FI903597A0 - Anordning foer foerstaerkning av ljussignaler i optiska fibertransmissionslinjer. - Google Patents

Anordning foer foerstaerkning av ljussignaler i optiska fibertransmissionslinjer.

Info

Publication number: FI903597A0
Authority: FI; Finland
Prior art keywords: optiska; ljussignaler; fibertransmissionslinjer; anordning foer; foerstaerkning
Prior art date: 1989-07-17

Application number

FI903597A

Other languages

English (en)

Other versions

FI903597A7 (fi

Inventor

Giorgio Grasso

Aldo Righetti

Original Assignee

Pirelli Cavi Spa

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.)

1989-07-17

Filing date

1990-07-16

Publication date

1990-07-16

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=11178379&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FI903597(A0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1990-07-16 Application filed by Pirelli Cavi Spa filed Critical Pirelli Cavi Spa

1990-07-16 Publication of FI903597A0 publication Critical patent/FI903597A0/fi

1991-01-18 Publication of FI903597A7 publication Critical patent/FI903597A7/fi

Classifications

- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/29—Repeaters
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/29—Repeaters
- H04B10/291—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form
- H04B10/2912—Repeaters in which processing or amplification is carried out without conversion of the main signal from optical form characterised by the medium used for amplification or processing
- 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
- G02B6/24—Coupling light guides
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4207—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback
- G02B6/4208—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms with optical elements reducing the sensitivity to optical feedback using non-reciprocal elements or birefringent plates, i.e. quasi-isolators
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0064—Anti-reflection devices, e.g. optical isolaters
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
- H01S3/06754—Fibre amplifiers
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S2301/00—Functional characteristics
- H01S2301/02—ASE (amplified spontaneous emission), noise; Reduction thereof

Landscapes

Physics & Mathematics (AREA)
Electromagnetism (AREA)
Engineering & Computer Science (AREA)
Optics & Photonics (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Plasma & Fusion (AREA)
General Physics & Mathematics (AREA)
Optical Communication System (AREA)
Lasers (AREA)
Light Guides In General And Applications Therefor (AREA)

FI903597A 1989-07-17 1990-07-16 Laite valosignaalien vahvistamiseksi optisissa kuitusiirtolinjoissa FI903597A7 (fi)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
IT8921207A IT1231208B (it)	1989-07-17	1989-07-17	Unita' per l'amplificazione di segnali luminosi in linee di trasmissione a fibre ottiche.

Publications (2)

Publication Number	Publication Date
FI903597A0 true FI903597A0 (fi)	1990-07-16
FI903597A7 FI903597A7 (fi)	1991-01-18

Family

ID=11178379

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FI903597A FI903597A7 (fi)	1989-07-17	1990-07-16	Laite valosignaalien vahvistamiseksi optisissa kuitusiirtolinjoissa

Country Status (31)

Country	Link
EP (1)	EP0409012B1 (fi)
JP (1)	JPH03101718A (fi)
KR (1)	KR0177147B1 (fi)
CN (1)	CN1015840B (fi)
AR (1)	AR242686A1 (fi)
AT (1)	ATE118935T1 (fi)
AU (1)	AU634794B2 (fi)
BR (1)	BR9003541A (fi)
CA (1)	CA2021281C (fi)
CZ (1)	CZ281336B6 (fi)
DD (1)	DD301694A9 (fi)
DE (1)	DE69017108T2 (fi)
DK (1)	DK0409012T3 (fi)
ES (1)	ES2071705T3 (fi)
FI (1)	FI903597A7 (fi)
HK (1)	HK1000979A1 (fi)
HU (1)	HU210859B (fi)
ID (1)	ID1039B (fi)
IE (1)	IE67282B1 (fi)
IT (1)	IT1231208B (fi)
LT (1)	LT3573B (fi)
LV (1)	LV10818B (fi)
MX (1)	MX173807B (fi)
NO (1)	NO303040B1 (fi)
NZ (1)	NZ234437A (fi)
PE (1)	PE33590A1 (fi)
PL (1)	PL167672B1 (fi)
PT (1)	PT94717B (fi)
RU (1)	RU2025757C1 (fi)
SK (1)	SK280814B6 (fi)
UA (1)	UA24953A (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US5210808A (en) *	1989-07-17	1993-05-11	Pirelli Cavi S.P.A.	Unit for amplifying light signals in optical fiber transmission lines
DE4222208A1 (de) *	1992-07-07	1994-01-13	Sel Alcatel Ag	Optisches Nachrichtenübertragungssystem mit optischem Filter zum Schutz vor Riesenimpulsen
JP7353975B2 (ja) *	2017-09-08	2023-10-02	古河電気工業株式会社	光モジュール

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2201556B2 (fi) *	1971-09-24	1978-11-24	Siemens Ag
JPS52155901A (en)	1976-06-21	1977-12-24	Nippon Telegr & Teleph Corp <Ntt>	Transmission system for optical fiber
US4546476A (en) *	1982-12-10	1985-10-08	The Board Of Trustees Of The Leland Stanford Junior University	Fiber optic amplifier
US4596048A (en) *	1983-04-04	1986-06-17	General Electric Company	Optically isolated contention bus
GB8512980D0 (en) *	1985-05-22	1985-06-26	Pa Consulting Services	Fibre optic transmissions systems
JPS63219186A (ja)	1987-03-09	1988-09-12	Nippon Telegr & Teleph Corp <Ntt>	光アイソレ−タ内蔵半導体レ−ザ・モジユ−ル

1989
- 1989-07-17 IT IT8921207A patent/IT1231208B/it active
1990
- 1990-07-06 AT AT90112920T patent/ATE118935T1/de not_active IP Right Cessation
- 1990-07-06 ES ES90112920T patent/ES2071705T3/es not_active Expired - Lifetime
- 1990-07-06 DE DE69017108T patent/DE69017108T2/de not_active Expired - Fee Related
- 1990-07-06 DK DK90112920.5T patent/DK0409012T3/da active
- 1990-07-06 EP EP90112920A patent/EP0409012B1/en not_active Revoked
- 1990-07-10 NZ NZ234437A patent/NZ234437A/xx unknown
- 1990-07-12 AU AU58952/90A patent/AU634794B2/en not_active Expired
- 1990-07-16 UA UA4830505A patent/UA24953A/uk unknown
- 1990-07-16 FI FI903597A patent/FI903597A7/fi not_active Application Discontinuation
- 1990-07-16 PL PL90286078A patent/PL167672B1/pl unknown
- 1990-07-16 DD DD90342811A patent/DD301694A9/de active Search and Examination
- 1990-07-16 NO NO903172A patent/NO303040B1/no not_active IP Right Cessation
- 1990-07-16 IE IE258490A patent/IE67282B1/en not_active IP Right Cessation
- 1990-07-16 KR KR1019900010776A patent/KR0177147B1/ko not_active Expired - Fee Related
- 1990-07-16 AR AR90317376A patent/AR242686A1/es active
- 1990-07-16 CA CA002021281A patent/CA2021281C/en not_active Expired - Lifetime
- 1990-07-16 RU SU904830505A patent/RU2025757C1/ru active
- 1990-07-16 HU HU904221A patent/HU210859B/hu not_active IP Right Cessation
- 1990-07-17 SK SK3536-90A patent/SK280814B6/sk unknown
- 1990-07-17 CN CN90104609A patent/CN1015840B/zh not_active Expired
- 1990-07-17 MX MX021622A patent/MX173807B/es unknown
- 1990-07-17 JP JP2189289A patent/JPH03101718A/ja active Pending
- 1990-07-17 CZ CS903536A patent/CZ281336B6/cs not_active IP Right Cessation
- 1990-07-17 PE PE1990172304A patent/PE33590A1/es not_active Application Discontinuation
- 1990-07-17 BR BR909003541A patent/BR9003541A/pt unknown
- 1990-07-17 PT PT94717A patent/PT94717B/pt not_active IP Right Cessation
1991
- 1991-12-12 ID IDP22091A patent/ID1039B/id unknown
1993
- 1993-06-30 LV LVP-93-831A patent/LV10818B/en unknown
- 1993-12-15 LT LTIP1608A patent/LT3573B/lt not_active IP Right Cessation
1997
- 1997-12-27 HK HK97102627A patent/HK1000979A1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
DK0409012T3 (da)	1995-05-22
ATE118935T1 (de)	1995-03-15
AU5895290A (en)	1991-01-17
CA2021281A1 (en)	1991-01-18
AU634794B2 (en)	1993-03-04
SK280814B6 (sk)	2000-08-14
PT94717B (pt)	2001-06-29
IT8921207A0 (it)	1989-07-17
HU904221D0 (en)	1990-12-28
IE902584A1 (en)	1991-02-27
PL167672B1 (pl)	1995-10-31
LV10818A (lv)	1995-08-20
NO903172L (no)	1991-01-18
LV10818B (en)	1996-04-20
CN1015840B (zh)	1992-03-11
HK1000979A1 (en)	1998-05-15
EP0409012A1 (en)	1991-01-23
KR910003919A (ko)	1991-02-28
ES2071705T3 (es)	1995-07-01
NO903172D0 (no)	1990-07-16
PE33590A1 (es)	1991-01-16
KR0177147B1 (ko)	1999-05-15
PT94717A (pt)	1992-02-28
PL286078A1 (en)	1991-04-08
LTIP1608A (en)	1995-07-25
CZ281336B6 (cs)	1996-08-14
IE67282B1 (en)	1996-03-20
ID1039B (id)	1996-10-25
UA24953A (uk)	1998-12-25
CN1048961A (zh)	1991-01-30
NZ234437A (en)	1993-03-26
FI903597A7 (fi)	1991-01-18
CA2021281C (en)	1994-05-24
HUT54441A (en)	1991-02-28
LT3573B (en)	1995-12-27
IT1231208B (it)	1991-11-23
EP0409012B1 (en)	1995-02-22
DE69017108T2 (de)	1995-06-14
HU210859B (en)	1995-08-28
BR9003541A (pt)	1991-08-27
CS353690A3 (en)	1992-04-15
RU2025757C1 (ru)	1994-12-30
NO303040B1 (no)	1998-05-18
JPH03101718A (ja)	1991-04-26
MX173807B (es)	1994-03-29
AR242686A1 (es)	1993-04-30
DE69017108D1 (de)	1995-03-30
DD301694A9 (de)	1993-07-08

Publication	Publication Date	Title
FI902257A0 (fi)	1990-05-04	Foerfarande foer kontrollering av luftinneslutningar i betongkomposition.
FI892316L (fi)	1990-11-13	Koppling foer alstring av laoga effektnivaoer i saendaren av en radiotelefon.
FI892709A0 (fi)	1989-06-02	Turbulensgenerator i inloppslaodan av en pappersmaskin.
FI905396A0 (fi)	1990-11-01	Foerfarande foer spaonfri uppdelning av kantvirke i jaemntjocka braeder.
FI920952A0 (fi)	1992-03-04	Foerbaettringar i tillverkningen av pappersbanamaterial.
FI83359B (fi)	1991-03-15	Foerfarande foer framstaellning av en takskiva.
FI892385A0 (fi)	1989-05-18	Munstyckessystem i blaosningslaodan av en pappersmaskin.
FI922407L (fi)	1992-05-26	Anvaendning av komplexligander foer joner i ferroelektriska flytkristallblandningar.
FI905989L (fi)	1991-06-21	Foerfarande foer reducering av nox-halten i roekgaser.
FI903697A0 (fi)	1990-07-23	Foerfarande foer kontrolering av avskiljningskraft i avskiljbara beklaednader.
FI895219A0 (fi)	1989-11-02	Foerfarande foer foerpackning av oeverlaonga pappers- och kartongrullor i omslagspapper.
FI902791A0 (fi)	1990-06-05	Anordning foer formning av en fuktig pappersbana i en pappersmaskin.
FI921781L (fi)	1992-04-22	Kaffefilter foer beredning av filterkaffeportioner i koppstorlek.
FI903597A0 (fi)	1990-07-16	Anordning foer foerstaerkning av ljussignaler i optiska fibertransmissionslinjer.
FI921980L (fi)	1992-04-30	Krets foer reglering av slaeckningen i en televisionsmottagare.
FI892380A0 (fi)	1989-05-18	Anordning foer foerflyttning i sidled av en rulle ingaoende i en foerflyttningsanordning.
FI83342B (fi)	1991-03-15	Turbulensgenerator i inloppslaodan av en pappersmaskin.
FI894624A0 (fi)	1989-09-29	Stoedsystem foer en blaosningslaoda i en maongcylindertork av en pappersmaskin.
FI894868A0 (fi)	1989-10-13	Arrangemang foer formningsgap i en dubbelviraformare av en pappersmaskin.
FI894787L (fi)	1991-04-10	Foerfarande foer bestaemning av aemneskoncentrationer i en materialstroem.
FI894786A7 (fi)	1991-04-10	Foerfarande foer bestaemning av aemneskoncentrationer i en materialstroem.
FI894389L (fi)	1991-03-19	Anordning foer instaellning av skaerbettets slaeppvinkel i en fanersvarv.
FI893274L (fi)	1991-01-06	Arrangemang foer foeruppvaermning av oljan i en foerbraenningsmotors vevhus.
FI892376A7 (fi)	1990-11-19	Foerfarande foer foerminskning av bildande av slitagespaor i permanentbelagda vaegar.
FI891985A0 (fi)	1989-04-26	Turbulensorgan av plaotkonstruktion foer en rektangelformig roekkanal i en vaermepanna.

Legal Events

Date	Code	Title	Description
2005-09-18	FD	Application lapsed