MY210251A - Method and system for controlling iq signal phase error - Google Patents

Method and system for controlling iq signal phase error

Info

Publication number
MY210251A
MY210251A MYPI2021005652A MYPI2021005652A MY210251A MY 210251 A MY210251 A MY 210251A MY PI2021005652 A MYPI2021005652 A MY PI2021005652A MY PI2021005652 A MYPI2021005652 A MY PI2021005652A MY 210251 A MY210251 A MY 210251A
Authority
MY
Malaysia
Prior art keywords
phase error
controlling
signal
signal phase
coherent optical
Prior art date
Application number
MYPI2021005652A
Inventor
Shichao Zhu
Quan Cao
Original Assignee
Fiberhome Telecommunication Tech Co Ltd
Wuhan Fisilink Microelectronics Tech Co Ltd
Wuhan Optical Valley Information Optoelectronics Innovation Center 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 Fiberhome Telecommunication Tech Co Ltd, Wuhan Fisilink Microelectronics Tech Co Ltd, Wuhan Optical Valley Information Optoelectronics Innovation Center Co Ltd filed Critical Fiberhome Telecommunication Tech Co Ltd
Publication of MY210251A publication Critical patent/MY210251A/en

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
    • H04B10/60—Receivers
    • H04B10/61—Coherent receivers
    • H04B10/616—Details of the electronic signal processing in coherent optical receivers
    • H04B10/6165—Estimation of the phase of the received optical signal, phase error estimation or phase error correction

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Communication System (AREA)

Abstract

The present invention relates to the technical field of coherent optical modules. Disclosed are a method and a system for controlling IQ signal phase error, the method comprising the following steps: controlling the IQ signal phase error by adjusting the intensity coefficients of channels corresponding to I signal and Q signal, respectively. The present invention can reduce or even eliminate the quadrature angle phase error of IQ signals to improve the performance of the coherent optical communication system without providing a phase shifter or changing the original coherent optical communication system architecture. (Fig. 1)
MYPI2021005652A 2019-07-29 2019-12-20 Method and system for controlling iq signal phase error MY210251A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201910687292.3A CN110190907B (en) 2019-07-29 2019-07-29 A kind of I/Q signal phase error control method and system
PCT/CN2019/126870 WO2021017382A1 (en) 2019-07-29 2019-12-20 Method and system for controlling iq signal phase error

Publications (1)

Publication Number Publication Date
MY210251A true MY210251A (en) 2025-09-04

Family

ID=67725915

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2021005652A MY210251A (en) 2019-07-29 2019-12-20 Method and system for controlling iq signal phase error

Country Status (3)

Country Link
CN (1) CN110190907B (en)
MY (1) MY210251A (en)
WO (1) WO2021017382A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110190907B (en) * 2019-07-29 2019-11-01 烽火通信科技股份有限公司 A kind of I/Q signal phase error control method and system
CN115021827B (en) * 2022-05-16 2023-05-09 烽火通信科技股份有限公司 A phase angle locking method and system for a coherent receiver

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101815056B (en) * 2010-03-05 2012-09-05 华为技术有限公司 IQ unbalanced calibration method and equipment of baseband signals in wireless communication receiving machine
CN104168069B (en) * 2014-08-12 2016-06-01 武汉邮电科学研究院 The modulating system of phase controlled rotation in the coherent light communications field and modulator approach
CN104219186A (en) * 2014-09-04 2014-12-17 中国电子科技集团公司第二十九研究所 An Analog IQ Modulation Error Correction Method Based on IQ Baseband Signal Amplitude Adjustment
US9787405B2 (en) * 2015-11-19 2017-10-10 Elenion Advanced Technology, LLC Optical dual resonator modulation system and method, and optical dual resonator modulator therefor
CN106054570B (en) * 2016-04-26 2019-06-25 上海大学 Intensity Transfer Equation Realizing Larger Phase Reconstruction Method of Single Digital Hologram
US9985812B1 (en) * 2016-12-21 2018-05-29 Keysight Technologies, Inc. Systems and methods for IQ demodulation with error correction
JP2019057842A (en) * 2017-09-21 2019-04-11 住友電気工業株式会社 Digital coherent receiver
US10205535B1 (en) * 2017-12-14 2019-02-12 Elenion Technologies, Llc Coherent optical receiver
CN110048765B (en) * 2018-09-30 2021-06-22 南京大学 phi-OTDR quantitative measurement method based on integral least square fitting
CN109361472B (en) * 2018-11-22 2020-05-12 武汉邮电科学研究院有限公司 Polarization-independent coherent light access method and system
CN110190907B (en) * 2019-07-29 2019-11-01 烽火通信科技股份有限公司 A kind of I/Q signal phase error control method and system

Also Published As

Publication number Publication date
CN110190907B (en) 2019-11-01
WO2021017382A1 (en) 2021-02-04
CN110190907A (en) 2019-08-30

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