WO2002053507A1 - Verre pour fibres optiques ou guides d'ondes optiques, fibres optiques ou guides d'ondes optiques constitues d'un tel verre et amplificateur optique comprenant de tels elements - Google Patents

Verre pour fibres optiques ou guides d'ondes optiques, fibres optiques ou guides d'ondes optiques constitues d'un tel verre et amplificateur optique comprenant de tels elements Download PDF

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Publication number
WO2002053507A1
WO2002053507A1 PCT/CN2001/001644 CN0101644W WO02053507A1 WO 2002053507 A1 WO2002053507 A1 WO 2002053507A1 CN 0101644 W CN0101644 W CN 0101644W WO 02053507 A1 WO02053507 A1 WO 02053507A1
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WIPO (PCT)
Prior art keywords
glass
optical
waveguides
fiber
optical fibers
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PCT/CN2001/001644
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English (en)
Chinese (zh)
Inventor
Bo Peng
Original Assignee
Bo Peng
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Publication of WO2002053507A1 publication Critical patent/WO2002053507A1/fr

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/02—Optical fibres with cladding with or without a coating

Definitions

  • the present invention relates to glass for an optical fiber or an optical waveguide, an optical fiber or an optical waveguide made of the glass, and an optical amplifier using the optical fiber or the optical waveguide.
  • the fluorescence lifetime of the ⁇ 4 1 11/2 level is too long, so most of the excited energy absorbed by the sensitizer ⁇ is absorbed by the excited state absorption (ESA) of the ⁇ 4 1 11/2 level, instead of ⁇ 4 1 13/2 energy level to 4 1 15/2 energy level radiation migration.
  • ESA excited state absorption
  • W0 / 00-23392 proposed to add B 2 0 3 in the glass system, and use the multiphonic lattice vibration energy of B 2 0 3 larger than quartz to reduce the ⁇ 4 1 1 1/2 energy level. Fluorescence lifetime, but in principle it is going back. Although some other elements such as Tb, Ho, Tm, Nd, Dy, En, etc.
  • thorium may also be used as an attenuator in principle, but their absorption around 2900nm is not strong enough. As the glass composition of different substrates changes, its absorption wavelength also changes accordingly. Since thorium does not have a sensitization effect on the energy transmission of thorium, thorium and other elements, it will have a large negative effect, so it is also unfavorable to use the sensitizer at the same time. See USP-5251062, JP11-236240, JP11- 228182, W0 / 00-23392. The excited state absorption (ESA) problem of ⁇ 4 1 11/2 energy level and the new contradiction between ⁇ and sensitizer ⁇ have not been solved well.
  • ESA excited state absorption
  • the purpose of the present invention is to provide a glass for an optical fiber or an optical waveguide, an optical fiber or an optical waveguide, and an optical amplifier using these components, so as to solve the problem of excited state absorption (ESA) of the ⁇ 4 1 11/2 energy level and ⁇ A new contradiction with sensitizer ⁇ reduces the excited state absorption (ESA) of ⁇ 4 1 11/2 energy level and improves the amplification efficiency and bandwidth of the optical amplifier.
  • ESA excited state absorption
  • the 0H group has a very strong absorption near 2900nm, and the absorption is very close to the energy level difference between the ⁇ 4 1 11/2 energy level to the 4 1 13/2 energy level, and the principle of cross relaxation is used to make Photons excited to the ⁇ 4 1 11/2 energy level move quickly and non-radiatively to the 4 1 13/2 energy level instead of transitioning to excited state absorption (ESA) to 4 F 7 / by the bait 4 1 11/2 energy level 2 energy levels to solve the excited state absorption (ESA) problem of the ⁇ 4 1 11/2 energy level (see Figure 1) and improve the amplification efficiency and bandwidth of the optical amplifier.
  • ESA excited state absorption
  • sensitizer ⁇ After solving the problem of excited state absorption (ESA) at the ⁇ 4 1 11/2 energy level, the addition of sensitizer ⁇ increased the absorption efficiency of the system.
  • the invention provides a heavy metal oxide erbium-doped glass for an optical fiber or an optical waveguide.
  • the glass contains 60-89 wt% of any one or more heavy metal oxides selected from Te, Bi, Se, Pb, and Sb. , Wherein the content of Er 2 0 3 is 0.05 to 10 wt%, and 0.5 ⁇ of the 0 ⁇ group is incorporated as an attenuator.
  • the glass can also be added with its oxide as 0.5-9.95 wt%, preferably 0.5-9.95 wt% of rhenium as a sensitizer, at this time the content of rhenium is 10 as its oxide -X wt%, where X is the content of rhenium.
  • the present invention also provides an optical fiber or an optical waveguide made of the above-mentioned heavy metal oxide erbium-doped glass.
  • the glass contains 60-89 wt% of any one selected from Te, Bi, Se, Pb, and Sb. Or multiple heavy metal oxides, wherein the content of Er 2 0 3 is 0.05 to 10 wt%, and 0.5H 11H group is doped as an attenuator.
  • the glass can also be added with its oxide It is counted as 0.5-9.95 wt%, preferably 0.5-9.95 wt% of rhenium as a sensitizer, at this time the content of rhenium is 10-X wt% in terms of its oxide, where X is The content of radon.
  • the present invention further provides an optical amplifier, which includes an optical isolator, wavelength division multiplexing, a quartz fiber for connection, an erbium-doped fiber, a signal detector, and a fiber laser.
  • the erbium-doped fiber is made of the heavy metal oxide as described above.
  • 05-10 Made of erbium-doped glass, the glass contains 60-89wt% of any one or more heavy metal oxides selected from Te, Bi, Se, Pb, Sb, wherein the content of Er 2 0 3 is 0.05 to 10 wt%, and 0.5 to 11% of 0H group is incorporated as an attenuator.
  • the glass can also be added with 0.5 to 9.95 wt%, preferably 0.5 to 9.95 wt% of gadolinium as a sensitizer, and the content of gadolinium is 10 in terms of its oxide. -X wt%, where X is the content of rhenium.
  • the present invention provides a heavy metal oxide erbium-doped glass for an optical fiber or an optical waveguide.
  • the glass contains 60-89wt% of any one or more selected from Te, Bi, Se, Pb, and Sb, wherein Er
  • the content of 2 0 3 is 0.05 to 10 wt%.
  • 95 wt% of gadolinium is used as a sensitizer to improve the amplification efficiency and bandwidth of the optical amplifier.
  • the content of gadolinium is 10-X wt% based on its oxide, Where X is the content of rhenium. Where the content of rhenium is less than 0.5 wt%, the effect is not ideal, and higher than 9. 95 wt% will cause glass instability.
  • the above-mentioned heavy metal oxide erbium-doped glass is used as a raw material to prepare the optical fiber or optical waveguide of the present invention.
  • the optical amplifier of the present invention includes an optical isolator, a wavelength division multiplexing, a quartz fiber for connection, an erbium-doped fiber, a signal detector, and a fiber laser.
  • the erbium-doped fiber is made of the heavy metal oxide erbium-doped glass as a raw material as described above. the glass containing 60-89 wt% selected from Te, any one of Bi, Se, Pb, Sb or more heavy metal oxide, wherein the content of Er 2 0 3 0. 05-10 wt%, was added to 5-11 wt% of various oxides are incorporated as hydroxides as an attenuator of the OH group.
  • the glass may also be added in an amount of 0.5 to 9.95 wt% based on its oxide, preferably 0.5 9. 95 wt% of scandium is used as a sensitizer. At this time, the content of scandium is 10-X wt% in terms of its oxide, where X is the content of scandium (see Figure 2).
  • Figure 1 shows the energy levels of Yb 3+ and Er 3+ spectra.
  • Figure 2 is a schematic diagram of the structure of an optical amplifier. Among them, 1 signal, 2 optical isolator, 3 semiconductor fiber laser, 4 wavelength division multiplexing, 5 quartz fiber, 6 erbium-doped fiber of the present invention, 7 quartz fiber, 8 optical isolator, 9 signal detector.
  • Figure 3 shows the structure of an optical fiber. Among them, 10 cores, 11 skins.
  • Fig. 4 is a fluorescence spectrum diagram of europium in Examples 1 and 3 and ordinary quartz.
  • FIG. 5 is a signal gain of the first embodiment.
  • FIG. 6 is a noise signal of the first embodiment.
  • the embodiments exemplified below are intended to better illustrate the effects of the present invention, but not to limit the present invention.
  • 6 wt%, ⁇ 4.0 wt% doped bismuth glass is used as the core glass to draw an optical fiber, and the composition of the glass is Bi 2 0 3 76. 5 wt%, Si0 2 4. 9 wt% , W0 3 4. 4 wt%, Ga 2 0 3 7. 6 wt%, Al 2 0 3 2. 0 wt% [where A1 2 0 3 is introduced as A1 (0H) 3 ], Er 2 0 3 0.6 wt%, Yb 2 0 3 4.0 wt%. 5% ⁇
  • the drawn fiber is taken as 50cm as an optical amplifier, the specific refractive index difference of the fiber is 1. 5%. Cut off wavelength is 960nm.
  • the schematic diagram of the optical amplifier is shown in Figure 2. All connections are optically polished and fixed with optical adhesives to reduce light loss. When excited with a 150mW semiconductor fiber laser, a flat signal amplification of 24dB is obtained in a wide-area wavelength from 1525nm to 1630nm. The deviation is 2dB and the noise signal is less than 5dB.
  • Comparative Example 1 and Example 1 were the same as Example 1 except that no 0H group was added when the core glass was made (the oxide was not introduced as a hydroxide).
  • 14dB flat signal amplification is obtained in a wide-area wavelength from 1525nm to 1630nm. It can be seen that adding the 0H base can increase the wide area signal by 10dB.
  • the optical waveguide length is 30cm. All connections are optically polished and fixed with optical adhesives to reduce light loss. Use a three-position micro-adjustment stage to adjust the position of the optical waveguide.
  • a flat signal amplification of 22dB is obtained in a wide-area wavelength from 1525nm to 1630nm.
  • the deviation is 2dB, and the noise signal is less than 5dB.
  • Comparative Example 2 and Example 2 were the same as Example 2 except that no 0H group was added when the core glass plate was made (the oxide was not introduced as a hydroxide).
  • a flat signal amplification of l ldB is obtained in a wide area wavelength from 1525nm to 1630nm.
  • the drawn fiber is taken as 50cm as an optical amplifier, the specific refractive index difference of the fiber is 1. 5%.
  • the cut-off wavelength is 960nm.
  • the schematic diagram of the optical amplifier is shown in Figure 2.
  • All connections are optically polished and fixed with optical adhesives to reduce light loss.
  • a flat-band signal amplification of 25dB is obtained in a wide range of wavelengths from 1525nm to 1630nm.
  • the deviation is 2dB and the noise signal is less than 5dB.
  • Comparative Example 3 and Example 3 were the same as Example 3 except that no 0H group was added when the core glass was made (the oxide was not introduced as a hydroxide).
  • 14dB flat signal amplification is obtained in a wide-area wavelength from 1525nm to 1630nm. It can be seen that adding 0H base can increase the wide area signal by l l dB.
  • All connections are optically polished and fixed with optical adhesives to reduce light loss.
  • a flat signal amplification of 22dB is obtained in a wide-area wavelength from 1525nm to 1630nm.
  • the deviation is 2dB, and the noise signal is less than 5dB.
  • Comparative Example 4 and Example 4 were the same as Example 4 except that no 0H group was added when the core glass plate was made (the oxide was not introduced as a hydroxide).
  • a flat signal amplification of l ldB is obtained in a wide area wavelength from 1525nm to 1630nm.
  • doped antimony (Te) glass was used as the core glass to make optical samarium.
  • the composition of antimony (Te) glass was Te0 2 54. 4 wt%, W0 3 24.8 wt%, Li 2 0 13. 9 wt%, PbO 3. 9 wt%, Na 2 0 2. 0 wt% (where Na 2 0 is introduced as NaOH), Er 2 0 3 1. 0 wt L Take the drawn fiber as 50cm as 5% ⁇ For optical amplifiers, the specific refractive index difference of the fiber is 1.5%. The cut-off wavelength is 960nm.
  • the schematic diagram of the optical amplifier is shown in Figure 2. All connections are optically polished and fixed with optical adhesives to reduce light loss.
  • Comparative Example 5 and Example 5 were the same as Example 5 except that no OH group was added when the core glass was made (the oxide was not introduced as a hydroxide).
  • a flat-band signal amplification of 10dB is obtained in a wide-area wavelength from 1525nm to 1630nm. It can be seen that adding the 0H base can increase the wide area signal by 10dB.
  • a heavy metal oxide erbium-doped glass for an optical fiber or an optical waveguide the glass containing 60-89 wt% of any one or more heavy metal oxides selected from Te, Bi, Se, Pb, and Sb, wherein The content of Er 2 0 3 is 0.05 to 10 wt%, and 0H group of 0.5 to 11 is doped as an attenuator.
  • the glass according to claim 1 wherein the glass is further added with 0.5 to 9.95 wt% of gadolinium as a sensitizer, and the content of gadolinium is 10 in terms of its oxide. -X wt%, where X is the content of rhenium.
  • An optical fiber or an optical waveguide made of a heavy metal oxide erbium-doped glass, the glass containing 60-89 wt% of any one or more heavy metal oxides selected from Te, Bi, Se, Pb, and Sb, Wherein the content of Er 2 0 3 is 0.05 to 10 wt%, and 0.5 to 11% of 0H group is doped as an attenuator.
  • optical fiber or optical waveguide according to claim 4 wherein the glass made from the optical fiber or optical waveguide is further added with 0.5 to 9.95 wt% of rhenium as a sensitizer, at this time,
  • the content of rhenium is 10-X wt% in terms of its oxide, where X is the content of rhenium.
  • optical fiber or optical waveguide according to claim 5 wherein the added amount of rhenium is 0.5-9.95 wt% based on its oxide.
  • An optical amplifier comprising an optical isolator, a wavelength division multiplexing, a quartz fiber for connection, a bait-doped fiber, a signal detector and a fiber laser
  • the erbium-doped fiber is made of a heavy metal oxide erbium-doped glass, the glass is selected from Te containing 60- 89 wt% of any one of Bi, Se, Pb, Sb or more heavy metal oxide, wherein the content of Er 2 0 3 0. 05-10 wt%, and 0 incorporated. 5-11% of the 0H group acts as an attenuator.
  • the glass made of erbium-doped fiber is further added with 0.5 to 9.95 wt% of gadolinium as a sensitizer, and the content of gadolinium at this time is Its oxide is 10-X wt%, where X is the content of rhenium.

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

Abstract

L'invention concerne un verre à métal lourd-oxyde dopé à l'erbium pour fibres optiques ou guides d'ondes optiques, ainsi que des fibres optiques et des guides d'ondes optiques constitués de ce verre et un amplificateur optique comprenant ces éléments. Ledit verre comprend 60 à 89 % en poids d'au moins un métal lourd sélectionné parmi Te, Bi, Se, Pb et Sb, et 0,05-10 % en poids de Er2O3. Environ 0,5-11 % en poids d'oxydes divers sont ajoutés en tant qu'hydroxydes pour permettre l'addition d'un groupe OH en tant qu'agent d'atténuation. Par rapport auxdits oxydes, 0,5 à 9,95 % en poids de Yb sont également ajoutés au verre, en tant qu'agent d'activation. Avec le verre selon l'invention, on a résolu le problème concernant l'absorption à l'état excité d'un niveau d'énergie de 4I11/2 de Er et les nouveaux conflits entre le Er et le Yb en tant qu'agent d'activation, et l'on a amélioré l'amplification et la largeur de bande de l'amplificateur optique comprenant ces éléments optiques.
PCT/CN2001/001644 2000-12-28 2001-12-26 Verre pour fibres optiques ou guides d'ondes optiques, fibres optiques ou guides d'ondes optiques constitues d'un tel verre et amplificateur optique comprenant de tels elements WO2002053507A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN00128166 2000-12-28
CN00128166.6 2000-12-28

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WO2002053507A1 true WO2002053507A1 (fr) 2002-07-11

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2500317A1 (de) * 1974-01-17 1975-07-24 South African Inventions Photochromes glas
US5225925A (en) * 1991-01-23 1993-07-06 Amoco Corporation Sensitized erbium fiber optical amplifier and source
JPH08110535A (ja) * 1994-08-17 1996-04-30 Nippon Telegr & Teleph Corp <Ntt> 光増幅媒体ならびにこれを用いた光増幅器およびレーザ装置
EP0858976A2 (fr) * 1997-02-14 1998-08-19 Nippon Telegraph and Telephone Corporation Verre de tellurite, amplificateur optique et source de lumière
JPH11236245A (ja) * 1998-02-23 1999-08-31 Central Glass Co Ltd 光導波路及びそれを用いた１．５〜１．６μｍ帯光増幅器
CN1243500A (zh) * 1997-01-14 2000-02-02 康宁股份有限公司 玻璃组合物和由它制作的光学器件

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2500317A1 (de) * 1974-01-17 1975-07-24 South African Inventions Photochromes glas
US5225925A (en) * 1991-01-23 1993-07-06 Amoco Corporation Sensitized erbium fiber optical amplifier and source
JPH08110535A (ja) * 1994-08-17 1996-04-30 Nippon Telegr & Teleph Corp <Ntt> 光増幅媒体ならびにこれを用いた光増幅器およびレーザ装置
CN1243500A (zh) * 1997-01-14 2000-02-02 康宁股份有限公司 玻璃组合物和由它制作的光学器件
EP0858976A2 (fr) * 1997-02-14 1998-08-19 Nippon Telegraph and Telephone Corporation Verre de tellurite, amplificateur optique et source de lumière
JPH11236245A (ja) * 1998-02-23 1999-08-31 Central Glass Co Ltd 光導波路及びそれを用いた１．５〜１．６μｍ帯光増幅器

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