IT1296833B1 - Circuito per sistema wdm ottico con dimensione ridotta e configurazione circuitale semplificata - Google Patents

Circuito per sistema wdm ottico con dimensione ridotta e configurazione circuitale semplificata

Info

Publication number
IT1296833B1
IT1296833B1 IT97MI002676A ITMI972676A IT1296833B1 IT 1296833 B1 IT1296833 B1 IT 1296833B1 IT 97MI002676 A IT97MI002676 A IT 97MI002676A IT MI972676 A ITMI972676 A IT MI972676A IT 1296833 B1 IT1296833 B1 IT 1296833B1
Authority
IT
Italy
Prior art keywords
circuit
reduced size
wdm system
optical wdm
circuit configuration
Prior art date
Application number
IT97MI002676A
Other languages
English (en)
Inventor
Atsushi Toyohara
Original Assignee
Nec Corp
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 Nec Corp filed Critical Nec Corp
Publication of ITMI972676A1 publication Critical patent/ITMI972676A1/it
Application granted granted Critical
Publication of IT1296833B1 publication Critical patent/IT1296833B1/it

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/12007—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer
    • G02B6/12009—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides
    • G02B6/12019—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind forming wavelength selective elements, e.g. multiplexer, demultiplexer comprising arrayed waveguide grating [AWG] devices, i.e. with a phased array of waveguides characterised by the optical interconnection to or from the AWG devices, e.g. integration or coupling with lasers or photodiodes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • G02B6/29382—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM including at least adding or dropping a signal, i.e. passing the majority of signals
    • G02B6/29383—Adding and dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0206—Express channels arrangements
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optical Communication System (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Optical Integrated Circuits (AREA)
  • Light Guides In General And Applications Therefor (AREA)
IT97MI002676A 1996-12-03 1997-12-02 Circuito per sistema wdm ottico con dimensione ridotta e configurazione circuitale semplificata IT1296833B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8322458A JP2977024B2 (ja) 1996-12-03 1996-12-03 波長多重通信用光回路及びこれを含む光伝送通信システム

Publications (2)

Publication Number Publication Date
ITMI972676A1 ITMI972676A1 (it) 1999-06-02
IT1296833B1 true IT1296833B1 (it) 1999-08-02

Family

ID=18143887

Family Applications (1)

Application Number Title Priority Date Filing Date
IT97MI002676A IT1296833B1 (it) 1996-12-03 1997-12-02 Circuito per sistema wdm ottico con dimensione ridotta e configurazione circuitale semplificata

Country Status (4)

Country Link
US (1) US5953470A (it)
JP (1) JP2977024B2 (it)
FR (1) FR2756689A1 (it)
IT (1) IT1296833B1 (it)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10173597A (ja) * 1996-12-06 1998-06-26 Nec Corp 光イコライザ
US6801686B2 (en) * 1997-06-06 2004-10-05 Novera Optics, Inc. Methods and apparatus for measuring the power spectrum of optical signals
US6539148B1 (en) * 1997-06-06 2003-03-25 Novera Optics, Inc. Channel equalizer with acousto-optic variable attenuators
US6510261B2 (en) 1997-06-06 2003-01-21 Novera Optics, Inc. Acousto-optic variable attenuator with active cancellation of back reflections
US6640027B2 (en) 1997-06-06 2003-10-28 Novera Optics, Inc. Gain flattening tunable filter
US6850655B2 (en) 1997-06-16 2005-02-01 Novera Optics, Inc. Optical apparatus with faraday rotator, static gain flattening filter and variable optical attenuator
DE69836670T2 (de) 1997-10-28 2007-10-04 Nec Corp. Optischer Ein-/Ausfügemultiplexer
US6240222B1 (en) * 1998-09-10 2001-05-29 Agere Systems Optoelectronics Guardian Corp. Wavelength specific operations in optical systems
GB2344238B (en) * 1998-11-28 2001-02-21 Marconi Comm Ltd Photonics system
US6345142B1 (en) * 1999-02-18 2002-02-05 Fujitsu Limited Optical attenuation device having different type magneto-optical optical attenuation elements cascaded together
US6509986B1 (en) * 1999-02-26 2003-01-21 Ciena Corporation WDM ring transmission system having amplified dropped channels
AU2011101A (en) * 1999-12-27 2001-07-09 Optical Technologies Usa Corp Optical apparatus for dropping and/or adding optical signals
DE10000255A1 (de) * 2000-01-05 2001-07-26 Infineon Technologies Ag Anordnung zum Abgleich von WDM-Kanälen
GB0013366D0 (en) * 2000-06-01 2000-07-26 Vipswitch Inc Optical communicator
US20020051603A1 (en) * 2000-10-18 2002-05-02 Hajjar Roger A. Free-space and integrated add-drop optical modules for optical wavelength-division multiplexed systems
US20020196504A1 (en) * 2001-05-29 2002-12-26 Nec Corporation Gain equalizer for two-way transmission and monitor circuit for two-way transmission
KR100547780B1 (ko) * 2003-06-19 2006-01-31 삼성전자주식회사 순환기와 반사기를 이용한 광 분기/결합기
FR2863125B1 (fr) * 2003-12-02 2006-12-29 Cit Alcatel Dispositif optique reconfigurable a insertion/extraction controlee(s)
US8131150B2 (en) 2006-06-07 2012-03-06 At&T Intellectual Property Ii, L.P. Tunable bidirectional multiplexer/demultiplexer for optical transmission system
US9158104B2 (en) * 2012-05-29 2015-10-13 Hoya Corporation Optical coupler device and confocal observation system
US9077473B2 (en) * 2013-01-04 2015-07-07 Telefonaktiebolaget L M Ericsson (Publ) Optical network apparatus for self-seeded communications
GB2549500A (en) * 2016-04-19 2017-10-25 Airbus Operations Ltd Node for an optical network

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5440416A (en) * 1993-02-24 1995-08-08 At&T Corp. Optical network comprising a compact wavelength-dividing component
DE69528415T2 (de) * 1994-05-25 2003-06-18 At & T Corp Optisches Übertragungssystem mit verstellbarer Dispersionskompensation
US5680235A (en) * 1995-04-13 1997-10-21 Telefonaktiebolaget Lm Ericsson Optical multichannel system
JP3463717B2 (ja) * 1995-08-24 2003-11-05 三菱電機株式会社 波長多重光伝送装置および波長多重光伝送システム
JP3356365B2 (ja) * 1995-09-19 2002-12-16 ケイディーディーアイ株式会社 光ａｄｍ装置
US5751456A (en) * 1996-02-20 1998-05-12 Lucent Technologies Inc. Multiwavelength add/drop multiplexer
US5793507A (en) * 1996-05-31 1998-08-11 Lucent Technologies Inc. Discretely chirped multiple wavelength optical source for use in a passive optical network telecommunications system

Also Published As

Publication number Publication date
FR2756689A1 (fr) 1998-06-05
ITMI972676A1 (it) 1999-06-02
JP2977024B2 (ja) 1999-11-10
JPH10164021A (ja) 1998-06-19
US5953470A (en) 1999-09-14

Similar Documents

Publication Publication Date Title
IT1296833B1 (it) Circuito per sistema wdm ottico con dimensione ridotta e configurazione circuitale semplificata
DE69722291D1 (de) Optisches nachrichtensystem
DE69737348D1 (de) Optisches Querverbindungssystem
DE69731446D1 (de) Optisches system
DE69726625D1 (de) Photographisches optisches System
DE69629358D1 (de) Optisches Speichergerät
DE69704485T2 (de) Sichtsystem
DE69740015D1 (de) Optisches Übertragungssystem
DE69705003T2 (de) Optisches bildleitersystem
DE69701107T2 (de) Optisches Plattengerät
NO983853D0 (no) Optisk forbindelse
BR9507021A (pt) Sistema óptico de projeçao
DE69730628D1 (de) Optisches Plattengerät
IT1289922B1 (it) Circuito regolatore-riduttore
DE69714248T2 (de) Optischer isolator
DE69614830T2 (de) Optisches Speichergerät
DE69805163D1 (de) Optisches system
DE69511516T2 (de) Optisches Wiedergabegerät
DE69503001D1 (de) Optisches Abtastsystem
DE69625033T2 (de) Optisches Abtastsystem
BR9503272A (pt) Dispositivo e sistema de comunicações óticas
DE69721447D1 (de) Optisches Abtastsystem
DE69731781D1 (de) Optisches Gerät
DE69531574D1 (de) Optisches Verbindungssystem
DE69514849D1 (de) Optisches Abtastsystem

Legal Events

Date Code Title Description
0001 Granted