WO1999066607A3 - Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity - Google Patents

Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity Download PDF

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Publication number
WO1999066607A3
WO1999066607A3 PCT/US1999/013551 US9913551W WO9966607A3 WO 1999066607 A3 WO1999066607 A3 WO 1999066607A3 US 9913551 W US9913551 W US 9913551W WO 9966607 A3 WO9966607 A3 WO 9966607A3
Authority
WO
WIPO (PCT)
Prior art keywords
dispersion
band
fiber
gain
dmra
Prior art date
Application number
PCT/US1999/013551
Other languages
French (fr)
Other versions
WO1999066607A2 (en
Inventor
Mohammed Nazrul Islam
Mohammed Azizul Islam
Michael R Slawson
Original Assignee
Bandwidth Solutions Inc
Univ Michigan
Mohammed Nazrul Islam
Mohammed Azizul Islam
Michael R Slawson
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 Bandwidth Solutions Inc, Univ Michigan, Mohammed Nazrul Islam, Mohammed Azizul Islam, Michael R Slawson filed Critical Bandwidth Solutions Inc
Priority to JP2000555336A priority Critical patent/JP5069825B2/en
Priority to DE69942932T priority patent/DE69942932D1/en
Priority to US09/719,591 priority patent/US6985283B1/en
Priority to EP99930301A priority patent/EP1088375B1/en
Priority to AT99930301T priority patent/ATE488037T1/en
Priority to CA002335289A priority patent/CA2335289C/en
Publication of WO1999066607A2 publication Critical patent/WO1999066607A2/en
Publication of WO1999066607A3 publication Critical patent/WO1999066607A3/en

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Classifications

    • 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
    • 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
    • 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
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion
    • H04B10/2525—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using dispersion-compensating fibres
    • H04B10/25253—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic dispersion using dispersion-compensating fibres with dispersion management, i.e. using a combination of different kind of fibres in the transmission system
    • 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
    • H01S3/05—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
    • H01S3/094015—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
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/003—Devices including multiple stages, e.g., multi-stage optical amplifiers or dispersion compensators

Abstract

An apparatus and method are described for combining optical amplification and dispersion compensation in a Raman amplifier (Fig. 4a). Dispersion-Managing Raman Amplifier (DMRA) (Fig. 4a) combines Raman amplification with dispersion compensation by selecting the length and dispersion of the gain fiber (100) to balance the dispersion of the link. The pumping level is adjusted to balance the losses from the gain fiber (100) and transmission link (130). For WDM transmission systems based on dispersion-shifted fiber (DSF), operation in the 'violet band' between 1430-1530 nm is based on Raman amplification. By using a DMRA (550), a dispersion (510) and nonlinearity managed system can be implemented. Furthermore, gain equalization can be added to the DMRA by cascading one or two Mach-Zehnder frequency filters. The invention also includes a method for symmetrically adding channels below and above the C-band, the gain tilt within the C-band can be minimized. To minimize the interaction between pumps for different bands (Fig. 16d), alternate band pumps can be spatially dispersed and/or cross-polarized (Fig. 16d).
PCT/US1999/013551 1998-06-16 1999-06-16 Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity WO1999066607A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP2000555336A JP5069825B2 (en) 1998-06-16 1999-06-16 Optical fiber compensation for dispersion, gain tilt, and band-pumping nonlinearity
DE69942932T DE69942932D1 (en) 1998-06-16 1999-06-16 DISPERSION COMPENSATING AND REINFORCING OPTICAL ELEMENT
US09/719,591 US6985283B1 (en) 1998-06-16 1999-06-16 Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity
EP99930301A EP1088375B1 (en) 1998-06-16 1999-06-16 Dispersion compensating and amplifying optical element
AT99930301T ATE488037T1 (en) 1998-06-16 1999-06-16 DISPERSION COMPENSATING AND Amplifying OPTICAL ELEMENT
CA002335289A CA2335289C (en) 1998-06-16 1999-06-16 Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8942698P 1998-06-16 1998-06-16
US60/089,426 1998-06-16

Related Child Applications (3)

Application Number Title Priority Date Filing Date
US09719591 A-371-Of-International 1999-06-16
US09/719,591 A-371-Of-International US6985283B1 (en) 1998-06-16 1999-06-16 Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity
US09/768,367 Continuation-In-Part US6574037B2 (en) 1998-06-16 2001-01-22 All band amplifier

Publications (2)

Publication Number Publication Date
WO1999066607A2 WO1999066607A2 (en) 1999-12-23
WO1999066607A3 true WO1999066607A3 (en) 2000-03-16

Family

ID=22217579

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1999/013551 WO1999066607A2 (en) 1998-06-16 1999-06-16 Fiber-optic compensation for dispersion, gain tilt, and band pump nonlinearity

Country Status (7)

Country Link
US (1) US6985283B1 (en)
EP (1) EP1088375B1 (en)
JP (1) JP5069825B2 (en)
AT (1) ATE488037T1 (en)
CA (1) CA2335289C (en)
DE (1) DE69942932D1 (en)
WO (1) WO1999066607A2 (en)

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CA2335289A1 (en) 1999-12-23
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JP5069825B2 (en) 2012-11-07
US6985283B1 (en) 2006-01-10

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