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GB2382247B - Chirped NRZ optical transmission - Google Patents

Chirped NRZ optical transmission

Info

Publication number
GB2382247B
GB2382247B GB0221715A GB0221715A GB2382247B GB 2382247 B GB2382247 B GB 2382247B GB 0221715 A GB0221715 A GB 0221715A GB 0221715 A GB0221715 A GB 0221715A GB 2382247 B GB2382247 B GB 2382247B
Authority
GB
United Kingdom
Prior art keywords
optical transmission
nrz optical
chirped
chirped nrz
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.)
Expired - Fee Related
Application number
GB0221715A
Other versions
GB2382247A (en
GB0221715D0 (en
Inventor
Steve Webb
Steve Desbrulais
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.)
Ditech Networks Inc
Original Assignee
Ditech Networks Inc
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 US09/962,773 external-priority patent/US20030058508A1/en
Application filed by Ditech Networks Inc filed Critical Ditech Networks Inc
Publication of GB0221715D0 publication Critical patent/GB0221715D0/en
Publication of GB2382247A publication Critical patent/GB2382247A/en
Application granted granted Critical
Publication of GB2382247B publication Critical patent/GB2382247B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • 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
    • H04B10/501—Structural aspects
    • H04B10/503—Laser transmitters
    • H04B10/505—Laser transmitters using external modulation
    • H04B10/5051—Laser transmitters using external modulation using a series, i.e. cascade, combination of modulators
    • 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
    • H04B10/508—Pulse generation, e.g. generation of solitons
    • 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
    • H04B10/5162—Return-to-zero modulation schemes
    • 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
    • H04B10/54—Intensity modulation
    • H04B10/541—Digital intensity or amplitude modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2210/00—Indexing scheme relating to optical transmission systems
    • H04B2210/517—Optical NRZ to RZ conversion, or vice versa

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
GB0221715A 2001-09-24 2002-09-18 Chirped NRZ optical transmission Expired - Fee Related GB2382247B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/962,773 US20030058508A1 (en) 2001-09-24 2001-09-24 RZ optical transmission
US19802302A 2002-07-18 2002-07-18

Publications (3)

Publication Number Publication Date
GB0221715D0 GB0221715D0 (en) 2002-10-30
GB2382247A GB2382247A (en) 2003-05-21
GB2382247B true GB2382247B (en) 2004-01-07

Family

ID=26893405

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0221715A Expired - Fee Related GB2382247B (en) 2001-09-24 2002-09-18 Chirped NRZ optical transmission

Country Status (1)

Country Link
GB (1) GB2382247B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2034634A4 (en) * 2006-06-19 2013-10-16 Fujitsu Ltd Optical signal processor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1083685A2 (en) * 1999-09-09 2001-03-14 Oki Electric Industry Co., Ltd. Optical signal generating circuit and optical transmission line
EP1087256A2 (en) * 1999-09-27 2001-03-28 Alcatel Optical modulator
WO2002003577A1 (en) * 2000-06-30 2002-01-10 Corning Incorporated Optimal dispersion compensation for return-to-zero transmission over non-zero dispersion shifted fibers

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1083685A2 (en) * 1999-09-09 2001-03-14 Oki Electric Industry Co., Ltd. Optical signal generating circuit and optical transmission line
EP1087256A2 (en) * 1999-09-27 2001-03-28 Alcatel Optical modulator
WO2002003577A1 (en) * 2000-06-30 2002-01-10 Corning Incorporated Optimal dispersion compensation for return-to-zero transmission over non-zero dispersion shifted fibers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Electronics Letters, Vol. 35, No. 12, June 1999, pages 989-990 *
IEEE Photonics Technology Letters, Vol. 1, No. 10, October 1989, pages 346-348 *

Also Published As

Publication number Publication date
GB2382247A (en) 2003-05-21
GB0221715D0 (en) 2002-10-30

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090918