CA2400900A1 - Raman amplifier with bi-directional pumping - Google Patents

Raman amplifier with bi-directional pumping Download PDF

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Publication number
CA2400900A1
CA2400900A1 CA002400900A CA2400900A CA2400900A1 CA 2400900 A1 CA2400900 A1 CA 2400900A1 CA 002400900 A CA002400900 A CA 002400900A CA 2400900 A CA2400900 A CA 2400900A CA 2400900 A1 CA2400900 A1 CA 2400900A1
Authority
CA
Canada
Prior art keywords
raman amplifier
signal
pump
travels
source
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
CA002400900A
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French (fr)
Other versions
CA2400900C (en
Inventor
Mohammed N. Islam
Michael Freeman
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.)
Xtera Communications Inc
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Individual
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Filing date
Publication date
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Priority to CA002639993A priority Critical patent/CA2639993A1/en
Publication of CA2400900A1 publication Critical patent/CA2400900A1/en
Application granted granted Critical
Publication of CA2400900C publication Critical patent/CA2400900C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04B10/29—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
    • H04B10/2916—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 using Raman or Brillouin 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
    • H01S3/30—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
    • 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
    • H01S3/06758—Tandem 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
    • H01S3/09—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
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094011—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with bidirectional pumping, i.e. with injection of the pump light from both two ends of the fibre
    • 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
    • H01S3/094003—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre
    • H01S3/094015—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light the pumped medium being a fibre with pump light recycling, i.e. with reinjection of the unused pump light back into the fiber, e.g. by reflectors or circulators
    • 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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/25—Distortion or dispersion compensation
    • H04B2210/258—Distortion or dispersion compensation treating each wavelength or wavelength band separately

Abstract

A Raman amplifier assembly inlcudes a Raman amplifier configured to receive a signal from a signal source. The signal travels in an upstream direction in the Raman amplifier. A first pump source is coupled to the Raman amplifier. The first pump source produces a first pump beam that travels in a downstream direction and is counter-propagating relative to the signal. A
second pump source is coupled to the Raman amplifier and produces a second pump beam that travels in the upstream direction. The second pump source has an average relative intensity noise of less than -80 db/Hz.
CA002400900A 2000-01-12 2001-01-12 Raman amplifier with bi-directional pumping Expired - Fee Related CA2400900C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA002639993A CA2639993A1 (en) 2000-01-12 2001-01-12 Broadband fiber transmission system with raman amplifier

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US17578600P 2000-01-12 2000-01-12
US60/175,786 2000-01-12
PCT/US2001/000943 WO2001052372A1 (en) 2000-01-12 2001-01-12 Raman amplifier with bi-directional pumping

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CA002639993A Division CA2639993A1 (en) 2000-01-12 2001-01-12 Broadband fiber transmission system with raman amplifier

Publications (2)

Publication Number Publication Date
CA2400900A1 true CA2400900A1 (en) 2001-07-19
CA2400900C CA2400900C (en) 2008-11-18

Family

ID=22641621

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002400900A Expired - Fee Related CA2400900C (en) 2000-01-12 2001-01-12 Raman amplifier with bi-directional pumping
CA002639993A Abandoned CA2639993A1 (en) 2000-01-12 2001-01-12 Broadband fiber transmission system with raman amplifier

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002639993A Abandoned CA2639993A1 (en) 2000-01-12 2001-01-12 Broadband fiber transmission system with raman amplifier

Country Status (8)

Country Link
US (2) US6631025B2 (en)
EP (2) EP2131455B1 (en)
AT (1) ATE443359T1 (en)
AU (1) AU2001227844A1 (en)
CA (2) CA2400900C (en)
DE (1) DE60139923D1 (en)
ES (1) ES2356393T3 (en)
WO (1) WO2001052372A1 (en)

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EP2131455A1 (en) 2009-12-09
EP2131455B1 (en) 2018-10-17
CA2639993A1 (en) 2001-07-19
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ATE443359T1 (en) 2009-10-15
US20030133179A1 (en) 2003-07-17
US20030016437A1 (en) 2003-01-23
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CA2400900C (en) 2008-11-18
WO2001052372A9 (en) 2002-08-15
EP1250737A1 (en) 2002-10-23
AU2001227844A1 (en) 2001-07-24
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EP1250737B1 (en) 2009-09-16
US6631025B2 (en) 2003-10-07

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