DE315132T1 - Methode zur verminderung der daempfung von optischen fasern. - Google Patents

Methode zur verminderung der daempfung von optischen fasern.

Info

Publication number: DE315132T1
Authority: DE; Germany
Prior art keywords: damping; reducing; optical fibers; fibers; optical
Prior art date: 1987-11-05
Legal status (The legal status 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 status listed.): Pending

Application number

DE198888118223T

Other languages

English (en)

Inventor

Pietro Torino It Di Vita

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

CSELT-CENTRO STUDI E LABORATORI TELECOMUNICAZIONI SpA TURIN/TORINO IT

Original Assignee

CSELT-CENTRO STUDI E LABORATORI TELECOMUNICAZIONI SpA TURIN/TORINO IT

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.)

1987-11-05

Filing date

1988-11-02

Publication date

1990-05-03

1988-11-02 Application filed by CSELT-CENTRO STUDI E LABORATORI TELECOMUNICAZIONI SpA TURIN/TORINO IT filed Critical CSELT-CENTRO STUDI E LABORATORI TELECOMUNICAZIONI SpA TURIN/TORINO IT

1990-05-03 Publication of DE315132T1 publication Critical patent/DE315132T1/de

Status Pending legal-status Critical Current

Links

238000013016 damping Methods 0.000 title 1
238000000034 method Methods 0.000 title 1
239000013307 optical fiber Substances 0.000 title 1

Classifications

- 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
- C03B37/10—Non-chemical treatment
- C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
- 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
- C03B37/10—Non-chemical treatment
- C03B37/14—Re-forming fibres or filaments, i.e. changing their shape
- C03B37/15—Re-forming fibres or filaments, i.e. changing their shape with heat application, e.g. for making optical fibres

DE198888118223T 1987-11-05 1988-11-02 Methode zur verminderung der daempfung von optischen fasern. Pending DE315132T1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT8767942A IT1211498B (it)	1987-11-05	1987-11-05	Procedimento per ridurre l attenuazione in fibre ottiche

Publications (1)

Publication Number	Publication Date
DE315132T1 true DE315132T1 (de)	1990-05-03

Family

ID=11306567

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
DE8888118223T Expired - Lifetime DE3865627D1 (de)	1987-11-05	1988-11-02	Methode zur verminderung der daempfung von optischen fasern.
DE198888118223T Pending DE315132T1 (de)	1987-11-05	1988-11-02	Methode zur verminderung der daempfung von optischen fasern.

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
DE8888118223T Expired - Lifetime DE3865627D1 (de)	1987-11-05	1988-11-02	Methode zur verminderung der daempfung von optischen fasern.

Country Status (6)

Country	Link
US (2)	US4925472A (de)
EP (1)	EP0315132B1 (de)
JP (1)	JP2631533B2 (de)
CA (1)	CA1306854C (de)
DE (2)	DE3865627D1 (de)
IT (1)	IT1211498B (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE4005730A1 (de) *	1990-02-23	1991-08-29	Kabelmetal Electro Gmbh	Vorrichtung zur herstellung einer lichtwellenleiter-vorform
US5228893A (en) *	1991-11-27	1993-07-20	At&T Bell Laboratories	Optical fiber tension monitoring technique
WO2000045532A1 (en) *	1999-01-28	2000-08-03	The University Of Melbourne	Noise suppression in lightwave communication systems
CN1247477C (zh) *	1999-05-27	2006-03-29	住友电气工业株式会社	光纤的制造装置和制造方法
US20040057692A1 (en) *	2002-08-28	2004-03-25	Ball Laura J.	Low loss optical fiber and method for making same
US7536877B2 (en) *	2003-04-04	2009-05-26	Fitel Ush Corp.	Optical fiber fabrication and product
US20060130530A1 (en) *	2004-12-21	2006-06-22	Anderson James G	Method of doping silica glass with an alkali metal, and optical fiber precursor formed therefrom
EP1952186A4 (de) *	2005-11-23	2010-08-04	Corning Inc	Dämpfungsarme nicht-null-dispersionsverschobene optische faser
CN102081235A (zh) *	2010-12-08	2011-06-01	福州高意通讯有限公司	多模光纤中传输光信号均匀化、消偏振以及消相干的方法
CN102147236B (zh) *	2011-03-23	2012-09-26	南京大学	一种全分布式光纤应变及振动的传感方法与传感器
CN104007511A (zh) *	2014-05-30	2014-08-27	广东高聚激光有限公司	超声光纤光栅全光纤衰减器及光纤在线光功率衰减方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3300288A (en) *	1963-03-01	1967-01-24	Pittsburgh Plate Glass Co	Method for the production of glass fibers
US3912478A (en) *	1974-06-17	1975-10-14	Bell Telephone Labor Inc	Methods of introducing geometrical variations in optical fibers
JPS568106A (en) *	1979-06-30	1981-01-27	Toshiba Corp	Manufacture of optical waveguide
JPS57175739A (en) *	1981-04-17	1982-10-28	Nippon Telegr & Teleph Corp <Ntt>	Preparation of rod lens
US4447124A (en) *	1981-10-27	1984-05-08	Bell Telephone Laboratories, Incorporated	Multimode optical fiber with radially varying attenuation center density
DD205154A1 (de) *	1982-05-27	1983-12-21	Adw D Ddr Berlin	Verfahren zur herstellung von lichtleitfasern
JPS59227747A (ja) *	1983-06-09	1984-12-21	Showa Electric Wire & Cable Co Ltd	光フアイバ製造方法
GB2149392A (en) *	1983-11-11	1985-06-12	Central Electr Generat Board	Surface treatment of glass
JPS6110409A (ja) *	1984-06-26	1986-01-17	Toyota Motor Corp	インモ−ルドコ−テイング成形方法
FR2568254B1 (fr) *	1984-07-25	1988-04-29	Centre Nat Rech Scient	Application d'oligonucleotides lies a un agent intercalant, notamment a titre de medicament

1987
- 1987-11-05 IT IT8767942A patent/IT1211498B/it active
1988
- 1988-10-17 JP JP63259621A patent/JP2631533B2/ja not_active Expired - Lifetime
- 1988-11-02 DE DE8888118223T patent/DE3865627D1/de not_active Expired - Lifetime
- 1988-11-02 DE DE198888118223T patent/DE315132T1/de active Pending
- 1988-11-02 EP EP88118223A patent/EP0315132B1/de not_active Expired - Lifetime
- 1988-11-03 US US07/266,734 patent/US4925472A/en not_active Expired - Lifetime
- 1988-11-07 CA CA000582411A patent/CA1306854C/en not_active Expired - Lifetime
1989
- 1989-05-10 US US07/349,992 patent/US4929264A/en not_active Expired - Fee Related

Also Published As

Publication number	Publication date
US4929264A (en)	1990-05-29
JP2631533B2 (ja)	1997-07-16
EP0315132A3 (en)	1990-02-07
EP0315132A2 (de)	1989-05-10
DE3865627D1 (de)	1991-11-21
CA1306854C (en)	1992-09-01
US4925472A (en)	1990-05-15
IT1211498B (it)	1989-11-03
JPH01142607A (ja)	1989-06-05
EP0315132B1 (de)	1991-10-16
IT8767942A0 (it)	1987-11-05

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