GB2269067B - Modulation depth control for FSK/IM optical transmitter - Google Patents

Modulation depth control for FSK/IM optical transmitter

Info

Publication number
GB2269067B
GB2269067B GB9215554A GB9215554A GB2269067B GB 2269067 B GB2269067 B GB 2269067B GB 9215554 A GB9215554 A GB 9215554A GB 9215554 A GB9215554 A GB 9215554A GB 2269067 B GB2269067 B GB 2269067B
Authority
GB
United Kingdom
Prior art keywords
fsk
optical transmitter
depth control
modulation depth
modulation
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
GB9215554A
Other versions
GB2269067A (en
GB9215554D0 (en
Inventor
Jonathan Paul King
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.)
Nortel Networks Ltd
Original Assignee
Northern Telecom 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
Application filed by Northern Telecom Ltd filed Critical Northern Telecom Ltd
Priority to GB9215554A priority Critical patent/GB2269067B/en
Publication of GB9215554D0 publication Critical patent/GB9215554D0/en
Publication of GB2269067A publication Critical patent/GB2269067A/en
Application granted granted Critical
Publication of GB2269067B publication Critical patent/GB2269067B/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
    • H04B10/564—Power control
    • 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
    • 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
    • H04B10/504—Laser transmitters using direct 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
    • H04B10/516—Details of coding or modulation
    • H04B10/54—Intensity modulation
    • H04B10/541—Digital intensity or amplitude modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • 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
    • H04B10/548—Phase or frequency modulation
    • H04B10/556—Digital modulation, e.g. differential phase shift keying [DPSK] or frequency shift keying [FSK]
    • H04B10/5563—Digital frequency modulation

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)
  • Semiconductor Lasers (AREA)
GB9215554A 1992-07-22 1992-07-22 Modulation depth control for FSK/IM optical transmitter Expired - Fee Related GB2269067B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9215554A GB2269067B (en) 1992-07-22 1992-07-22 Modulation depth control for FSK/IM optical transmitter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9215554A GB2269067B (en) 1992-07-22 1992-07-22 Modulation depth control for FSK/IM optical transmitter

Publications (3)

Publication Number Publication Date
GB9215554D0 GB9215554D0 (en) 1992-09-02
GB2269067A GB2269067A (en) 1994-01-26
GB2269067B true GB2269067B (en) 1995-10-25

Family

ID=10719100

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9215554A Expired - Fee Related GB2269067B (en) 1992-07-22 1992-07-22 Modulation depth control for FSK/IM optical transmitter

Country Status (1)

Country Link
GB (1) GB2269067B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111817782A (en) * 2020-06-24 2020-10-23 武汉光迅科技股份有限公司 Calibration method, device, equipment and storage medium

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004061956A (en) * 2002-07-30 2004-02-26 Fujitsu Ltd Optical transmitter/receiver and its controlling method

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111817782A (en) * 2020-06-24 2020-10-23 武汉光迅科技股份有限公司 Calibration method, device, equipment and storage medium
CN111817782B (en) * 2020-06-24 2021-10-12 武汉光迅科技股份有限公司 Calibration method, device, equipment and storage medium

Also Published As

Publication number Publication date
GB2269067A (en) 1994-01-26
GB9215554D0 (en) 1992-09-02

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Legal Events

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

Effective date: 20080722