NL8100368A - Optische glasvezels en werkwijzen voor het vervaardigen van dergelijke vezels. - Google Patents

Optische glasvezels en werkwijzen voor het vervaardigen van dergelijke vezels. Download PDF

Info

Publication number: NL8100368A
Authority: NL; Netherlands
Prior art keywords: glass; cerium; fiber; rod; attenuation
Prior art date: 1980-01-28

Application number

NL8100368A

Other languages

English (en)

Dutch (nl)

Original Assignee

Pilkington Brothers Ltd

Priority date (The priority date 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 date listed.)

1980-01-28

Filing date

1981-01-27

Publication date

1981-08-17

1981-01-27 Application filed by Pilkington Brothers Ltd filed Critical Pilkington Brothers Ltd

1981-08-17 Publication of NL8100368A publication Critical patent/NL8100368A/nl

Links

239000000835 fiber Substances 0.000 title claims description 69
238000000034 method Methods 0.000 title claims description 27
239000005304 optical glass Substances 0.000 title claims description 9
238000004519 manufacturing process Methods 0.000 title description 7
229910052684 Cerium Inorganic materials 0.000 claims description 77
GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims description 73
239000011521 glass Substances 0.000 claims description 63
241001301278 Cerion Species 0.000 claims description 21
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 21
239000002019 doping agent Substances 0.000 claims description 17
239000013307 optical fiber Substances 0.000 claims description 15
NLSCHDZTHVNDCP-UHFFFAOYSA-N caesium nitrate Chemical group [Cs+].[O-][N+]([O-])=O NLSCHDZTHVNDCP-UHFFFAOYSA-N 0.000 claims description 14
230000001590 oxidative effect Effects 0.000 claims description 13
230000015572 biosynthetic process Effects 0.000 claims description 11
150000001785 cerium compounds Chemical class 0.000 claims description 11
239000000203 mixture Substances 0.000 claims description 11
BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 7
230000008569 process Effects 0.000 claims description 7
239000005368 silicate glass Substances 0.000 claims description 7
241000405961 Scomberomorus regalis Species 0.000 claims description 5
150000003839 salts Chemical class 0.000 claims description 5
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
150000002500 ions Chemical class 0.000 claims description 4
229910052814 silicon oxide Inorganic materials 0.000 claims description 4
239000000126 substance Substances 0.000 claims description 4
150000001875 compounds Chemical class 0.000 claims description 3
230000008018 melting Effects 0.000 claims description 3
238000002844 melting Methods 0.000 claims description 3
230000003313 weakening effect Effects 0.000 claims description 3
238000007496 glass forming Methods 0.000 claims description 2
238000010438 heat treatment Methods 0.000 claims description 2
238000010348 incorporation Methods 0.000 claims description 2
238000005266 casting Methods 0.000 claims 1
238000010521 absorption reaction Methods 0.000 description 17
239000000243 solution Substances 0.000 description 9
239000005388 borosilicate glass Substances 0.000 description 6
230000001603 reducing effect Effects 0.000 description 6
230000001629 suppression Effects 0.000 description 6
229910000422 cerium(IV) oxide Inorganic materials 0.000 description 5
230000003287 optical effect Effects 0.000 description 5
238000005191 phase separation Methods 0.000 description 5
230000003595 spectral effect Effects 0.000 description 5
-1 1 to 100 mg per kg Chemical compound 0.000 description 4
229910000272 alkali metal oxide Inorganic materials 0.000 description 4
CETPSERCERDGAM-UHFFFAOYSA-N ceric oxide Chemical compound O=[Ce]=O CETPSERCERDGAM-UHFFFAOYSA-N 0.000 description 4
229910000175 cerite Inorganic materials 0.000 description 4
229910000420 cerium oxide Inorganic materials 0.000 description 4
238000002386 leaching Methods 0.000 description 4
238000005259 measurement Methods 0.000 description 4
230000005855 radiation Effects 0.000 description 4
239000000377 silicon dioxide Substances 0.000 description 4
150000000703 Cerium Chemical class 0.000 description 3
238000004458 analytical method Methods 0.000 description 3
238000004891 communication Methods 0.000 description 3
230000000694 effects Effects 0.000 description 3
239000000155 melt Substances 0.000 description 3
BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 3
230000009471 action Effects 0.000 description 2
239000000654 additive Substances 0.000 description 2
239000007864 aqueous solution Substances 0.000 description 2
QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
230000005540 biological transmission Effects 0.000 description 2
KOPBYBDAPCDYFK-UHFFFAOYSA-N caesium oxide Chemical compound [O-2].[Cs+].[Cs+] KOPBYBDAPCDYFK-UHFFFAOYSA-N 0.000 description 2
229910001942 caesium oxide Inorganic materials 0.000 description 2
229920006240 drawn fiber Polymers 0.000 description 2
230000005670 electromagnetic radiation Effects 0.000 description 2
238000012681 fiber drawing Methods 0.000 description 2
238000011049 filling Methods 0.000 description 2
230000005865 ionizing radiation Effects 0.000 description 2
238000012986 modification Methods 0.000 description 2
230000004048 modification Effects 0.000 description 2
229910052760 oxygen Inorganic materials 0.000 description 2
239000001301 oxygen Substances 0.000 description 2
239000002245 particle Substances 0.000 description 2
230000035945 sensitivity Effects 0.000 description 2
238000001429 visible spectrum Methods 0.000 description 2
238000005406 washing Methods 0.000 description 2
PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 1
229910005793 GeO 2 Inorganic materials 0.000 description 1
206010019332 Heat exhaustion Diseases 0.000 description 1
206010019345 Heat stroke Diseases 0.000 description 1
229910002651 NO3 Inorganic materials 0.000 description 1
NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 1
229910004298 SiO 2 Inorganic materials 0.000 description 1
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
IKWTVSLWAPBBKU-UHFFFAOYSA-N a1010_sial Chemical compound O=[As]O[As]=O IKWTVSLWAPBBKU-UHFFFAOYSA-N 0.000 description 1
239000004480 active ingredient Substances 0.000 description 1
238000000149 argon plasma sintering Methods 0.000 description 1
229910052785 arsenic Inorganic materials 0.000 description 1
229910000413 arsenic oxide Inorganic materials 0.000 description 1
229960002594 arsenic trioxide Drugs 0.000 description 1
239000002585 base Substances 0.000 description 1
235000013405 beer Nutrition 0.000 description 1
DRVWBEJJZZTIGJ-UHFFFAOYSA-N cerium(3+);oxygen(2-) Chemical class [O-2].[O-2].[O-2].[Ce+3].[Ce+3] DRVWBEJJZZTIGJ-UHFFFAOYSA-N 0.000 description 1
230000008859 change Effects 0.000 description 1
238000005229 chemical vapour deposition Methods 0.000 description 1
238000010835 comparative analysis Methods 0.000 description 1
238000007596 consolidation process Methods 0.000 description 1
239000000356 contaminant Substances 0.000 description 1
230000007812 deficiency Effects 0.000 description 1
239000008367 deionised water Substances 0.000 description 1
229910021641 deionized water Inorganic materials 0.000 description 1
238000011161 development Methods 0.000 description 1
238000007598 dipping method Methods 0.000 description 1
239000006185 dispersion Substances 0.000 description 1
238000009826 distribution Methods 0.000 description 1
238000001035 drying Methods 0.000 description 1
238000000605 extraction Methods 0.000 description 1
238000007429 general method Methods 0.000 description 1
230000031700 light absorption Effects 0.000 description 1
239000007788 liquid Substances 0.000 description 1
239000000463 material Substances 0.000 description 1
230000007246 mechanism Effects 0.000 description 1
239000000075 oxide glass Substances 0.000 description 1
239000005373 porous glass Substances 0.000 description 1
239000011148 porous material Substances 0.000 description 1
230000000191 radiation effect Effects 0.000 description 1
238000000926 separation method Methods 0.000 description 1
229910052710 silicon Inorganic materials 0.000 description 1
239000010703 silicon Substances 0.000 description 1
239000007787 solid Substances 0.000 description 1
238000001228 spectrum Methods 0.000 description 1

Classifications

- 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
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K31/00—Medicinal preparations containing organic active ingredients
- A61K31/33—Heterocyclic compounds
- A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
- A61K31/495—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with two or more nitrogen atoms as the only ring heteroatoms, e.g. piperazine or tetrazines
- A61K31/505—Pyrimidines; Hydrogenated pyrimidines, e.g. trimethoprim
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/14—Particulate form, e.g. powders, Processes for size reducing of pure drugs or the resulting products, Pure drug nanoparticles
- A61K9/16—Agglomerates; Granulates; Microbeadlets ; Microspheres; Pellets; Solid products obtained by spray drying, spray freeze drying, spray congealing,(multiple) emulsion solvent evaporation or extraction
- A61K9/1605—Excipients; Inactive ingredients
- A61K9/1617—Organic compounds, e.g. phospholipids, fats
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5005—Wall or coating material
- A61K9/5021—Organic macromolecular compounds
- A61K9/5026—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone, poly(meth)acrylates
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5005—Wall or coating material
- A61K9/5021—Organic macromolecular compounds
- A61K9/5036—Polysaccharides, e.g. gums, alginate; Cyclodextrin
- A61K9/5042—Cellulose; Cellulose derivatives, e.g. phthalate or acetate succinate esters of hydroxypropyl methylcellulose
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K9/00—Medicinal preparations characterised by special physical form
- A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
- A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
- A61K9/5073—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings
- A61K9/5078—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings with drug-free core
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/08—Vasodilators for multiple indications
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P9/00—Drugs for disorders of the cardiovascular system
- A61P9/10—Drugs for disorders of the cardiovascular system for treating ischaemic or atherosclerotic diseases, e.g. antianginal drugs, coronary vasodilators, drugs for myocardial infarction, retinopathy, cerebrovascula insufficiency, renal arteriosclerosis
- 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
- C03B37/014—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD]
- C03B37/016—Manufacture of preforms for drawing fibres or filaments made entirely or partially by chemical means, e.g. vapour phase deposition of bulk porous glass either by outside vapour deposition [OVD], or by outside vapour phase oxidation [OVPO] or by vapour axial deposition [VAD] by a liquid phase reaction process, e.g. through a gel phase
- 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
- C03C13/001—Alkali-resistant fibres
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B2201/00—Type of glass produced
- C03B2201/06—Doped silica-based glasses
- C03B2201/30—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi
- C03B2201/34—Doped silica-based glasses doped with metals, e.g. Ga, Sn, Sb, Pb or Bi doped with rare earth metals, i.e. with Sc, Y or lanthanides, e.g. for laser-amplifiers

Landscapes

Health & Medical Sciences (AREA)
Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Life Sciences & Earth Sciences (AREA)
Bioinformatics & Cheminformatics (AREA)
General Health & Medical Sciences (AREA)
Pharmacology & Pharmacy (AREA)
Animal Behavior & Ethology (AREA)
Public Health (AREA)
Veterinary Medicine (AREA)
Medicinal Chemistry (AREA)
Epidemiology (AREA)
Chemical Kinetics & Catalysis (AREA)
Organic Chemistry (AREA)
General Chemical & Material Sciences (AREA)
Materials Engineering (AREA)
Geochemistry & Mineralogy (AREA)
Molecular Biology (AREA)
Cardiology (AREA)
Heart & Thoracic Surgery (AREA)
Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
Biophysics (AREA)
Dispersion Chemistry (AREA)
General Life Sciences & Earth Sciences (AREA)
Optics & Photonics (AREA)
Manufacturing & Machinery (AREA)
Physics & Mathematics (AREA)
Vascular Medicine (AREA)
Urology & Nephrology (AREA)
Glass Compositions (AREA)
Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)

NL8100368A 1980-01-28 1981-01-27 Optische glasvezels en werkwijzen voor het vervaardigen van dergelijke vezels. NL8100368A (nl)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB8002834		1980-01-28
GB8002834		1980-01-28

Publications (1)

Publication Number	Publication Date
NL8100368A true NL8100368A (nl)	1981-08-17

Family

ID=10510946

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
NL8100368A NL8100368A (nl)	1980-01-28	1981-01-27	Optische glasvezels en werkwijzen voor het vervaardigen van dergelijke vezels.

Country Status (15)

Country	Link
US (1)	US4345036A (da)
JP (1)	JPS56129635A (da)
AU (1)	AU539909B2 (da)
BE (1)	BE887270A (da)
BR (1)	BR8100311A (da)
CA (1)	CA1135093A (da)
CH (1)	CH645325A5 (da)
DE (1)	DE3102639A1 (da)
DK (1)	DK38581A (da)
FR (1)	FR2474475B1 (da)
IE (1)	IE810148L (da)
IT (1)	IT1135208B (da)
NL (1)	NL8100368A (da)
SE (1)	SE8100467L (da)
ZA (1)	ZA81161B (da)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JPS5832160A (ja) *	1981-08-19	1983-02-25	Nippon Steel Corp	電磁超音波探傷装置
SE454544B (sv) *	1983-03-22	1988-05-09	Ericsson Telefon Ab L M	Hogdempande optisk glasfiber
JP3187879B2 (ja) *	1991-09-30	2001-07-16	オリンパス光学工業株式会社	屈折率分布型光学素子
US7058269B2 (en) *	2001-10-24	2006-06-06	Institut National D'optique	Reconstructed glass for fiber optic applications
US8494013B2 (en) *	2010-09-17	2013-07-23	Corning Incorporated	Photodarkening resistant optical fibers and fiber lasers incorporating the same
DE102024123831B3 (de)	2024-08-21	2025-07-03	Jenoptik Optical Systems Gmbh	Optisches Bauteil, Bildaufnahmevorrichtung und Verfahren zur Herstellung eines optischen Bauteils

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US2219332A (en) *	1937-10-27	1940-10-29	Gen Electric	Refractory glass
FR1156358A (fr) *	1956-07-13	1958-05-14	Quartz & Silice	Verre de silice
US3528829A (en) *	1965-06-21	1970-09-15	Owens Illinois Inc	Low expansion glass compositions
US3499775A (en) *	1966-07-01	1970-03-10	Owens Illinois Inc	Ultraviolet-absorbing glass compositions containing cerium and molybdenum oxides
CA1020752A (en) *	1973-04-27	1977-11-15	Pedro B. Macedo	Method of producing optical wave guide fibers
US4110096A (en) *	1974-04-22	1978-08-29	Macedo Pedro B	Method of precipitation of a dopant in a porous silicate glass
US4110093A (en) *	1974-04-22	1978-08-29	Macedo Pedro B	Method for producing an impregnated waveguide
CA1063352A (en)	1975-03-18	1979-10-02	Pedro B. Macedo	Method for producing an impregnated waveguide
GB2002342B (en) *	1977-07-27	1982-06-30	Sumitomo Electric Industries	Process for producing a glass member

1981
- 1981-01-12 ZA ZA1981161A patent/ZA81161B/xx unknown
- 1981-01-13 CA CA000368399A patent/CA1135093A/en not_active Expired
- 1981-01-16 US US06/225,818 patent/US4345036A/en not_active Expired - Fee Related
- 1981-01-21 BR BR8100311A patent/BR8100311A/pt unknown
- 1981-01-22 FR FR8101125A patent/FR2474475B1/fr not_active Expired
- 1981-01-23 AU AU66567/81A patent/AU539909B2/en not_active Ceased
- 1981-01-26 SE SE8100467A patent/SE8100467L/ not_active Application Discontinuation
- 1981-01-27 DE DE19813102639 patent/DE3102639A1/de not_active Withdrawn
- 1981-01-27 IE IE810148A patent/IE810148L/xx unknown
- 1981-01-27 CH CH52581A patent/CH645325A5/de not_active IP Right Cessation
- 1981-01-27 NL NL8100368A patent/NL8100368A/nl not_active Application Discontinuation
- 1981-01-28 IT IT19375/81A patent/IT1135208B/it active
- 1981-01-28 DK DK38581A patent/DK38581A/da not_active Application Discontinuation
- 1981-01-28 JP JP1032881A patent/JPS56129635A/ja active Pending
- 1981-01-28 BE BE0/203629A patent/BE887270A/fr not_active IP Right Cessation

Also Published As

Publication number	Publication date
CA1135093A (en)	1982-11-09
IT1135208B (it)	1986-08-20
IT8119375A0 (it)	1981-01-28
FR2474475A1 (fr)	1981-07-31
ZA81161B (en)	1982-08-25
AU539909B2 (en)	1984-10-25
BE887270A (fr)	1981-07-28
FR2474475B1 (fr)	1986-01-03
BR8100311A (pt)	1981-08-11
AU6656781A (en)	1981-08-06
SE8100467L (sv)	1981-07-29
CH645325A5 (de)	1984-09-28
US4345036A (en)	1982-08-17
IE810148L (en)	1981-07-28
JPS56129635A (en)	1981-10-09
DE3102639A1 (de)	1982-03-18
DK38581A (da)	1981-07-29

Legal Events

Date	Code	Title
1981-12-16	A1B	A search report has been drawn up
1985-01-01	A85	Still pending on 85-01-01
1986-01-02	BV	The patent application has lapsed
1986-09-01	BV	The patent application has lapsed

Publication	Publication Date	Title
JP4240721B2 (ja)	2009-03-18	光増幅ガラスおよびその製造方法
EP0542476B1 (en)	1996-10-02	SiO2-based alkali-doped optical fiber
NL8103089A (nl)	1983-01-17	Optische vezel van het graded index type en werkwijze voor de vervaardiging daarvan.
US4686196A (en)	1987-08-11	Phototropic glass with a refractive index greater than or equal to 1.59, an abbe number greater than or equal to 44 and a density less than or equal to 3.0 g/cm3
KR20010014100A (ko)	2001-02-26	광도파관 제품용 조성물 및 연속 클래드 필라멘트의제조방법
FR2558152A1 (fr)	1985-07-19	Verres a usage ophtalmique de faible densite, absorbant les radiations ultraviolettes et ayant une haute transmission dans le visible et lentilles correctrices constituees de ces verres
JP4232414B2 (ja)	2009-03-04	光増幅ガラスおよび光導波路
KR100752904B1 (ko)	2007-08-28	고함량의 은을 갖는 보로실리케이트 유리
JPS6411581B2 (da)	1989-02-27
EP0094810B1 (en)	1988-08-24	Process for producing glass product having gradient of refractive index
WO2003002477A1 (en)	2003-01-09	Borosilicate cladding glasses for germanate core thulium-doped amplifiers
US4183620A (en)	1980-01-15	Joint doped porous glass article with high modifier concentrations
IE44144B1 (en)	1981-08-26	Improvements in or relating to the production of glass articles
US4236930A (en)	1980-12-02	Optical waveguide and method and compositions for producing same
US4345036A (en)	1982-08-17	Optical glass fibres and method of forming such fibres
US4299608A (en)	1981-11-10	Joint doping of porous glasses to produce materials with high modifier concentrations
JP4862233B2 (ja)	2012-01-25	光増幅ガラス
DE69807706T2 (de)	2003-06-05	Glaszusammensetzung und optische vorrichtung daraus hergestellt
Poole	1988	Fabrication of Al/sub 2/O/sub 3/co-doped optical fibres by a solution-doping technique
JP4250830B2 (ja)	2009-04-08	光増幅ガラス
GB2067986A (en)	1981-08-05	Optical glass fibres and methods of forming such fibres
JP4314468B2 (ja)	2009-08-19	光増幅ガラスおよび光導波路
US4319905A (en)	1982-03-16	Method of leaching glass preforms
JP2004168578A (ja)	2004-06-17	光増幅ガラスおよび光導波路
JP4348987B2 (ja)	2009-10-21	光増幅ガラスおよび光導波路