WO2023147402A3 - Optical equalizer with bidirectional reentry for intersymbol interference mitigation - Google Patents

Optical equalizer with bidirectional reentry for intersymbol interference mitigation Download PDF

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Publication number
WO2023147402A3
WO2023147402A3 PCT/US2023/061338 US2023061338W WO2023147402A3 WO 2023147402 A3 WO2023147402 A3 WO 2023147402A3 US 2023061338 W US2023061338 W US 2023061338W WO 2023147402 A3 WO2023147402 A3 WO 2023147402A3
Authority
WO
WIPO (PCT)
Prior art keywords
optical
side ports
optical coupler
bidirectional
reentry
Prior art date
Application number
PCT/US2023/061338
Other languages
French (fr)
Other versions
WO2023147402A2 (en
Inventor
Peter Johannes Winzer
Original Assignee
Nubis Communications, Inc.
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 Nubis Communications, Inc. filed Critical Nubis Communications, Inc.
Publication of WO2023147402A2 publication Critical patent/WO2023147402A2/en
Publication of WO2023147402A3 publication Critical patent/WO2023147402A3/en

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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
    • H04B10/60—Receivers
    • H04B10/66—Non-coherent receivers, e.g. using direct detection
    • H04B10/67—Optical arrangements in the receiver

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

Abstract

An optical signal equalizer for equalizing optical signals comprises a first optical coupler configured to couple first-side ports to second-side ports, each port-coupling of the first optical coupler being characterized by an optical coupling ratio. Additionally, a second optical coupler is configured to couple first-side ports to second-side ports, each port-coupling of the second optical coupler being characterized by an optical coupling ratio. Further, optical signal paths extend from second-side ports of the first optical coupler to the first-side ports of the second optical coupler, one of the optical signal paths having a propagation delay different from another of the optical signal paths. The optical signal equalizer and bidirectional optical elements connect at least one second-side port of the second optical coupler to another of the second-side ports of the second optical coupler.
PCT/US2023/061338 2022-01-27 2023-01-26 Optical equalizer with bidirectional reentry for intersymbol interference mitigation WO2023147402A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202263303597P 2022-01-27 2022-01-27
US63/303,597 2022-01-27

Publications (2)

Publication Number Publication Date
WO2023147402A2 WO2023147402A2 (en) 2023-08-03
WO2023147402A3 true WO2023147402A3 (en) 2023-09-07

Family

ID=87472655

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2023/061338 WO2023147402A2 (en) 2022-01-27 2023-01-26 Optical equalizer with bidirectional reentry for intersymbol interference mitigation

Country Status (1)

Country Link
WO (1) WO2023147402A2 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030031406A1 (en) * 2001-08-08 2003-02-13 Takashi Saida Optical filter
US20100202783A1 (en) * 2009-02-06 2010-08-12 Luxdyne Ltd. Phase noise suppression in an optical system
US8976445B1 (en) * 2012-03-02 2015-03-10 University Of Southern California Optical tunable tapped-delay-lines using wavelength conversion and chromatic dispersion based delays
WO2018185513A1 (en) * 2017-04-03 2018-10-11 Nikon Corporation Optical filter, amplitude modulator, optical article and method for amplitude tuning an optical beam
US20200133080A1 (en) * 2018-10-29 2020-04-30 Liqxtal Technology Inc. Electrically tunable phase modulation element

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030031406A1 (en) * 2001-08-08 2003-02-13 Takashi Saida Optical filter
US20100202783A1 (en) * 2009-02-06 2010-08-12 Luxdyne Ltd. Phase noise suppression in an optical system
US8976445B1 (en) * 2012-03-02 2015-03-10 University Of Southern California Optical tunable tapped-delay-lines using wavelength conversion and chromatic dispersion based delays
WO2018185513A1 (en) * 2017-04-03 2018-10-11 Nikon Corporation Optical filter, amplitude modulator, optical article and method for amplitude tuning an optical beam
US20200133080A1 (en) * 2018-10-29 2020-04-30 Liqxtal Technology Inc. Electrically tunable phase modulation element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHANG YING: "All-fiber spectrum equalization filter with a reflection structure", OPTICAL ENGINEERING, SOC. OF PHOTO-OPTICAL INSTRUMENTATION ENGINEERS., BELLINGHAM, vol. 45, no. 7, 1 July 2006 (2006-07-01), BELLINGHAM , pages 070502, XP093090976, ISSN: 0091-3286, DOI: 10.1117/1.2219096 *

Also Published As

Publication number Publication date
WO2023147402A2 (en) 2023-08-03

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