CA2042987A1 - Unit for amplifying light signals in optical fiber transmission lines - Google Patents

Unit for amplifying light signals in optical fiber transmission lines

Info

Publication number
CA2042987A1
CA2042987A1 CA2042987A CA2042987A CA2042987A1 CA 2042987 A1 CA2042987 A1 CA 2042987A1 CA 2042987 A CA2042987 A CA 2042987A CA 2042987 A CA2042987 A CA 2042987A CA 2042987 A1 CA2042987 A1 CA 2042987A1
Authority
CA
Canada
Prior art keywords
fiber
optical fiber
energy
active
unit
Prior art date
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.)
Granted
Application number
CA2042987A
Other languages
French (fr)
Other versions
CA2042987C (en
Inventor
Giorgio Grasso
Aldo Righetti
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.)
Pirelli and C SpA
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.)
Filing date
Publication date
Priority claimed from IT02043490A external-priority patent/IT1248821B/en
Application filed by Pirelli Cavi SpA filed Critical Pirelli Cavi SpA
Publication of CA2042987A1 publication Critical patent/CA2042987A1/en
Application granted granted Critical
Publication of CA2042987C publication Critical patent/CA2042987C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Lasers (AREA)
  • Optical Communication System (AREA)

Abstract

Active-fiber optical amplifier connected to optical fiber lines or a telecommunication signal source through energy reflection limiting means, such as optical isolators, for limiting the reflected energy, due to Rayleigh scattering, which reaches the active fiber, to permit increased amplifier gain.
The input of the active fiber is connected to a dichroic coupler which is also connected to a pumping energy source by an optical fiber having a bevelled end surface or an antireflection coating at the energy source end to limit reflection of energy to the active fiber. Also, a telecommunication system including one or more of such protected amplifiers.
CA 2042987 1990-05-25 1991-05-21 Unit for amplifying light signals in optical fiber transmission lines Expired - Lifetime CA2042987C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
IT20434 1990-05-25
IT02043490A IT1248821B (en) 1990-05-25 1990-05-25 FIBER OPTIC TELECOMMUNICATION LINE WITH ACTIVE FIBER OPTICAL AMPLIFIERS WITH REDUCED REFLECTIONS
US55291890A 1990-07-16 1990-07-16
US552,918 1990-07-16

Publications (2)

Publication Number Publication Date
CA2042987A1 true CA2042987A1 (en) 1991-11-26
CA2042987C CA2042987C (en) 1997-02-11

Family

ID=26327528

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 2042987 Expired - Lifetime CA2042987C (en) 1990-05-25 1991-05-21 Unit for amplifying light signals in optical fiber transmission lines

Country Status (1)

Country Link
CA (1) CA2042987C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115473503A (en) * 2022-05-23 2022-12-13 合肥本源量子计算科技有限责任公司 Method, device, medium and electronic equipment for representing gain of signal amplifier

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336240B4 (en) * 2003-08-07 2016-06-30 Xieon Networks S.À.R.L. Arrangement for reducing reflection interference in a transmission system with at least one connected Raman pump source

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115473503A (en) * 2022-05-23 2022-12-13 合肥本源量子计算科技有限责任公司 Method, device, medium and electronic equipment for representing gain of signal amplifier
CN115473503B (en) * 2022-05-23 2024-04-05 本源量子计算科技（合肥）股份有限公司 Characterization method, device, medium and electronic equipment of signal amplifier gain

Also Published As

Publication number Publication date
CA2042987C (en) 1997-02-11

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Legal Events

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