EP1456917A4 - Return path transmitter having a closed laser control loop that is employed in a hybrid fiber / coax transmission system - Google Patents

Return path transmitter having a closed laser control loop that is employed in a hybrid fiber / coax transmission system

Info

Publication number
EP1456917A4
EP1456917A4 EP02798512A EP02798512A EP1456917A4 EP 1456917 A4 EP1456917 A4 EP 1456917A4 EP 02798512 A EP02798512 A EP 02798512A EP 02798512 A EP02798512 A EP 02798512A EP 1456917 A4 EP1456917 A4 EP 1456917A4
Authority
EP
European Patent Office
Prior art keywords
employed
transmission system
control loop
return path
laser control
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.)
Withdrawn
Application number
EP02798512A
Other languages
German (de)
French (fr)
Other versions
EP1456917A2 (en
Inventor
Timothy J Brophy
Brian T Harte
Daniel C Fiorella Iii
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.)
Arris Technology Inc
Original Assignee
Arris Technology Inc
General Instrument Corp
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 Arris Technology Inc, General Instrument Corp filed Critical Arris Technology Inc
Priority claimed from PCT/US2002/039871 external-priority patent/WO2003050572A2/en
Publication of EP1456917A2 publication Critical patent/EP1456917A2/en
Publication of EP1456917A4 publication Critical patent/EP1456917A4/en
Withdrawn legal-status Critical Current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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2575—Radio-over-fibre, e.g. radio frequency signal modulated onto an optical carrier
    • H04B10/25751—Optical arrangements for CATV or video distribution
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/0683—Stabilisation of laser output parameters by monitoring the optical output parameters
    • 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
    • H04B10/58—Compensation for non-linear transmitter output
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/0617—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium using memorised or pre-programmed laser characteristics
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/06804—Stabilisation of laser output parameters by monitoring an external parameter, e.g. temperature
    • 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
    • H01S5/00—Semiconductor lasers
    • H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
    • H01S5/068—Stabilisation of laser output parameters
    • H01S5/06808—Stabilisation of laser output parameters by monitoring the electrical laser parameters, e.g. voltage or current
EP02798512A 2001-12-12 2002-12-12 Return path transmitter having a closed laser control loop that is employed in a hybrid fiber / coax transmission system Withdrawn EP1456917A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US34079601P 2001-12-12 2001-12-12
US340796P 2001-12-12
PCT/US2002/039871 WO2003050572A2 (en) 2001-12-12 2002-12-12 Return path transmitter having a closed laser control loop

Publications (2)

Publication Number Publication Date
EP1456917A2 EP1456917A2 (en) 2004-09-15
EP1456917A4 true EP1456917A4 (en) 2005-12-07

Family

ID=32770189

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02798512A Withdrawn EP1456917A4 (en) 2001-12-12 2002-12-12 Return path transmitter having a closed laser control loop that is employed in a hybrid fiber / coax transmission system

Country Status (2)

Country Link
EP (1) EP1456917A4 (en)
CN (1) CN1618152A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9735884B2 (en) 2012-08-28 2017-08-15 Nec Corporation Optical transmitter and bias voltage control method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5604757A (en) * 1994-05-10 1997-02-18 E-Tek Dynamics, Inc. Multichannel, programmable laser diode power supply, stabilizer and controller
WO2000025459A2 (en) * 1998-10-09 2000-05-04 Scientific-Atlanta, Inc. Digital optical transceiver
US6122302A (en) * 1997-12-10 2000-09-19 Harmonic Inc. Automatic compensation of CNR and OMI in a laser transmitter
US6233262B1 (en) * 1997-08-11 2001-05-15 Eci Telecom Ltd. Device and method for monitoring and controlling laser wavelength
US6252692B1 (en) * 1996-06-07 2001-06-26 Nortel Networks Limited Optical fibre transmission systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5604757A (en) * 1994-05-10 1997-02-18 E-Tek Dynamics, Inc. Multichannel, programmable laser diode power supply, stabilizer and controller
US6252692B1 (en) * 1996-06-07 2001-06-26 Nortel Networks Limited Optical fibre transmission systems
US6233262B1 (en) * 1997-08-11 2001-05-15 Eci Telecom Ltd. Device and method for monitoring and controlling laser wavelength
US6122302A (en) * 1997-12-10 2000-09-19 Harmonic Inc. Automatic compensation of CNR and OMI in a laser transmitter
WO2000025459A2 (en) * 1998-10-09 2000-05-04 Scientific-Atlanta, Inc. Digital optical transceiver

Also Published As

Publication number Publication date
EP1456917A2 (en) 2004-09-15
CN1618152A (en) 2005-05-18

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Legal Events

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Effective date: 20040729

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Effective date: 20051026

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Effective date: 20060811