent characteristic at the 1530nm place.But, be difficult to obtain actual application because shortcomings such as fluoride glass has that mechanical strength is low, chemical stability and poor heat stability make it run into very big difficulty when fibre-optical drawing.
Summary of the invention
The objective of the invention is to overcome the difficulty of above-mentioned prior art, a kind of Yb is provided
3+/ Ce
3+/ Er
3+Oxychloride tellurite glasses of mixing altogether and preparation method thereof is the practical application performance of telluric acid alkali glass in fiber amplifier with the pumping efficiency that improves 980nm.
Technical solution of the present invention is as follows:
A kind of Yb
3+/ Ce
3+/ Er
3+The oxychloride tellurite glasses of mixing altogether is characterized in that the molar percentage of this glass consists of:
Form mol%
TeO
2 50~80
BiCl
3、 5~35
GeO
2 5~20
Na
2O 3~5
La
2O
3 1~3
Yb
2O
3 2~5
Ce
2O
3 0.5~0.8
Er
2O
3 0.5~1。
Glass of the present invention is with TeO
2Be the system of main glass-former, its compositing range is 50~80mol%.With TeO
2In the glass for organizer, because tellurium atom has bigger atomic radius, it is strong that its Te-O key that forms with Sauerstoffatom has more weak key than other network organizer atom as: the valence bond of Si, B, P etc. and Sauerstoffatom formation.From the formation theory of glass as can be known: if the phase-splitting or the crystallization of the strong poor excessive or too small glass that all can cause of the key of network outer body and network organizer the glass.In system, add BiCl
3, on the one hand, the Bi atom has bigger atomic radius, the more weak strong and lower maximum phonon energy of M-O key, can with TeO
2There is the glass of broad to form the zone, Cl
-Introducing can effectively remove in the glass the very deleterious [OH of rare earth luminescence
-], the optical quality of raising glass; On the other hand, BiCl
3Have higher specific refractory power, can guarantee Er
3+The stimulated emission cross section that ion is higher can guarantee Er simultaneously
3+Effective bandwidth.
Although these two kinds of components can form glass, the non-constant of the mechanical property of glass and chemical stability.Because bismuth germanate glass has excellent mechanical property, better chemical and thermostability.And can form stable glass with germanium oxide equally for the selected network outer body of tellurate glass.Therefore, germanium oxide is incorporated in the tellurate glass, can melts the interlacing network structure of formation mutually, can improve basic physical properties, particularly thermostability and the mechanical property of glass greatly with tellurium oxide.
Utilize mixed alkali effect equally also can realize the stability of reinforcing glass, above selected network outer body all be the bigger metal ion of atomic radius, add that network organizer atom Te itself also has bigger atomic radius, therefore in above-mentioned glass, exist bigger space, this has reduced the stability of glass, therefore also needs to select the less oxide compound of some atomic radiuses to join as network outer body and makes it form stable network structure in the glass.By component adjustment experiment, the network-modifying ion of the little atomic radius that is added is Li
+, Na
+, K
+, its compositing range is 3~5mol%.
La
2O
3Also be a kind of important stablizer that forms glass, an amount of La
2O
3Adding can improve the stability of glass.The more important thing is, because Yb
2O
3, Er
2O
3, Ce
2O
3All belong to lanthanide oxide, the formation characteristic and the La of its glass
2O
3Much at one, therefore, to rare earth oxide and the La that is added
2O
3Replace, both can guarantee the solvability of the rare earth ion that added, also do not influence the formation situation of glass simultaneously.La in this glass system
2O
3Addition be 1~3mol%.
With existing Er
3+Singly mix the tellurate glass difference, the present invention has adopted Yb
2O
3, Er
2O
3, Ce
2O
3Mix altogether.Wherein, Yb
2O
3Be the effect of sensitizing agent, purpose is to improve Er
3+Assimilated efficiency to pump light.Because quite low (the about 720cm of maximum phonon energy of oxychloride tellurite glasses matrix
-1), cause 980nm to excite Er
3+ 4I
11/2Particle age on the energy level increases, and at Yb
2O
3Sensitization down further on higher energy level transition, this can reduce this energy level greatly to next energy level
4I
11/2Radiationless relaxation, cause
4I
11/2Population number on the energy level reduces, the particle population number on the energy level, thus reduced the emission efficiency of 1530nm wavelength.Because Ce
3+Energy level up and down
2F
7/2With
2F
5/2Difference and Er
3+Two energy levels
4I
11/2With
4I
13/2Difference almost equal, when two kinds of ions exist simultaneously, by the transfer of energy,
, Er
3+ 4I
11/2Particle on the energy level transits to
4I
13/2, while Ce
3+On the ground state
2F
5/2Particle be excited to
2F
7/2Energy level.The result effectively reduces Er
3+ 4I
13/2On life-span, suppressed last conversion, improved
4I
13/2The population number of energy level has increased the pumping efficiency of 980nm.
Yb of the present invention
3+/ Ce
3+/ Er
3+The preparation method of the oxychloride tellurite glasses of mixing altogether comprises the following steps:
1. form by the molar percentage of above-mentioned glass, the total amount of selected composition of raw materials and required preparation glass is calculated and each raw material of weighing;
2. with the highly purified TeO of institute's weighing
2, BiCl
3, GeO
2, Na
2O, La
2O
3, Yb
2O
3, Ce
2O
3, Er
2O
3After dusty raw materials mixes, put into quartz crucible or platinum crucible, found in the globars electric furnace, feed drying nitrogen in the glass smelting process and carry out atmosphere protection, temperature of fusion is 700~850 ℃, treats that raw material melts fully, and clarifies through homogenizing;
3. come out of the stove in 650~800 ℃, glass metal is cast on the swage tool of preheating;
4. rapidly this glass being put into the retort furnace that is warming up to the glass material transition temperature anneals, annealing process is: the transition temperature at this glass material is incubated 2 hours earlier, lower the temperature 100 ℃ with 2~5 ℃/hour speed then, close the retort furnace power supply and be cooled to room temperature automatically.
Show with theoretical analysis that after tested glass of the present invention has following characteristic:
(1) has thermostability preferably, to the temperature range of glass melting, do not occur the crystallization phenomenon in the glass, can satisfy the wire drawing requirement of glass in the wire-drawing temperature scope in room temperature;
(2) by in prescription, adding suitable bismuth chloride, reduce [the OH in the glass system greatly
-] concentration, effectively reduce [OH
-] to the quenching effect of rare earth ion, thus the fluorescence lifetime of rare earth ion effectively improved;
(3) by suitably adjusting rare earth ion Yb
3+, Ce
3+, Er
3+Content, improved Er effectively
3+Ion
4I
13/2The stimulated emission cross section of energy level has been eliminated last conversion phenomena, has improved Er greatly
3+The gain of ion on 1530nm, thus significantly improved the pumping efficiency of 980nm;
(4) Er in this kind glass
3+Gain at the 1530nm place shows it approximately is tellurate glass (75TeO through measurement
2-20ZnO-5Na
2O) 3 times.Thereby make this kind material possess fabulous application prospect in the fiber amplifier field.
Simultaneously, Yb of the present invention
3+/ Ce
3+/ Er
3+The preparation technology of the oxychloride tellurite glasses of mixing altogether is simple, and production cost is also lower.
Description of drawings
Fig. 1 is Yb of the present invention
3+/ Ce
3+/ Er
3+Oxychloride tellurite glasses of mixing altogether (dotted line) and tellurate glass (75TeO
2-20ZnO-5Na
2O) (solid line) Er
3+Stimulated emission cross section relatively.
Fig. 2 is Yb of the present invention
3+/ Ce
3+/ Er
3+Oxychloride tellurite glasses of mixing altogether (dotted line) and tellurate glass (75TeO
2-20ZnO-5Na
2O) comparison of the up-conversion luminescence intensity of (solid line).
Fig. 3 is Yb of the present invention
3+/ Ce
3+/ Er
3+Oxychloride tellurite glasses of mixing altogether (dotted line) and tellurate glass (75TeO
2-20ZnO-5Na
2O) infrared transmission performance of (solid line) relatively.
Embodiment
The invention will be further described below in conjunction with specific embodiment.
Table 1 is that glass of the present invention is formed (mol%)
Table 1
TeO 2 | 50~80 |
BiCl 3 | 5~35 |
GeO 2 | 5~20 |
Na 2O | 3~5 |
La 2O 3 | 1~3 |
Yb 2O 3 | 2~5 |
Ce 2O 3 | 0.5~0.8 |
Er 2O 3 | 0.5~1 |
Table 2 has been listed Yb of the present invention
3+/ Ce
3+/ Er
3+The prescription of 7 groups of specific embodiments of oxychloride tellurite glasses of mixing altogether.
Table 2
Glass ingredient (mol%) | The 1st group | The 2nd group | The 3rd group | The 4th group | The 5th group | The 6th group | The 7th group |
TeO 2 | 80 | 75 | 70 | 65 | 60 | 55 | 50 |
BiCl 3 | 5 | 10 | 10 | 15 | 10 | 25 | 35 |
GeO 2 | 5 | 5 | 8 | 10 | 20 | 10 | 8 |
Na 2O | 3 | 3 | 5 | 5 | 3 | 3 | 3 |
La 2O 3 | 3 | 3 | 2 | 1 | 1 | 1 | 1 |
Yb 2O 3 | 3 | 3 | 4 | 2.5 | 5 | 4.7 | 2 |
Ce 2O 3 | 0.5 | 0.5 | 0.5 | 0.5 | 0.5 | 0.8 | 0.5 |
Er 2O 3 | 0.5 | 0.5 | 0.5 | 1 | 0.5 | 0.5 | 0.5 |
Become the glass situation | Transparent | Transparent | Transparent | Transparent | Transparent | Transparent | Transparent |
Glass transformation temperature (℃) | 334 | 326 | 318 | 321 | 329 | 291 | 276 |
The crystallization starting temperature (℃) | 508 | 505 | 482 | 476 | 491 | 458 | 433 |
Yb of the present invention
3+/ Ce
3+/ Er
3+The preparation method of the oxychloride tellurite glasses of mixing altogether comprises the following steps:
1. total and each raw material of weighing glass of forming selected composition of raw materials (seeing Table 2) and required preparation glass from the molar percentage of the described glass of table 1;
2. with the highly purified TeO of institute's weighing
2, BiCl
3, GeO
2, Na
2O, La
2O
3, Yb
2O
3, Ce
2O
3, Er
2O
3After dusty raw materials mixes, put into platinum crucible, found in the globars electric furnace, feed drying nitrogen in the glass smelting process and carry out atmosphere protection, temperature of fusion is 700~850 ℃, treats that raw material melts fully, and clarifies through homogenizing;
3. come out of the stove in 650~800 ℃, glass metal is cast on the swage tool of preheating;
4. rapidly this glass being put into the retort furnace that is warming up to the glass material transition temperature anneals, annealing process is: the transition temperature at this glass material is incubated 2 hours earlier, lower the temperature 100 ℃ with 2~5 ℃/hour speed then, close the retort furnace power supply and be cooled to room temperature automatically.
The Yb that makes by aforesaid method
3+/ Ce
3+/ Er
3+The oxychloride tellurite glasses of mixing altogether, water white transparency does not have crystallization, and physical and chemical performance is good.Show the poor (T of the minimum temperature of oxychloride tellurite glasses system of the present invention from the DSC temperature data of being surveyed
x-T
g) be 155 ℃, illustrate that body series glass has the anti-crystalline range of broad, the use temperature that can reach practical application requires (>100 ℃).
With existing tellurate glass (75TeO
2-20ZnO-5Na
2O-1Er
2O
3) relatively, the Er of glass of the present invention (is example with the 7th group)
3+Stimulated emission cross section at the 1530nm place improves greatly, approximately is 3 times of (see figure 1)s of tellurate glass; Er
3+Up-conversion luminescence intensity only is about 1/14 (see figure 2) of tellurate glass; And, obviously [OH is arranged at the 3200nm place in the infrared permeation of the tellurate glass spectrum
-] characteristic peak, and oxychloride tellurite glasses of the present invention is not almost seen [OH
-] peak, illustrate that glass ingredient of the present invention has good water removal effect (see figure 3).
Claims (2)
1, a kind of Yb
3+/ Ce
3+/ Er
3+The oxychloride tellurite glasses of mixing altogether is characterized in that the molar percentage of this glass consists of:
Form mol%
TeO
2 50~80
BiCl
3、 5~35
GeO
2 5~20
Na
2O 3~5
La
2O
3 1~3
Yb
2O
3 2~5
Ce
2O
3 0.5~0.8
Er
2O
3 0.5~1。
2, the described Yb of claim 1
3+/ Ce
3+/ Er
3+The preparation method of the oxychloride tellurite glasses of mixing altogether is characterized in that comprising the following steps:
1. total amount and each raw material of weighing of forming selected composition of raw materials and required preparation glass by the molar percentage of the described glass of claim 1;
2. with the highly purified TeO of institute's weighing
2, BiCl
3, GeO
2, Na
2O, La
2O
3, Yb
2O
3, Ce
2O
3, Er
2O
3After dusty raw materials mixes, put into platinum crucible, found in the globars electric furnace, feed drying nitrogen in the glass smelting process and carry out atmosphere protection, temperature of fusion is 700~850 ℃, treats that raw material melts fully, and clarifies through homogenizing;
3. come out of the stove in 650~800 ℃, glass metal is cast on the swage tool of preheating;
4. rapidly this glass being put into the retort furnace that is warming up to the glass material transition temperature anneals, annealing process is: the transition temperature at this glass material is incubated 2 hours earlier, lower the temperature 100 ℃ with 2~5 ℃/hour speed then, close the retort furnace power supply and be cooled to room temperature automatically.
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CNB2005100307307A CN1321924C (en) | 2005-10-27 | 2005-10-27 | Yb3+/Ce3+/Er3+Codoped oxychloride tellurate glass and preparation method thereof |
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CN1321924C CN1321924C (en) | 2007-06-20 |
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EP1284247B1 (en) * | 1997-02-14 | 2004-08-11 | Nippon Telegraph and Telephone Corporation | Tellurite glass, optical amplifier and light source |
GB9914549D0 (en) * | 1999-06-23 | 1999-08-25 | Univ Leeds | A wide band optical amplifier |
JP2004244280A (en) * | 2003-02-14 | 2004-09-02 | Nippon Telegr & Teleph Corp <Ntt> | Tellurite glass and optical amplifier using tellurite glass |
CN1233580C (en) * | 2004-11-05 | 2005-12-28 | 中国科学院上海光学精密机械研究所 | Tm3+/Yb3+Codoped oxyfluoride tellurate glass and preparation method thereof |
CN1262504C (en) * | 2004-12-02 | 2006-07-05 | 中国科学院上海光学精密机械研究所 | Er3+/Yb3+Co-doped oxychloride tellurate glass and preparation method thereof |
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CN101812299A (en) * | 2010-04-23 | 2010-08-25 | 同济大学 | Nanocrystal reinforced rare earth doped tellurate luminous film material and preparation method thereof |
CN101812299B (en) * | 2010-04-23 | 2013-03-13 | 同济大学 | Nanocrystal reinforced rare earth doped tellurate luminous film material and preparation method thereof |
CN103011593A (en) * | 2013-01-17 | 2013-04-03 | 中国科学院上海光学精密机械研究所 | Erbium neodymium ion co-doped tellurium fluoride glass for emitting 2.7 microns of intermediate infrared light |
CN105271730A (en) * | 2015-10-20 | 2016-01-27 | 宁波大学 | Multicolor-emitting tellurium bismuth titanium glass and preparation method thereof |
CN112321154A (en) * | 2020-12-16 | 2021-02-05 | 中国计量大学 | Low-phonon-energy high-erbium-doped intermediate infrared laser glass and preparation method thereof |
CN112979168A (en) * | 2021-04-27 | 2021-06-18 | 山东墨匠新材料科技有限公司 | High-elasticity-modulus glass fiber composition and preparation method thereof |
CN112979168B (en) * | 2021-04-27 | 2021-07-13 | 山东墨匠新材料科技有限公司 | High-elasticity-modulus glass fiber composition and preparation method thereof |
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