KR20080072520A - 피드 포워드 잡음 상쇄 기능을 갖는 직접 변조 또는 외부변조된 레이저 광학 전송 시스템 - Google Patents

피드 포워드 잡음 상쇄 기능을 갖는 직접 변조 또는 외부변조된 레이저 광학 전송 시스템 Download PDF

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Publication number
KR20080072520A
KR20080072520A KR1020070139064A KR20070139064A KR20080072520A KR 20080072520 A KR20080072520 A KR 20080072520A KR 1020070139064 A KR1020070139064 A KR 1020070139064A KR 20070139064 A KR20070139064 A KR 20070139064A KR 20080072520 A KR20080072520 A KR 20080072520A
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KR
South Korea
Prior art keywords
laser
signal
optical
phase
noise
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Withdrawn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
KR1020070139064A
Other languages
English (en)
Korean (ko)
Inventor
존 이안넬리
Original Assignee
엠코어 코포레이션
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 US11/701,742 external-priority patent/US7881621B2/en
Application filed by 엠코어 코포레이션 filed Critical 엠코어 코포레이션
Publication of KR20080072520A publication Critical patent/KR20080072520A/ko
Withdrawn legal-status Critical Current

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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
    • 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
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • 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
    • 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

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Optical Communication System (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
KR1020070139064A 2007-02-02 2007-12-27 피드 포워드 잡음 상쇄 기능을 갖는 직접 변조 또는 외부변조된 레이저 광학 전송 시스템 Withdrawn KR20080072520A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/701,742 2007-02-02
US11/701,742 US7881621B2 (en) 2006-03-02 2007-02-02 Optical transmission system with directly modulated laser and feed forward noise cancellation

Publications (1)

Publication Number Publication Date
KR20080072520A true KR20080072520A (ko) 2008-08-06

Family

ID=39758739

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020070139064A Withdrawn KR20080072520A (ko) 2007-02-02 2007-12-27 피드 포워드 잡음 상쇄 기능을 갖는 직접 변조 또는 외부변조된 레이저 광학 전송 시스템

Country Status (4)

Country Link
JP (1) JP5512090B2 (https=)
KR (1) KR20080072520A (https=)
CN (1) CN101237283B (https=)
TW (1) TW200835182A (https=)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5424939B2 (ja) * 2010-03-01 2014-02-26 日本電信電話株式会社 光位相雑音抑圧回路及び位相揺らぎ検出回路及び位相揺らぎ検出方法
CN103575408B (zh) * 2013-10-29 2017-04-12 桂林电子科技大学 光纤延迟线相位控制的相干光探测系统及方法
JP6232334B2 (ja) * 2014-04-17 2017-11-15 日本電信電話株式会社 レーザ位相雑音低減装置
CN112393692B (zh) * 2019-08-14 2023-04-28 Oppo广东移动通信有限公司 激光投射模组、图像采集模组、深度相机及电子设备

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8602017D0 (en) * 1986-01-28 1986-03-05 British Telecomm Reducing fluctuations in radiation beam characteristic
US7848661B2 (en) * 2005-03-15 2010-12-07 Emcore Corporation Directly modulated laser optical transmission system with phase modulation

Also Published As

Publication number Publication date
CN101237283B (zh) 2016-02-24
JP5512090B2 (ja) 2014-06-04
JP2008193709A (ja) 2008-08-21
CN101237283A (zh) 2008-08-06
TW200835182A (en) 2008-08-16

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Legal Events

Date Code Title Description
PA0109 Patent application

Patent event code: PA01091R01D

Comment text: Patent Application

Patent event date: 20071227

PG1501 Laying open of application
PC1203 Withdrawal of no request for examination
WITN Application deemed withdrawn, e.g. because no request for examination was filed or no examination fee was paid