AU2002344522A1 - A method and apparatus of light signal modulation in light - Google Patents

A method and apparatus of light signal modulation in light

Info

Publication number
AU2002344522A1
AU2002344522A1 AU2002344522A AU2002344522A AU2002344522A1 AU 2002344522 A1 AU2002344522 A1 AU 2002344522A1 AU 2002344522 A AU2002344522 A AU 2002344522A AU 2002344522 A AU2002344522 A AU 2002344522A AU 2002344522 A1 AU2002344522 A1 AU 2002344522A1
Authority
AU
Australia
Prior art keywords
light
signal modulation
light signal
modulation
signal
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.)
Abandoned
Application number
AU2002344522A
Inventor
Xiaolong Guan
Changchun Li
Yujin Wang
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.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co 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 Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Publication of AU2002344522A1 publication Critical patent/AU2002344522A1/en
Abandoned 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
    • H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
    • H04B10/50575—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the modulator DC bias
    • 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
    • H04B10/572—Wavelength control
AU2002344522A 2001-11-27 2002-10-22 A method and apparatus of light signal modulation in light Abandoned AU2002344522A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN01271841.6 2001-11-27
CN 01271841 CN2517183Y (en) 2001-11-27 2001-11-27 Optical signal modulation device of optical communication system
PCT/CN2002/000742 WO2003047143A1 (en) 2001-11-27 2002-10-22 A method and apparatus of light signal modulation in light

Publications (1)

Publication Number Publication Date
AU2002344522A1 true AU2002344522A1 (en) 2003-06-10

Family

ID=4732873

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2002344522A Abandoned AU2002344522A1 (en) 2001-11-27 2002-10-22 A method and apparatus of light signal modulation in light

Country Status (3)

Country Link
CN (1) CN2517183Y (en)
AU (1) AU2002344522A1 (en)
WO (1) WO2003047143A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100344083C (en) * 2003-12-19 2007-10-17 青岛海信光电科技股份有限公司 Control method and control circuit of output light power and extinction ratio of light transmitter
CN101350674B (en) * 2007-07-16 2012-04-04 华为技术有限公司 Method and apparatus for adjusting phase as well as light modulator
US8543010B2 (en) * 2010-02-24 2013-09-24 Jds Uniphase Corporation Bias control in an optical modulator and transmitter
CN102834770A (en) * 2011-04-14 2012-12-19 华为技术有限公司 Optical modulation method and system
CN103049027A (en) * 2012-12-20 2013-04-17 浙江大学 Device and method for controlling electro-optical modulator in phase-sensitive OTDR (Optical Time Domain Reflectometer) sensor
CN107819519B (en) * 2016-09-13 2020-04-14 富士通株式会社 Device for measuring residual direct current component
CN113472436A (en) * 2021-07-09 2021-10-01 东莞铭普光磁股份有限公司 Optical module and method for monitoring luminous power thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2059074C (en) * 1991-01-10 2000-01-04 Kazuhiro Tanaka Optical processing device operating in a wavelength-synchronized mode and an optical circuit exchanger that uses such an optical processing device
US6002513A (en) * 1998-06-22 1999-12-14 Lucent Technologies Inc. Optical modulator providing independent control of attenuation and spectral tilt
AU4264300A (en) * 1999-07-02 2001-01-11 Corning O.T.I. S.P.A. Electro-optic modulators with internal impedance matching

Also Published As

Publication number Publication date
CN2517183Y (en) 2002-10-16
WO2003047143A1 (en) 2003-06-05

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase