CN105384351A - Ytterbium-erbium co-doped fluorophosphate glass optical fiber and preparation method thereof - Google Patents
Ytterbium-erbium co-doped fluorophosphate glass optical fiber and preparation method thereof Download PDFInfo
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- CN105384351A CN105384351A CN201510754243.9A CN201510754243A CN105384351A CN 105384351 A CN105384351 A CN 105384351A CN 201510754243 A CN201510754243 A CN 201510754243A CN 105384351 A CN105384351 A CN 105384351A
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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
- C03C13/00—Fibre or filament compositions
- C03C13/04—Fibre optics, e.g. core and clad fibre compositions
- C03C13/048—Silica-free oxide glass compositions
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/01—Manufacture of glass fibres or filaments
- C03B37/012—Manufacture of preforms for drawing fibres or filaments
- C03B37/01265—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt
- C03B37/01268—Manufacture of preforms for drawing fibres or filaments starting entirely or partially from molten glass, e.g. by dipping a preform in a melt by casting
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Abstract
The invention provides a ytterbium-erbium co-doped fluorophosphate glass optical fiber and a preparation method thereof. The optical fiber comprises a fiber core and a cladding, and the fiber core is composed of high-concentration fluorophosphate doped with Er+ and Yb3+ ions. The fiber core is prepared from, by mol, 23-30 mol% of Al(PO3)3, 32-40 mol% of BaF2, 10-15 mol% of CaF2, 11-13 mol% of MgF2, 12-18 mol% of LiF, 0.5-5 mol% of ErF3 and 1-10 mol% of YbF3. The cladding is prepared from, by mol, 23-30 mol% of Al(PO3)3, 32-40 mol% of BaF2, 10-15 mol% of CaF2, 12-16 mol% of MgF2 and 12-18 mol% of LiF. The preparation method includes the following steps of material mixing, fiber core melting, water removing, cladding melting, pouring and optical fiber drawing. The optical fiber has the advantages that fluorophosphate glass has good glass forming ability, a high absorbing and transmitting cross section, large effective fluorescent half-width and long fluorescent life. The fluorophosphate glass co-doped with the Er3+ and Yb3+ ions has the advantages of being large in band width and smooth in gain. The fluorophosphate glass optical fiber has the advantages of being good in forming capacity, good in optical performance and little in transmission loss.
Description
Technical field
The present invention relates to fluorphosphate glass optical fiber, be specifically related to a kind of ytterbium bait and mix fluorphosphate glass optical fiber and preparation method thereof altogether.
Background technology
At present, the loss of silicon fiber drops to below 0.2dB/km, and multiple special fiber emerges in an endless stream, and the optical fiber of doped rare earth element is owing to having light amplification, can meet the requirement of long-haul optical fiber communication network repeater.This optical fiber is for matrix with amorphous substance glass, mix a certain amount of rare earth ion wherein, rare earth ion energy level enriches, and can send multiwave light perhaps, can send the light of different-waveband in different matrix environment, rear-earth-doped glass optical fiber holds out broad prospects.
Summary of the invention
The invention provides a kind of ytterbium bait and mix fluorphosphate glass optical fiber and preparation method thereof altogether.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of ytterbium bait mixes fluorphosphate glass optical fiber altogether, comprise fibre core and covering, described fibre core is made up of the fluorphosphate glass of the Er3+ of high density, Yb3+ ion doping, and the molar constituent of described core materials formula is: the Al (PO3) 3 of 23-30mol%, the BaF2 of 32-40mol%, the LiF of the MgF2 of the CaF2 of 10-15mol%, 11-13mol%, 12-18mol%, the YbF3 of the ErF3 of 0.5-5mol%, 1-10mol%;
The molar constituent of described coverstock formula is: the BaF2 of the Al (PO3) 3,32-40mol% of 23-30mol%, the LiF of the MgF2 of the CaF2 of 10-15mol%, 12-16mol%, 12-18mol%.
A preparation method for fluorphosphate glass optical fiber mixed altogether by ytterbium bait, comprises the following steps:
(1) preparing burden: with Al (PO3) 3, BaF2, CaF2, MgF2, LiF, ErF3, YbF3 for raw material, by the molar constituent in claim 1 than introducing raw material, stirring the admixtion forming fibre core and covering;
(2) melting fibre core: described fibre core admixtion is loaded corundum crucible, and 30-60min founded by the High Temperature Furnaces Heating Apparatus being placed in 950-1100 DEG C, melting 1.0 kilograms of admixtiones; Fibre core liquation after fusing 950-1100 DEG C of clarification 1 hour, then stirs and is at the uniform velocity cooled to 750-800 DEG C in 5 hours, and leaf oar rotating speed is 60-70r/min, after be at the uniform velocity cooled to 730-750 DEG C of insulation 40 minutes;
(3) dewatering process: the fibre core liquation after melting is led to dry gas bubbling;
(4) melting covering: described covering admixtion is loaded corundum crucible, and fusion process is identical with the fusion process of fibre core;
(5) pour into a mould: the covering liquation of 800-1100 DEG C is slowly poured into from stainless steel backform end and is preheating to the stainless steel cylinder mould of 300-450 DEG C in advance, down near full, then fast from the globars electric furnace of 800-1100 DEG C, take out fibre core liquation pour backform into, make it cover cladding glass liquid certain altitude; Cylinder mould vertically and is reposefully mentioned, when cylinder mould is mentioned, the not solidified cladding glass liquid in Tong Mo center will spill down, attracts the center of the core material glass melt injecting tube mould in backform simultaneously, and core material glass and the cladding glass on cylinder mould inwall just constitute double-deck excellent;
After casting complete, the mould with glass melt is put into be heated to together and carries out exact annealing process a little less than the annealing furnace under the glass transformation temperature several years, carry out being incubated about 2 hours, then, be cooled to room temperature with the speed of 2-8 DEG C/h, annealing terminates the rear demoulding, just obtains preform;
(6) fibre-optical drawing: be fixed on by preform on drawing wire machine, at the temperature of 320-400 DEG C, is drawn into optical fiber by this glass optical fiber prefabricating stick.
The invention has the beneficial effects as follows: fluorphosphate glass of the present invention has good glass forming ability, high absorption and emission cross section, wide effective fluorescence halfwidth, long fluorescence lifetime; Er3+, Yb3+ ion mix altogether fluorphosphate glass have band wide, the advantage of flat gain; It is good that fluorozirconate glass fiber has Forming ability, excellent optical performance, the advantage that transmission loss is little.
Embodiment
Embodiment 1:
A kind of ytterbium bait mixes fluorphosphate glass optical fiber altogether, comprise fibre core and covering, described fibre core is made up of the fluorphosphate glass of the Er3+ of high density, Yb3+ ion doping, and the molar constituent of described core materials formula is: the Al (PO3) 3 of 23mol%, the BaF2 of 32mol%, the LiF of the MgF2 of the CaF2 of 10mol%, 11mol%, 12mol%, the YbF3 of the ErF3 of 2mol%, 10mol%;
The molar constituent of described coverstock formula is: the BaF2 of the Al (PO3) 3,32mol% of 23mol%, the LiF of the MgF2 of the CaF2 of 11mol%, 16mol%, 18mol%.
A preparation method for fluorphosphate glass optical fiber mixed altogether by ytterbium bait, comprises the following steps:
(1) preparing burden: with Al (PO3) 3, BaF2, CaF2, MgF2, LiF, ErF3, YbF3 for raw material, by the molar constituent in claim 1 than introducing raw material, stirring the admixtion forming fibre core and covering;
(2) melting fibre core: described fibre core admixtion is loaded corundum crucible, and 30min founded by the High Temperature Furnaces Heating Apparatus being placed in 950 DEG C, melting 1.0 kilograms of admixtiones; Fibre core liquation after fusing 950 DEG C of clarifications 1 hour, then stirs and is at the uniform velocity cooled to 750 DEG C in 5 hours, and leaf oar rotating speed is 60r/min, after be at the uniform velocity cooled to 730 DEG C of insulations 40 minutes;
(3) dewatering process: the fibre core liquation after melting is led to dry gas bubbling;
(4) melting covering: described covering admixtion is loaded corundum crucible, and fusion process is identical with the fusion process of fibre core;
(5) pour into a mould: the covering liquation of 800 DEG C is slowly poured into from stainless steel backform end and is preheating to the stainless steel cylinder mould of 300 DEG C in advance, down near full, then fast from the globars electric furnace of 800 DEG C, take out fibre core liquation pour backform into, make it cover cladding glass liquid certain altitude; Cylinder mould vertically and is reposefully mentioned, when cylinder mould is mentioned, the not solidified cladding glass liquid in Tong Mo center will spill down, attracts the center of the core material glass melt injecting tube mould in backform simultaneously, and core material glass and the cladding glass on cylinder mould inwall just constitute double-deck excellent;
After casting complete, the mould with glass melt is put into be heated to together and carries out exact annealing process a little less than the annealing furnace under the glass transformation temperature several years, carry out being incubated about 2 hours, then, be cooled to room temperature with the speed of 2 DEG C/h, annealing terminates the rear demoulding, just obtains preform;
(6) fibre-optical drawing: be fixed on by preform on drawing wire machine, at the temperature of 320 DEG C, is drawn into optical fiber by this glass optical fiber prefabricating stick.
Embodiment 2:
A kind of ytterbium bait mixes fluorphosphate glass optical fiber altogether, comprise fibre core and covering, described fibre core is made up of the fluorphosphate glass of the Er3+ of high density, Yb3+ ion doping, and the molar constituent of described core materials formula is: the Al (PO3) 3 of 26mol%, the BaF2 of 38mol%, the LiF of the MgF2 of the CaF2 of 12mol%, 10mol%, 12mol%, the YbF3 of the ErF3 of 1mol%, 1mol%;
The molar constituent of described coverstock formula is: the BaF2 of the Al (PO3) 3,36mol% of 26mol%, the LiF of the MgF2 of the CaF2 of 12mol%, 14mol%, 12mol%.
A preparation method for fluorphosphate glass optical fiber mixed altogether by ytterbium bait, comprises the following steps:
(1) preparing burden: with Al (PO3) 3, BaF2, CaF2, MgF2, LiF, ErF3, YbF3 for raw material, by the molar constituent in claim 1 than introducing raw material, stirring the admixtion forming fibre core and covering;
(2) melting fibre core: described fibre core admixtion is loaded corundum crucible, and 45min founded by the High Temperature Furnaces Heating Apparatus being placed in 1000 DEG C, melting 1.0 kilograms of admixtiones; Fibre core liquation after fusing 1000 DEG C of clarifications 1 hour, then stirs and is at the uniform velocity cooled to 780 DEG C in 5 hours, and leaf oar rotating speed is 65r/min, after be at the uniform velocity cooled to 740 DEG C of insulations 40 minutes;
(3) dewatering process: the fibre core liquation after melting is led to dry gas bubbling;
(4) melting covering: described covering admixtion is loaded corundum crucible, and fusion process is identical with the fusion process of fibre core;
(5) pour into a mould: the covering liquation of 950 DEG C is slowly poured into from stainless steel backform end and is preheating to the stainless steel cylinder mould of 375 DEG C in advance, down near full, then fast from the globars electric furnace of 950 DEG C, take out fibre core liquation pour backform into, make it cover cladding glass liquid certain altitude; Cylinder mould vertically and is reposefully mentioned, when cylinder mould is mentioned, the not solidified cladding glass liquid in Tong Mo center will spill down, attracts the center of the core material glass melt injecting tube mould in backform simultaneously, and core material glass and the cladding glass on cylinder mould inwall just constitute double-deck excellent;
After casting complete, the mould with glass melt is put into be heated to together and carries out exact annealing process a little less than the annealing furnace under the glass transformation temperature several years, carry out being incubated about 2 hours, then, be cooled to room temperature with the speed of 5 DEG C/h, annealing terminates the rear demoulding, just obtains preform;
(6) fibre-optical drawing: be fixed on by preform on drawing wire machine, at the temperature of 360 DEG C, is drawn into optical fiber by this glass optical fiber prefabricating stick.
Embodiment 3:
A kind of ytterbium bait mixes fluorphosphate glass optical fiber altogether, comprise fibre core and covering, described fibre core is made up of the fluorphosphate glass of the Er3+ of high density, Yb3+ ion doping, and the molar constituent of described core materials formula is the Al (PO3) 3 of 23mol%, the BaF2 of 32mol%, the LiF of the MgF2 of the CaF2 of 10mol%, 13mol%, 12mol%, the YbF3 of the ErF3 of 5mol%, 5mol%;
The molar constituent of described coverstock formula is: the BaF2 of the Al (PO3) 3,35mol% of 25mol%, the LiF of the MgF2 of the CaF2 of 13mol%, 13mol%, 14mol%.
A preparation method for fluorphosphate glass optical fiber mixed altogether by ytterbium bait, comprises the following steps:
(1) preparing burden: with Al (PO3) 3, BaF2, CaF2, MgF2, LiF, ErF3, YbF3 for raw material, by the molar constituent in claim 1 than introducing raw material, stirring the admixtion forming fibre core and covering;
(2) melting fibre core: described fibre core admixtion is loaded corundum crucible, and 60min founded by the High Temperature Furnaces Heating Apparatus being placed in 1100 DEG C, melting 1.0 kilograms of admixtiones; Fibre core liquation after fusing 1100 DEG C of clarifications 1 hour, then stirs and is at the uniform velocity cooled to 800 DEG C in 5 hours, and leaf oar rotating speed is 70r/min, after be at the uniform velocity cooled to 750 DEG C of insulations 40 minutes;
(3) dewatering process: the fibre core liquation after melting is led to dry gas bubbling;
(4) melting covering: described covering admixtion is loaded corundum crucible, and fusion process is identical with the fusion process of fibre core;
(5) pour into a mould: the covering liquation of 1100 DEG C is slowly poured into the stainless steel cylinder mould of preheating in advance 300-450 DEG C from stainless steel backform end, down near full, then fast from the globars electric furnace of 1100 DEG C, take out fibre core liquation pour backform into, make it cover cladding glass liquid certain altitude; Cylinder mould vertically and is reposefully mentioned, when cylinder mould is mentioned, the not solidified cladding glass liquid in Tong Mo center will spill down, attracts the center of the core material glass melt injecting tube mould in backform simultaneously, and core material glass and the cladding glass on cylinder mould inwall just constitute double-deck excellent;
After casting complete, the mould with glass melt is put into be heated to together and carries out exact annealing process a little less than the annealing furnace under the glass transformation temperature several years, carry out being incubated about 2 hours, then, be cooled to room temperature with the speed of 8 DEG C/h, annealing terminates the rear demoulding, just obtains preform;
(6) fibre-optical drawing: be fixed on by preform on drawing wire machine, at the temperature of 400 DEG C, is drawn into optical fiber by this glass optical fiber prefabricating stick.
Claims (6)
1. a ytterbium bait mixes fluorphosphate glass optical fiber altogether, comprise fibre core and covering, it is characterized in that, described fibre core is by the Er3+ of high density, the fluorphosphate glass of Yb3+ ion doping is formed, the molar constituent of described core materials formula is: the BaF2 of the Al (PO3) 3,32-40mol% of 23-30mol%, the CaF2 of 10-15mol%, the MgF2 of 11-13mol%, the YbF3 of the ErF3 of the LiF of 12-18mol%, 0.5-5mol%, 1-10mol%;
The molar constituent of described coverstock formula is: the BaF2 of the Al (PO3) 3,32-40mol% of 23-30mol%, the LiF of the MgF2 of the CaF2 of 10-15mol%, 12-16mol%, 12-18mol%.
2. a kind of ytterbium bait according to claim 1 mixes fluorphosphate glass optical fiber altogether, it is characterized in that, described fibre core is made up of the fluorphosphate glass of the Er3+ of high density, Yb3+ ion doping, and the molar constituent of described core materials formula is: the Al (PO3) 3 of 23mol%, the BaF2 of 32mol%, the LiF of the MgF2 of the CaF2 of 10mol%, 11mol%, 12mol%, the YbF3 of the ErF3 of 2mol%, 10mol%;
The molar constituent of described coverstock formula is: the BaF2 of the Al (PO3) 3,32mol% of 23mol%, the LiF of the MgF2 of the CaF2 of 11mol%, 16mol%, 18mol%.
3. a kind of ytterbium bait according to claim 1 mixes fluorphosphate glass optical fiber altogether, it is characterized in that, described fibre core is made up of the fluorphosphate glass of the Er3+ of high density, Yb3+ ion doping, and the molar constituent of described core materials formula is: the Al (PO3) 3 of 26mol%, the BaF2 of 38mol%, the LiF of the MgF2 of the CaF2 of 12mol%, 10mol%, 12mol%, the YbF3 of the ErF3 of 1mol%, 1mol%;
The molar constituent of described coverstock formula is: the BaF2 of the Al (PO3) 3,36mol% of 26mol%, the LiF of the MgF2 of the CaF2 of 12mol%, 14mol%, 12mol%.
4. a kind of ytterbium bait according to claim 1 mixes fluorphosphate glass optical fiber altogether, it is characterized in that, described fibre core is made up of the fluorphosphate glass of the Er3+ of high density, Yb3+ ion doping, and the molar constituent of described core materials formula is the Al (PO3) 3 of 23mol%, the BaF2 of 32mol%, the LiF of the MgF2 of the CaF2 of 10mol%, 13mol%, 12mol%, the YbF3 of the ErF3 of 5mol%, 5mol%;
The molar constituent of described coverstock formula is: the BaF2 of the Al (PO3) 3,35mol% of 25mol%, the LiF of the MgF2 of the CaF2 of 13mol%, 13mol%, 14mol%.
5. a preparation method for fluorphosphate glass optical fiber mixed altogether by ytterbium bait, it is characterized in that, comprises the following steps:
(1) preparing burden: with Al (PO3) 3, BaF2, CaF2, MgF2, LiF, ErF3, YbF3 for raw material, by the molar constituent in claim 1 than introducing raw material, stirring the admixtion forming fibre core and covering;
(2) melting fibre core: described fibre core admixtion is loaded corundum crucible, and 30-60min founded by the High Temperature Furnaces Heating Apparatus being placed in 950-1100 DEG C, melting 1.0 kilograms of admixtiones; Fibre core liquation after fusing 950-1100 DEG C of clarification 1 hour, then stirs and is at the uniform velocity cooled to 750-800 DEG C in 5 hours, and leaf oar rotating speed is 60-70r/min, after be at the uniform velocity cooled to 730-750 DEG C of insulation 40 minutes;
(3) dewatering process: the fibre core liquation after melting is led to dry gas bubbling;
(4) melting covering: described covering admixtion is loaded corundum crucible, and fusion process is identical with the fusion process of fibre core;
(5) pour into a mould: the covering liquation of 800-1100 DEG C is slowly poured into from stainless steel backform end and is preheating to the stainless steel cylinder mould of 300-450 DEG C in advance, down near full, then fast from the globars electric furnace of 800-1100 DEG C, take out fibre core liquation pour backform into, make it cover cladding glass liquid certain altitude; Cylinder mould vertically and is reposefully mentioned, when cylinder mould is mentioned, the not solidified cladding glass liquid in Tong Mo center will spill down, attracts the center of the core material glass melt injecting tube mould in backform simultaneously, and core material glass and the cladding glass on cylinder mould inwall just constitute double-deck excellent;
After casting complete, the mould with glass melt is put into be heated to together and carries out exact annealing process a little less than the annealing furnace under the glass transformation temperature several years, carry out being incubated about 2 hours, then, be cooled to room temperature with the speed of 2-8 DEG C/h, annealing terminates the rear demoulding, just obtains preform;
(6) fibre-optical drawing: be fixed on by preform on drawing wire machine, at the temperature of 320-400 DEG C, is drawn into optical fiber by this glass optical fiber prefabricating stick.
6. the preparation method of fluorphosphate glass optical fiber mixed altogether by a kind of ytterbium bait according to claim 5, it is characterized in that, comprises the following steps:
(1) preparing burden: with Al (PO3) 3, BaF2, CaF2, MgF2, LiF, ErF3, YbF3 for raw material, by the molar constituent in claim 1 than introducing raw material, stirring the admixtion forming fibre core and covering;
(2) melting fibre core: described fibre core admixtion is loaded corundum crucible, and 60min founded by the High Temperature Furnaces Heating Apparatus being placed in 1100 DEG C, melting 1.0 kilograms of admixtiones; Fibre core liquation after fusing 1100 DEG C of clarifications 1 hour, then stirs and is at the uniform velocity cooled to 800 DEG C in 5 hours, and leaf oar rotating speed is 70r/min, after be at the uniform velocity cooled to 750 DEG C of insulations 40 minutes;
(3) dewatering process: the fibre core liquation after melting is led to dry gas bubbling;
(4) melting covering: described covering admixtion is loaded corundum crucible, and fusion process is identical with the fusion process of fibre core;
(5) pour into a mould: the covering liquation of 1100 DEG C is slowly poured into the stainless steel cylinder mould of preheating in advance 300-450 DEG C from stainless steel backform end, down near full, then fast from the globars electric furnace of 1100 DEG C, take out fibre core liquation pour backform into, make it cover cladding glass liquid certain altitude; Cylinder mould vertically and is reposefully mentioned, when cylinder mould is mentioned, the not solidified cladding glass liquid in Tong Mo center will spill down, attracts the center of the core material glass melt injecting tube mould in backform simultaneously, and core material glass and the cladding glass on cylinder mould inwall just constitute double-deck excellent;
After casting complete, the mould with glass melt is put into be heated to together and carries out exact annealing process a little less than the annealing furnace under the glass transformation temperature several years, carry out being incubated about 2 hours, then, be cooled to room temperature with the speed of 8 DEG C/h, annealing terminates the rear demoulding, just obtains preform;
(6) fibre-optical drawing: be fixed on by preform on drawing wire machine, at the temperature of 400 DEG C, is drawn into optical fiber by this glass optical fiber prefabricating stick.
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| CN201510754243.9A CN105384351A (en) | 2015-11-09 | 2015-11-09 | Ytterbium-erbium co-doped fluorophosphate glass optical fiber and preparation method thereof |
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| CN201510754243.9A CN105384351A (en) | 2015-11-09 | 2015-11-09 | Ytterbium-erbium co-doped fluorophosphate glass optical fiber and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501669A (en) * | 2021-08-11 | 2021-10-15 | 华南理工大学 | Erbium ytterbium codoped fluorine sulfur phosphate glass single mode fiber and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211872A (en) * | 2011-03-23 | 2011-10-12 | 中国科学院上海光学精密机械研究所 | 3 mu m luminous rare earth ion doped fluorophosphate laser glass and preparation method thereof |
| CN104058596A (en) * | 2014-06-25 | 2014-09-24 | 中国科学院上海光学精密机械研究所 | Ytterbium fluorine phosphorus-phosphate doped heterogeneous optical fiber preform rod glass and preparation method thereof |
-
2015
- 2015-11-09 CN CN201510754243.9A patent/CN105384351A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102211872A (en) * | 2011-03-23 | 2011-10-12 | 中国科学院上海光学精密机械研究所 | 3 mu m luminous rare earth ion doped fluorophosphate laser glass and preparation method thereof |
| CN104058596A (en) * | 2014-06-25 | 2014-09-24 | 中国科学院上海光学精密机械研究所 | Ytterbium fluorine phosphorus-phosphate doped heterogeneous optical fiber preform rod glass and preparation method thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113501669A (en) * | 2021-08-11 | 2021-10-15 | 华南理工大学 | Erbium ytterbium codoped fluorine sulfur phosphate glass single mode fiber and preparation method and application thereof |
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