WO2001097412A3 - Optical communications system utilizing frequency division multiplexing - Google Patents

Optical communications system utilizing frequency division multiplexing Download PDF

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Publication number
WO2001097412A3
WO2001097412A3 PCT/US2001/015418 US0115418W WO0197412A3 WO 2001097412 A3 WO2001097412 A3 WO 2001097412A3 US 0115418 W US0115418 W US 0115418W WO 0197412 A3 WO0197412 A3 WO 0197412A3
Authority
WO
WIPO (PCT)
Prior art keywords
node
communications system
optical fiber
frequency division
reference signal
Prior art date
Application number
PCT/US2001/015418
Other languages
French (fr)
Other versions
WO2001097412A2 (en
Inventor
Laurence J Newell
David A Pechner
Augustus Elmer
David B Upham
James F Coward
Original Assignee
Kestrel Solutions 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
Priority claimed from US09/816,242 external-priority patent/US7154914B1/en
Application filed by Kestrel Solutions Inc filed Critical Kestrel Solutions Inc
Priority to AU2001296212A priority Critical patent/AU2001296212A1/en
Publication of WO2001097412A2 publication Critical patent/WO2001097412A2/en
Publication of WO2001097412A3 publication Critical patent/WO2001097412A3/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
    • 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
    • H04B10/2513—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to chromatic 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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2507—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion
    • H04B10/2569—Arrangements specific to fibre transmission for the reduction or elimination of distortion or dispersion due to polarisation mode dispersion [PMD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/06—Arrangements for supplying the carrier waves ; Arrangements for supplying synchronisation signals
    • H04J1/065—Synchronisation of carrier sources at the receiving station with the carrier source at the transmitting station
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J1/00—Frequency-division multiplex systems
    • H04J1/02—Details
    • H04J1/14—Arrangements providing for calling or supervisory signals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0298—Wavelength-division multiplex systems with sub-carrier multiplexing [SCM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5007—Internet protocol [IP] addresses
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00—Network arrangements, protocols or services for addressing or naming
    • H04L61/50—Address allocation
    • H04L61/5053—Lease time; Renewal aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0221—Power control, e.g. to keep the total optical power constant
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J3/00—Time-division multiplex systems
    • H04J3/02—Details
    • H04J3/06—Synchronising arrangements
    • H04J3/0635—Clock or time synchronisation in a network
    • H04J3/0685—Clock or time synchronisation in a node; Intranode synchronisation

Abstract

Overhead information is transmitted from a first node to a second node in an optical fiber communications system using a separate frequency band. A control channel containing the overhead information if frequency division multiplexed with electrical low-speed channels to form an electrical high-speed channel, which is converted from electrical to optical form to form an optical high-speed channel. The optical high-speed channel is transmitted over the optical fiber to the second node. In addition, attenuation caused by dispersion in an optical fiber communications system is compensated. The power of each low-speed channel is adjusted to compensate for the estimated attenuation caused by dispersion. In addition, two nodes in an optical fiber communications system are synchronized by transmitting a reference signal between the two. The reference signal (or a harmonic of the reference signal) is generated at one node and then transmitted across an optical fiber to the other node. Both nodes are synchronized to the reference signal, thus synchronizing each node to the other. In one embodiment, the refrence signal is combined with the electrical low-speed channels using frequency division multiplexing.
PCT/US2001/015418 2000-05-12 2001-05-11 Optical communications system utilizing frequency division multiplexing WO2001097412A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001296212A AU2001296212A1 (en) 2000-05-12 2001-05-11 Optical communications system utilizing frequency division multiplexing

Applications Claiming Priority (16)

Application Number Priority Date Filing Date Title
US56976100A 2000-05-12 2000-05-12
US09/569,761 2000-05-12
US57134900A 2000-05-16 2000-05-16
US09/571,349 2000-05-16
US20902000P 2000-06-01 2000-06-01
US60/209,020 2000-06-01
US21184900P 2000-06-15 2000-06-15
US21193500P 2000-06-15 2000-06-15
US60/211,849 2000-06-15
US60/211,935 2000-06-15
US25189300P 2000-12-06 2000-12-06
US60/251,893 2000-12-06
US27383301P 2001-03-06 2001-03-06
US60/273,833 2001-03-06
US09/816,242 2001-03-23
US09/816,242 US7154914B1 (en) 1998-03-05 2001-03-23 Through-timing of data transmitted across an optical communications system utilizing frequency division multiplexing

Publications (2)

Publication Number Publication Date
WO2001097412A2 WO2001097412A2 (en) 2001-12-20
WO2001097412A3 true WO2001097412A3 (en) 2003-10-02

Family

ID=27575176

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/015418 WO2001097412A2 (en) 2000-05-12 2001-05-11 Optical communications system utilizing frequency division multiplexing

Country Status (2)

Country Link
AU (1) AU2001296212A1 (en)
WO (1) WO2001097412A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1394968B1 (en) * 2002-08-28 2007-01-03 Matsushita Electric Industrial Co., Ltd. Optical transmission system

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5481542A (en) * 1993-11-10 1996-01-02 Scientific-Atlanta, Inc. Interactive information services control system
JPH0922038A (en) * 1995-07-10 1997-01-21 Kokusai Electric Co Ltd Light receiving circuit for transmitting sub-carrier multiplex analog light
US5612806A (en) * 1993-07-30 1997-03-18 Gte Laboratories Incorporated Acknowledgement using subcarrier multiplexed tones
JPH0998155A (en) * 1995-10-03 1997-04-08 Matsushita Electric Ind Co Ltd Optical transmission equipment and optical transmission system using the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5612806A (en) * 1993-07-30 1997-03-18 Gte Laboratories Incorporated Acknowledgement using subcarrier multiplexed tones
US5481542A (en) * 1993-11-10 1996-01-02 Scientific-Atlanta, Inc. Interactive information services control system
US6078412A (en) * 1995-03-10 2000-06-20 Matsushita Electric Industrial Co., Ltd. Optical transmitter and optical transmission system using the same
JPH0922038A (en) * 1995-07-10 1997-01-21 Kokusai Electric Co Ltd Light receiving circuit for transmitting sub-carrier multiplex analog light
JPH0998155A (en) * 1995-10-03 1997-04-08 Matsushita Electric Ind Co Ltd Optical transmission equipment and optical transmission system using the same

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
BLUMENTHAL D J ET AL: "FIBER-OPTIC LINKS SUPPORTING BASEBAND DATA AND SUBCARRIER-MULTIPLEXED CONTROL CHANNELS AND THE IMPACT OF MMIC PHOTONIC/MICROWAVE INTERFACES", IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, IEEE INC. NEW YORK, US, vol. 45, no. 8, PART 2, 1 August 1997 (1997-08-01), pages 1443 - 1451, XP000696775, ISSN: 0018-9480 *
LIEW S C ET AL: "A BROAD-BAND OPTICAL NETWORK BASED ON HIERARCHICAL MULTIPLEXING OF WAVELENGHTS AND RF SUBCARRIERS", JOURNAL OF LIGHTWAVE TECHNOLOGY, IEEE. NEW YORK, US, vol. 7, no. 11, 1 November 1989 (1989-11-01), pages 1825 - 1838, XP000104018, ISSN: 0733-8724 *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 05 30 May 1997 (1997-05-30) *
PATENT ABSTRACTS OF JAPAN vol. 1997, no. 08 29 August 1997 (1997-08-29) *

Also Published As

Publication number Publication date
WO2001097412A2 (en) 2001-12-20
AU2001296212A1 (en) 2001-12-24

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