DE10336240A1 - Reflection interference reduction device for transmission system, has optical isolator connected between transmission fiber and point of interference reflection of pump signals - Google Patents

Reflection interference reduction device for transmission system, has optical isolator connected between transmission fiber and point of interference reflection of pump signals Download PDF

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Publication number
DE10336240A1
DE10336240A1 DE2003136240 DE10336240A DE10336240A1 DE 10336240 A1 DE10336240 A1 DE 10336240A1 DE 2003136240 DE2003136240 DE 2003136240 DE 10336240 A DE10336240 A DE 10336240A DE 10336240 A1 DE10336240 A1 DE 10336240A1
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DE
Germany
Prior art keywords
reflection
interference
point
optical isolator
transmission
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
DE2003136240
Other languages
German (de)
Other versions
DE10336240B4 (en
Inventor
Peter Krummrich
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.)
Xieon Networks SARL
Original Assignee
Siemens AG
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
Application filed by Siemens AG filed Critical Siemens AG
Priority to DE10336240.1A priority Critical patent/DE10336240B4/en
Publication of DE10336240A1 publication Critical patent/DE10336240A1/en
Application granted granted Critical
Publication of DE10336240B4 publication Critical patent/DE10336240B4/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • 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
    • 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
    • H01S3/09—Processes or apparatus for excitation, e.g. pumping
    • H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
    • H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
    • H01S3/094096—Multi-wavelength pumping
    • 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
    • H01S3/30—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects
    • H01S3/302—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range using scattering effects, e.g. stimulated Brillouin or Raman effects in an optical fibre

Abstract

At least one Raman pump source (RP1,RP2...) is provided for amplifying optical signals (S1,S2,S3) transmitted along transmission fibers (LWL1,LWL2), and the pump signals (PS1,PS2,...) are fed via an optical connection (OV1,OV2,...) to the transmission fiber. An optical isolator (ISO) is connected between the transmission fiber and a point of interference reflection of the pump signals.
DE10336240.1A 2003-08-07 2003-08-07 Arrangement for reducing reflection interference in a transmission system with at least one connected Raman pump source Expired - Lifetime DE10336240B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE10336240.1A DE10336240B4 (en) 2003-08-07 2003-08-07 Arrangement for reducing reflection interference in a transmission system with at least one connected Raman pump source

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10336240.1A DE10336240B4 (en) 2003-08-07 2003-08-07 Arrangement for reducing reflection interference in a transmission system with at least one connected Raman pump source

Publications (2)

Publication Number Publication Date
DE10336240A1 true DE10336240A1 (en) 2005-03-10
DE10336240B4 DE10336240B4 (en) 2016-06-30

Family

ID=34177352

Family Applications (1)

Application Number Title Priority Date Filing Date
DE10336240.1A Expired - Lifetime DE10336240B4 (en) 2003-08-07 2003-08-07 Arrangement for reducing reflection interference in a transmission system with at least one connected Raman pump source

Country Status (1)

Country Link
DE (1) DE10336240B4 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2042987C (en) * 1990-05-25 1997-02-11 Giorgio Grasso Unit for amplifying light signals in optical fiber transmission lines
EP2306605B1 (en) * 1998-07-23 2012-05-23 The Furukawa Electric Co., Ltd. Pumping unit for a Raman amplifier and Raman amplifier comprising the same
WO2001005070A1 (en) * 1999-07-08 2001-01-18 Alcatel Use of isolators to overcome limitations to raman amplification resulting from rayleigh scattering
JP2002076482A (en) * 2000-08-31 2002-03-15 Fujitsu Ltd Optical amplifier, optical amplification method and optical amplification system
US6424455B1 (en) * 2000-10-03 2002-07-23 Tycom (Us) Inc. Wide bandwidth fiber raman amplifier

Also Published As

Publication number Publication date
DE10336240B4 (en) 2016-06-30

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
8125 Change of the main classification

Ipc: H04B 10/17 AFI20051017BHDE

8127 New person/name/address of the applicant

Owner name: NOKIA SIEMENS NETWORKS GMBH & CO.KG, 81541 MUE, DE

R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: H04B0010170000

Ipc: H04B0010291000

R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: H04B0010170000

Ipc: H04B0010291000

Effective date: 20121121

R082 Change of representative

Representative=s name: BOEHMERT & BOEHMERT, DE

R081 Change of applicant/patentee

Owner name: XIEON NETWORKS S.A.R.L., LU

Free format text: FORMER OWNER: NOKIA SIEMENS NETWORKS GMBH & CO. KG, 81541 MUENCHEN, DE

Effective date: 20131106

R082 Change of representative

Representative=s name: BOEHMERT & BOEHMERT, DE

Effective date: 20131106

Representative=s name: BOEHMERT & BOEHMERT ANWALTSPARTNERSCHAFT MBB -, DE

Effective date: 20131106

R016 Response to examination communication
R018 Grant decision by examination section/examining division
R020 Patent grant now final
R071 Expiry of right