CA2069944A1 - Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links - Google Patents

Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links

Info

Publication number
CA2069944A1
CA2069944A1 CA2069944A CA2069944A CA2069944A1 CA 2069944 A1 CA2069944 A1 CA 2069944A1 CA 2069944 A CA2069944 A CA 2069944A CA 2069944 A CA2069944 A CA 2069944A CA 2069944 A1 CA2069944 A1 CA 2069944A1
Authority
CA
Canada
Prior art keywords
radio frequency
modulated radio
octave
bandwidth
frequency signals
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
CA2069944A
Other languages
French (fr)
Other versions
CA2069944C (en
Inventor
Rezin E. Pidgeon, Jr.
Frank Little
Leo Thompson
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.)
Scientific Atlanta LLC
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2069944A1 publication Critical patent/CA2069944A1/en
Application granted granted Critical
Publication of CA2069944C publication Critical patent/CA2069944C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/22—Adaptations for optical transmission
    • 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
    • H04B10/501—Structural aspects
    • H04B10/506—Multiwavelength transmitters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]

Abstract

An optical communications system including a plurality of modulated radio frequency carriers which span more than an octave in bandwidth. In one implementation, the carriers are grouped into ranges which span less than an octave in bandwidth and the individual groups are transmitted over unique optical links. In another implementation, the groups are multiplexed on one optical link by using different wavelengths. In still another implementation, several of the bands are up-converted to the highest band of interest and then transmitted, either over single or multiple links. The resulting optical signals are demodulated and then down-converted before they are recombined into the broadband signal in excess of an octave in bandwidth.
CA002069944A 1989-12-04 1990-11-21 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links Expired - Fee Related CA2069944C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US446,461 1989-12-04
US07/446,461 US5191459A (en) 1989-12-04 1989-12-04 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links

Publications (2)

Publication Number Publication Date
CA2069944A1 true CA2069944A1 (en) 1991-06-05
CA2069944C CA2069944C (en) 1996-08-13

Family

ID=23772670

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002069944A Expired - Fee Related CA2069944C (en) 1989-12-04 1990-11-21 Method and apparatus for transmitting broadband amplitude modulated radio frequency signals over optical links

Country Status (10)

Country Link
US (3) US5191459A (en)
EP (1) EP0507799B1 (en)
JP (1) JPH05502563A (en)
AT (1) ATE167968T1 (en)
AU (1) AU647065B2 (en)
CA (1) CA2069944C (en)
DE (1) DE69032454T2 (en)
DK (1) DK0507799T3 (en)
ES (1) ES2118748T3 (en)
WO (1) WO1991008631A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114070429A (en) * 2021-10-28 2022-02-18 中国电子科技集团公司第二十九研究所 Method for combining radio frequency internal and external correction and computer storage medium

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Publication number Priority date Publication date Assignee Title
CN114070429A (en) * 2021-10-28 2022-02-18 中国电子科技集团公司第二十九研究所 Method for combining radio frequency internal and external correction and computer storage medium

Also Published As

Publication number Publication date
EP0507799B1 (en) 1998-07-01
AU6914491A (en) 1991-06-26
ES2118748T3 (en) 1998-10-01
ATE167968T1 (en) 1998-07-15
EP0507799A1 (en) 1992-10-14
CA2069944C (en) 1996-08-13
US5500758A (en) 1996-03-19
WO1991008631A1 (en) 1991-06-13
DE69032454T2 (en) 1999-03-25
DE69032454D1 (en) 1998-08-06
DK0507799T3 (en) 1998-10-26
US5379141A (en) 1995-01-03
AU647065B2 (en) 1994-03-17
EP0507799A4 (en) 1993-06-09
JPH05502563A (en) 1993-04-28
US5191459A (en) 1993-03-02

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