GB2350738B - Method and apparatus for scrambling the polarization of light signals - Google Patents

Method and apparatus for scrambling the polarization of light signals

Info

Publication number
GB2350738B
GB2350738B GB0021493A GB0021493A GB2350738B GB 2350738 B GB2350738 B GB 2350738B GB 0021493 A GB0021493 A GB 0021493A GB 0021493 A GB0021493 A GB 0021493A GB 2350738 B GB2350738 B GB 2350738B
Authority
GB
United Kingdom
Prior art keywords
scrambling
polarization
light signals
signals
light
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.)
Expired - Fee Related
Application number
GB0021493A
Other versions
GB0021493D0 (en
GB2350738A (en
Inventor
Kazue Otsuka
Hiroshi Onaka
Takafumi Terahara
Takao Naito
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 JP30030395A external-priority patent/JP3751667B2/en
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Publication of GB0021493D0 publication Critical patent/GB0021493D0/en
Publication of GB2350738A publication Critical patent/GB2350738A/en
Application granted granted Critical
Publication of GB2350738B publication Critical patent/GB2350738B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • 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
    • H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
    • H04B10/2557—Cross-phase modulation [XPM]
    • 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
    • H04B10/2543—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to fibre non-linearities, e.g. Kerr effect
    • H04B10/2563—Four-wave mixing [FWM]
    • 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
    • H04B10/50—Transmitters
    • H04B10/516—Details of coding or modulation
    • H04B10/532—Polarisation modulation
    • 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
    • G02B6/26—Optical coupling means
    • G02B6/27—Optical coupling means with polarisation selective and adjusting means
    • G02B6/2753—Optical coupling means with polarisation selective and adjusting means characterised by their function or use, i.e. of the complete device
    • G02B6/2786—Reducing the polarisation degree, i.e. depolarisers, scramblers, unpolarised output
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/06—Polarisation multiplex systems

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Nonlinear Science (AREA)
  • Optical Communication System (AREA)
GB0021493A 1995-11-17 1996-11-08 Method and apparatus for scrambling the polarization of light signals Expired - Fee Related GB2350738B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP30030395A JP3751667B2 (en) 1995-11-17 1995-11-17 Polarization-scrambled wavelength division multiplexing signal transmission method
GB9623503A GB2307368B (en) 1995-11-17 1996-11-08 Method and apparatus for scrambling the polarization of signal lights forming a wavelength division multiplied signal light

Publications (3)

Publication Number Publication Date
GB0021493D0 GB0021493D0 (en) 2000-10-18
GB2350738A GB2350738A (en) 2000-12-06
GB2350738B true GB2350738B (en) 2001-02-21

Family

ID=26310382

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0021493A Expired - Fee Related GB2350738B (en) 1995-11-17 1996-11-08 Method and apparatus for scrambling the polarization of light signals
GB0021491A Expired - Fee Related GB2350737B (en) 1995-11-17 1996-11-08 Method and apparatus for scrambling the polarization of light signals

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB0021491A Expired - Fee Related GB2350737B (en) 1995-11-17 1996-11-08 Method and apparatus for scrambling the polarization of light signals

Country Status (1)

Country Link
GB (2) GB2350738B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2284677A (en) * 1993-12-09 1995-06-14 At & T Corp Faraday rotator for a telecommunications system
EP0717524A2 (en) * 1994-12-14 1996-06-19 AT&T Corp. Polarization modulation in wavelength division multiplexed transmission systems

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2164355C (en) * 1994-12-14 2000-12-19 Neal S. Bergano Dynamically controlled polarization modulation in wavelength division multiplexed transmission systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2284677A (en) * 1993-12-09 1995-06-14 At & T Corp Faraday rotator for a telecommunications system
EP0717524A2 (en) * 1994-12-14 1996-06-19 AT&T Corp. Polarization modulation in wavelength division multiplexed transmission systems

Also Published As

Publication number Publication date
GB0021491D0 (en) 2000-10-18
GB2350737B (en) 2001-01-24
GB2350737A (en) 2000-12-06
GB0021493D0 (en) 2000-10-18
GB2350738A (en) 2000-12-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20141108