CN86105801A - Ultraviolet irradiation sensitive optical fibre and irradiatometer - Google Patents

Ultraviolet irradiation sensitive optical fibre and irradiatometer Download PDF

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Publication number
CN86105801A
CN86105801A CN198686105801A CN86105801A CN86105801A CN 86105801 A CN86105801 A CN 86105801A CN 198686105801 A CN198686105801 A CN 198686105801A CN 86105801 A CN86105801 A CN 86105801A CN 86105801 A CN86105801 A CN 86105801A
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China
Prior art keywords
ultraviolet
optical fiber
ultraviolet irradiation
irradiation
sensitive
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CN198686105801A
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Chinese (zh)
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CN86105801B (en
Inventor
李林
顾真安
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Quartz Glass Inst Building Materials Science Research Inst State Bureau Of B
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Quartz Glass Inst Building Materials Science Research Inst State Bureau Of B
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Priority to CN86105801A priority Critical patent/CN86105801B/en
Publication of CN86105801A publication Critical patent/CN86105801A/en
Publication of CN86105801B publication Critical patent/CN86105801B/en
Expired 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
    • C03C3/04—Glass compositions containing silica
    • C03C3/06—Glass compositions containing silica with more than 90% silica by weight, e.g. quartz
    • 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
    • C03C13/045—Silica-containing oxide glass compositions
    • 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
    • C03C4/00—Compositions for glass with special properties
    • C03C4/12—Compositions for glass with special properties for luminescent glass; for fluorescent glass
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/31—Doped silica-based glasses containing metals 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/34—Doped silica-based glasses containing metals containing rare earth metals
    • C03C2201/3447—Europium
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/34—Doped silica-based glasses containing metals containing rare earth metals
    • C03C2201/3458—Terbium
    • 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
    • C03C2201/00—Glass compositions
    • C03C2201/06—Doped silica-based glasses
    • C03C2201/30—Doped silica-based glasses containing metals
    • C03C2201/34—Doped silica-based glasses containing metals containing rare earth metals
    • C03C2201/36—Doped silica-based glasses containing metals containing rare earth metals containing rare earth metals and aluminium, e.g. Er-Al co-doped

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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)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Glass Compositions (AREA)

Abstract

The ultraviolet irradiation sensitive optical fibre utilizes fluorescent glass to produce this characteristics design of fluorescence under ultraviolet irradiation and makes.The core of optical fiber is by anti-irradiation, and optical homogeneity is good, and the material that fluorescence conversion efficiency is high is made, and the wrapper layer of optical fiber is by anti-irradiation, and the material of saturating ultraviolet, stable performance is made.With the ultraviolet irradiation sensitive optical fibre is the ultraviolet radiation meter that sensitive element is made, according to the amplification detection circuit that low-voltage and medium voltage sterilization mercury lamp characteristics design is made, have highly sensitive, the characteristics that the interference of visible light and infrared light is little.

Description

The invention relates to optical fiber, is the ultraviolet radiation meter of sensitive element particularly to the optical fiber of ultraviolet irradiation sensitivity, and with this optical fiber.
United States Patent (USP) 4403826 is pointed out, mixes the communication silica fibre of germanium, phosphorus, and its core can produce fluorescence under ultraviolet irradiation, but the fluorescence of germanium, phosphorus is purple, and it is only to one section sensitivity in the ultraviolet band, and does not match with the silicon photocell response spectrum.With this optical fiber is the ultraviolet irradiation detecting device that sensitive element is made, and can not get rid of the interference of visible light and infrared light.
Russian Patent 709573 has proposed to mix the fluorescence quartz glass of europium, aluminium, and this glass also can produce fluorescence under ultraviolet irradiation, but this glass optics lack of homogeneity, should not be as the core of ultraviolet irradiation sensitive optical fibre.
Purpose of the present invention is that to make a kind of ultraviolet irradiation sensitive band wide, conversion efficiency height, and the low ultraviolet irradiation sensitive optical fibre of cost and be sensitive element with this optical fiber, the ultraviolet radiation meter of making.
The ultraviolet irradiation sensitive optical fibre utilizes fluorescent glass to produce this characteristics design of fluorescence under ultraviolet irradiation and makes.The core of optical fiber is good by anti-irradiation, optical homogeneity, and the fluorescent optics quartz glass that fluorescence conversion efficiency is high is made, and it is composed as follows: (percent by weight).
1.Eu 2O 30.02～0.50
Al 2O 30.01～0.20
SiO 299.30～99.77
2.Eu 2O 30.02～0.50
Al 2O 30.01～0.20
GeO 20.50～10.00
SiO 289.30～99.47
3.Eu 2O 30.02～0.50
Al 2O 30.01～0.20
Tb 2O 30.10～1.00
SiO 298.30～99.87
Eu 2O 3Absorption peak is at long wave ultraviolet region, GeO 2And Tb 2O 3Absorption peak at shortwave ultraviolet region, Al 2O 3Can improve the fluorescence conversion efficiency of glass.
The wrapper layer of ultraviolet irradiation sensitive optical fibre is a kind of ultraviolet and radiotolerant material, when needing the good bending property of optical fiber, and the available silicon rubber coating; If emphasize radiation-resistant property, then available quartz glass, or fiber cores is enclosed in the uv-transmitting sleeve pipe, be wrapper layer with vacuum, blanket gas or liquid, in wrapper layer, can also mix some ray filtering materials, to reduce the interference of visible light and infrared light.Available ultraviolet-transmitting and absorb the glass of visible light and infrared light, or organic coating is a wrapper layer.
With reference to the accompanying drawings the present invention is illustrated.
Shown in figure one, wrapper layer (11) is passed in ultraviolet ray, absorbed by the active ions in the fiber cores (12), and convert it into visible fluorescence, launch to all directions, wherein a part of fluorescence is subjected to wrapper layer and repeatedly reflects, export from optical fiber end, increased the length that is exposed under the ultraviolet irradiation, thereby increased the fluorescence intensity of optical fiber end output, therefore, this ultraviolet sensitivity optical fiber can be with more weak ultraviolet irradiation, convert stronger fluorescence output to, have amplification.
The core of optical fiber is a multilayered structure, and shown in figure two, it is made up of wrapper layer (11) and outer core (22) and internal layer core (23), adjusts the concentration of ectonexine active ions, can regulate the sensitive property of optical fiber to different-waveband.For example: the glass of the outer core (22) of optical fiber consists of GeO 25.00, SiO 295.00, (percent by weight), internal layer core (23) is Eu 2O 30.05, Al 2O 30.05, GeO 25,00, SiO 294.90, (percent by weight).This optical fiber has higher susceptibility to short wave ultraviolet.
With ultraviolet irradiation sensitive optical fibre of the present invention is the ultraviolet radiation meter that sensitive element is made, and shown in figure three, it is by ultraviolet sensitivity probe (31), photoelectric commutator (32), and amplifying display (33) three parts are formed.
Ultraviolet sensitivity probe (31), be the ultraviolet sensitivity optical fiber of one section annular, two ends of optical fiber all join with photoelectric commutator, like this, can prevent that on the one hand visible light, infrared light from injecting from the end, reduce and disturb that the fluorescence because of two ends outputs of optical fiber is identical on the other hand, can make output signal strengthen one times, thereby improve sensitivity.
Low-voltage and medium voltage ultraviolet-sterilization mercury lamp, it is a kind of widely used ultraviolet radiation source, the uitraviolet intensity of its radiation is to change in the cycle, the frequency that changes is two times of mains frequency, the light of sunshine and other light source does not then have this cycle to change, utilize this characteristic, just fluorescence and the stray light that ultraviolet irradiation produces can be distinguished; Reduced interference.
There is one in the photoelectric commutator (32) to the sensitive photo-electric conversion element of light intensity, the fluorescence signal that it will change in the cycle, convert the current signal that the cycle changes to, through filtering, filter direct current component, send into AC amplifier, demonstrate the intensity of AC signal, demarcate irradiatometer with ultraviolet intensity by amplifying display (33).Photoelectric commutator (32), can pop one's head in ultraviolet sensitivity (31) are combined, also can and amplifying display (33) combine.
In order to improve the sensitivity of optical fiber, the ultraviolet irradiation sensitive optical fibre can be scratched into a few, and the core diameter of optical fiber is from 50 microns to 1 millimeter.
Example 1: the consisting of of ultraviolet irradiation sensitive optical fibre core:
Eu 2O 30.15, Al 2O 30.10, SiO 299.75(percent by weight), this optical fiber is applicable to the ultraviolet irradiation of measuring singlet, or the long wave ultraviolet irradiation.
Example 2: the consisting of of ultraviolet irradiation sensitive optical fibre core:
Eu 2O 30.05, Al 2O 30.05, GeO 25.00, SiO 294.90, (percent by weight), this optical fiber is applicable to the test of all band ultraviolet irradiation intensity, increases GeO 2Content, can improve the absorptivity of shortwave ultraviolet irradiation, thereby improve fluorescence output.
Example 3: the consisting of of ultraviolet irradiation sensitive optical fibre core:
Eu 2O 30.05, Al 2O 30.05, Tb 2O 30.50 SiO 299.40(percent by weight), this optical fiber is applicable to the strength test of all band ultraviolet irradiation, compares with example 2, and it has the low characteristics of cost, but the interference of visible light is big.
The drawing explanation:
Figure one is a ultraviolet irradiation sensitive optical fibre schematic diagram.
Figure two is the sandwich construction synoptic diagram of ultraviolet irradiation sensitive optical fibre core.
Figure three is the ultraviolet radiation meter block diagram
Legend: (11) optical fibre packages cortex
(12) fiber cores
(22) the outer core of optical fiber
(23) the internal layer core of optical fiber
(31) ultraviolet sensitivity probe
(32) photoelectric commutator
(33) amplifying display

Claims (5)

1, ultraviolet irradiation sensitive optical fibre is characterized in that: the core of optical fiber is that radiotolerant fluorescent optics quartz glass is made, and the wrapper layer of optical fiber is anti-irradiation, and saturating ultraviolet and the material that has selection to absorb are made.
2, optical fiber as claimed in claim 1 is characterized in that: fiber cores composed as follows:
(percent by weight)
（1.）Eu 2O 30.02-0.50，Al 2O 30.01～0.20，
SiO 299.30-99.97
（2.）Eu 2O 20.02-0.50，Al 2O 30.01～0.20，
GeO 20.50-10.00，SiO 289.30～99.47
（3.）Eu 2O 30.02-0.50，Al 2O 30.01～0.20，
Tb 2O 30.1-1.00 SiO 298.30～99.87
3, optical fiber as claimed in claim 1 is characterized in that: fiber cores is a sandwich construction.
4, the application of optical fiber as claimed in claim 1 is characterized in that: with one section optical fibre ring is sensitive element, the ultraviolet radiation meter that ultraviolet sensitivity probe that two ends of optical fiber all join with photoelectric commutator and photoelectric commutator and amplifying display are formed.
5, ultraviolet radiation meter as claimed in claim 4 is characterized in that: the cycle according to low-voltage and medium voltage ultraviolet-sterilization mercury lamp irradiation changes, and the interchange opto-electronic conversion of making exchanges amplification, display system.
CN86105801A 1986-08-05 1986-08-05 Uv sensitive optical fibre and uv irradiation meter Expired CN86105801B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN86105801A CN86105801B (en) 1986-08-05 1986-08-05 Uv sensitive optical fibre and uv irradiation meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN86105801A CN86105801B (en) 1986-08-05 1986-08-05 Uv sensitive optical fibre and uv irradiation meter

Publications (2)

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CN86105801A true CN86105801A (en) 1988-02-10
CN86105801B CN86105801B (en) 1988-03-23

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CN86105801A Expired CN86105801B (en) 1986-08-05 1986-08-05 Uv sensitive optical fibre and uv irradiation meter

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110132322A (en) * 2019-04-08 2019-08-16 东莞理工学院 A kind of ultraviolet irradiation enhanced fiber sensor and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110132322A (en) * 2019-04-08 2019-08-16 东莞理工学院 A kind of ultraviolet irradiation enhanced fiber sensor and preparation method thereof

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CN86105801B (en) 1988-03-23

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