DE69117152T2 - Übertragungssystem für polarisationsunempfindliche Übertragung von Signalen - Google Patents

Übertragungssystem für polarisationsunempfindliche Übertragung von Signalen

Info

Publication number
DE69117152T2
DE69117152T2 DE69117152T DE69117152T DE69117152T2 DE 69117152 T2 DE69117152 T2 DE 69117152T2 DE 69117152 T DE69117152 T DE 69117152T DE 69117152 T DE69117152 T DE 69117152T DE 69117152 T2 DE69117152 T2 DE 69117152T2
Authority
DE
Germany
Prior art keywords
retarder
transmission
polarisation
transmission system
insensitive
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.)
Expired - Fee Related
Application number
DE69117152T
Other languages
English (en)
Other versions
DE69117152D1 (de
Inventor
Deventer Mattijs Oskar Van
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koninklijke PTT Nederland NV
Original Assignee
Koninklijke PTT Nederland NV
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 Koninklijke PTT Nederland NV filed Critical Koninklijke PTT Nederland NV
Application granted granted Critical
Publication of DE69117152D1 publication Critical patent/DE69117152D1/de
Publication of DE69117152T2 publication Critical patent/DE69117152T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • G02B6/24—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
    • G02B6/2804—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers
    • G02B6/2861—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals forming multipart couplers without wavelength selective elements, e.g. "T" couplers, star couplers using fibre optic delay lines and optical elements associated with them, e.g. for use in signal processing, e.g. filtering
    • 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
    • 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
    • H04B10/532—Polarisation modulation

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Electromagnetism (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Communication System (AREA)
  • Transmitters (AREA)
  • Radio Transmission System (AREA)
  • Radio Relay Systems (AREA)
DE69117152T 1990-12-10 1991-12-06 Übertragungssystem für polarisationsunempfindliche Übertragung von Signalen Expired - Fee Related DE69117152T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL9002713A NL9002713A (nl) 1990-12-10 1990-12-10 Transmissiesysteem voor de polarisatie-ongevoelige overdracht van signalen.

Publications (2)

Publication Number Publication Date
DE69117152D1 DE69117152D1 (de) 1996-03-28
DE69117152T2 true DE69117152T2 (de) 1996-09-05

Family

ID=19858121

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69117152T Expired - Fee Related DE69117152T2 (de) 1990-12-10 1991-12-06 Übertragungssystem für polarisationsunempfindliche Übertragung von Signalen

Country Status (8)

Country Link
US (1) US5293264A (de)
EP (1) EP0490439B1 (de)
JP (1) JPH04302548A (de)
AT (1) ATE134283T1 (de)
CA (1) CA2057311C (de)
DE (1) DE69117152T2 (de)
ES (1) ES2084093T3 (de)
NL (1) NL9002713A (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2101797T3 (es) * 1991-09-06 1997-07-16 Nederland Ptt Sistemas de transmision para la transmision de señales independientemente de la polarizacion.
US5654818A (en) * 1996-02-09 1997-08-05 The United States Of America As Represented By The United States National Aeronautics And Space Administration Polarization independent electro-optic modulator
US5933555A (en) * 1997-05-01 1999-08-03 Alliance Fiber Optics Products, Inc. Optical recirculation depolarizer and method of depolarizing light
US6735350B1 (en) * 2001-08-31 2004-05-11 Nlight Photonics Corporation Passive depolarizer
CA2357955C (en) * 2001-09-28 2008-11-18 Itf Technologies Optiques Inc./Itf Optical Technologies Inc. All-fiber depolarizer

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5984215A (ja) * 1982-10-29 1984-05-15 ザ・ボード・オブ・トラスティーズ・オブ・ザ・レランド・スタンフォード・ジュニア・ユニバーシティ ファイバ光共振器
JPS6210937A (ja) * 1985-07-08 1987-01-19 Nec Corp 光ヘテロダイン・ホモダイン受信装置
JPS6249338A (ja) * 1985-08-28 1987-03-04 Nec Corp 光ヘテロダイン・ホモダイン検波受信装置
DE3621734A1 (de) * 1986-06-28 1988-01-07 Standard Elektrik Lorenz Ag Optischer ueberlagerungsempfaenger
DE3630619A1 (de) * 1986-09-09 1988-03-17 Standard Elektrik Lorenz Ag Optischer ueberlagerungsempfaenger
NL8602380A (nl) * 1986-09-22 1988-04-18 Philips Nv Inrichting voor optische heterodyne detektie van een optische signaalbundel en een optisch transmissiesysteem van een dergelijke inrichting voorzien.
NL8602864A (nl) * 1986-11-12 1988-06-01 Philips Nv Inrichting voor optische heterodyne detektie van een optische signaalbundel en optisch transmissiesysteem voorzien van een dergelijke inrichting.
JPS63229926A (ja) * 1987-03-18 1988-09-26 Fujitsu Ltd 光通信方式
JP2528686B2 (ja) * 1988-01-22 1996-08-28 日本電信電話株式会社 光パルス分離回路および光パルス多重回路
EP0361151A3 (de) * 1988-09-30 1991-11-06 Siemens Aktiengesellschaft Vorrichtung zum Erzeugen eines zwei voneinander verschiedene Polarisationszustände aufweisenden FSK-modulierten optischen Signals für ein optisches Übertragungssystem mit einem optischen Zweifilter-FSK-Überlagerungsempfänger
JPH0734080B2 (ja) * 1988-10-20 1995-04-12 富士通株式会社 コヒーレント光通信用ヘテロダイン検波受信装置
US4979235A (en) * 1989-04-17 1990-12-18 Tektronix, Inc. Polarization controller for use in optical fiber communication system
GB2245117B (en) * 1990-06-14 1994-04-06 Stc Plc Optical mixing for heterodyne detection

Also Published As

Publication number Publication date
US5293264A (en) 1994-03-08
NL9002713A (nl) 1992-07-01
EP0490439A1 (de) 1992-06-17
ES2084093T3 (es) 1996-05-01
ATE134283T1 (de) 1996-02-15
DE69117152D1 (de) 1996-03-28
CA2057311C (en) 1994-12-06
JPH04302548A (ja) 1992-10-26
EP0490439B1 (de) 1996-02-14

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee