IT8420840A1 - "attenuatore a fibre ottiche del tipo in-linea" - Google Patents

"attenuatore a fibre ottiche del tipo in-linea"

Info

Publication number
IT8420840A1
IT8420840A1 IT1984A20840A IT2084084A IT8420840A1 IT 8420840 A1 IT8420840 A1 IT 8420840A1 IT 1984A20840 A IT1984A20840 A IT 1984A20840A IT 2084084 A IT2084084 A IT 2084084A IT 8420840 A1 IT8420840 A1 IT 8420840A1
Authority
IT
Italy
Prior art keywords
fiber optic
line type
optic attenuator
attenuator
line
Prior art date
Application number
IT1984A20840A
Other languages
English (en)
Other versions
IT8420840A0 (it
IT1174082B (it
Original Assignee
American Telephone & Telegraph Company
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 American Telephone & Telegraph Company filed Critical American Telephone & Telegraph Company
Publication of IT8420840A0 publication Critical patent/IT8420840A0/it
Publication of IT8420840A1 publication Critical patent/IT8420840A1/it
Application granted granted Critical
Publication of IT1174082B publication Critical patent/IT1174082B/it

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D16/00—Control of fluid pressure
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/02—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the intensity of light
    • 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
    • G02B6/105—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type having optical polarisation effects
    • 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
    • G02B6/264—Optical coupling means with optical elements between opposed fibre ends which perform a function other than beam splitting
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/0128—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects
    • G02F1/0131—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence
    • G02F1/0134—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on electro-mechanical, magneto-mechanical, elasto-optic effects based on photo-elastic effects, e.g. mechanically induced birefringence in optical waveguides

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Fluid Mechanics (AREA)
  • Engineering & Computer Science (AREA)
  • Automation & Control Theory (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
IT20840/84A 1983-05-09 1984-05-08 Attenuatore a fibre ottiche del tipo in-linea IT1174082B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/492,817 US4529262A (en) 1983-05-09 1983-05-09 Inline optical fiber attentuator

Publications (3)

Publication Number Publication Date
IT8420840A0 IT8420840A0 (it) 1984-05-08
IT8420840A1 true IT8420840A1 (it) 1985-11-08
IT1174082B IT1174082B (it) 1987-07-01

Family

ID=23957755

Family Applications (1)

Application Number Title Priority Date Filing Date
IT20840/84A IT1174082B (it) 1983-05-09 1984-05-08 Attenuatore a fibre ottiche del tipo in-linea

Country Status (8)

Country Link
US (1) US4529262A (it)
JP (2) JPS59211002A (it)
KR (1) KR910005838B1 (it)
CA (1) CA1214058A (it)
DE (1) DE3417164A1 (it)
FR (1) FR2545946B1 (it)
GB (1) GB2140167B (it)
IT (1) IT1174082B (it)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4652079A (en) * 1983-08-26 1987-03-24 The Board Of Trustees Of The Leland Stanford Junior University High speed pulse train generator
US4723828A (en) * 1984-11-09 1988-02-09 Northern Telecom Limited Bandwidth enhancement of multimode optical transmisson lines
US4793678A (en) * 1985-05-20 1988-12-27 Nippon Telegraph And Telephone Corporation Fiber optic polarization controller
GB2188164B (en) * 1986-03-19 1989-11-15 Stc Plc Optical fibre polariser
US4714317A (en) * 1986-04-14 1987-12-22 Siecor Corporation Biconic optical fiber connector/attenuator
GB8625530D0 (en) * 1986-10-24 1986-11-26 Goodall D M Optical apparatus
US4842358A (en) * 1987-02-20 1989-06-27 Litton Systems, Inc. Apparatus and method for optical signal source stabilization
US4887900A (en) * 1987-02-20 1989-12-19 Litton Systems, Inc. Polarization maintaining fiber interferometer and method for source stabilization
US4852964A (en) * 1987-03-04 1989-08-01 Storm Products Co. Fiber optic coil cord
DE8804337U1 (de) * 1988-03-30 1988-05-26 Denk, Franz, St. Peter Schreibtisch-Informationsträger für das Anbringen von Notizzetteln
US5040862A (en) * 1990-05-07 1991-08-20 Corning Incorporated Method of trimming optical power
US5167444A (en) * 1990-08-13 1992-12-01 Litton Systems, Inc. Apparatus and method for optical signal source stabilization
JP2633073B2 (ja) * 1990-09-07 1997-07-23 株式会社精工技研 可変型光減衰器
EP0694173A1 (en) * 1992-01-02 1996-01-31 Adc Telecommunications, Inc. Overlapping fusion attenuator
US5319733A (en) * 1992-01-02 1994-06-07 Adc Telecommunications, Inc. Variable fiber optical attenuator
US5311614A (en) * 1992-03-31 1994-05-10 The Whitaker Corporation Single mode fiber optic variable attenuator with supported optical fiber
US5428700A (en) * 1994-07-29 1995-06-27 Litton Systems, Inc. Laser stabilization
US5633974A (en) * 1994-09-27 1997-05-27 The Whitaker Corporation All fiber attenuator
US5651085A (en) * 1994-09-27 1997-07-22 Chia; Shin-Lo All fiber attenuator
TW312744B (it) * 1994-10-11 1997-08-11 Adoban Tesuto Kk
US5561522A (en) * 1995-03-27 1996-10-01 Alliedsignal Inc. Integrated birefringent-biased pressure and temperature sensor system
US5694512A (en) * 1996-07-09 1997-12-02 Framatome Connectors Canada Inc. Compact tunable wavelength independent all-fiber optical attenuator and method of making same
DE19814497C2 (de) * 1998-04-01 2001-01-25 Deutsche Telekom Ag Verfahren zur Kompensation der Polarisationsmodendispersion in einer optischen Übertragungsstrecke und Vorrichtung zu dessen Durchführung
US6385383B1 (en) * 1998-10-05 2002-05-07 Lucent Technologies Inc. Optical attenuator structure and method using polymer material
US6363203B1 (en) 1999-09-16 2002-03-26 Agere Systems Guardian Corp. Variable fiber optic attenuator
DE19958600A1 (de) * 1999-12-06 2001-06-07 Abb Research Ltd Verfahren zur Herstellung eines faseroptischen Wellenleiters
US6417948B1 (en) 1999-12-24 2002-07-09 Corning Incorporated Variable delay device for an optical component such as a polarization mode dispersion compensator
US6556732B1 (en) 2000-06-07 2003-04-29 Corning Incorporated All fiber polarization mode dispersion compensator
JP3360074B2 (ja) * 2001-03-08 2002-12-24 科学技術振興事業団 可変光波機能回路及び可変光波機能装置
JP2002268028A (ja) * 2001-03-09 2002-09-18 Furukawa Electric Co Ltd:The 可変光学フィルタユニットおよび可変利得等化システム
US6753664B2 (en) 2001-03-22 2004-06-22 Creo Products Inc. Method for linearization of an actuator via force gradient modification
AU2003293218A1 (en) * 2002-12-02 2004-06-23 Scott E. Brient Methods and apparatuses for dispensing condiments
ITMI20040442A1 (it) * 2004-03-08 2004-06-08 Marconi Comm Spa Dispositivo e metodo per la conversione del formato di modulazione di un segnale ottico e ricevitore con essi
US10611669B2 (en) 2016-01-29 2020-04-07 Corning Incorporated Thermal energy control system for an optical fiber

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837521B2 (ja) * 1975-11-25 1983-08-17 日本電信電話株式会社 ヒカリカヘンゲンスイキ
US4145110A (en) * 1977-04-08 1979-03-20 Northern Telecom Limited Optical fibre connector for variable signal attenuation
JPS53144355A (en) * 1977-05-23 1978-12-15 Nippon Telegr & Teleph Corp <Ntt> Optical fiber modulator
DE2752688C3 (de) * 1977-11-25 1988-07-28 Siemens AG, 1000 Berlin und 8000 München Optischer Sender einer Vorrichtung zum Messen der Dämpfung optischer Wellen auf optischen Übertragungsstrecken
US4176908A (en) * 1977-12-14 1979-12-04 Bell Telephone Laboratories, Incorporated Devices for monitoring, switching, attenuating or distributing light
DE2908752A1 (de) * 1979-03-06 1980-09-18 Max Planck Gesellschaft Optisches transmissionsfilter
US4261640A (en) * 1979-04-03 1981-04-14 Harris Corporation In-line optic attenuators for optical fibers
JPS55152433A (en) * 1979-05-17 1980-11-27 Kokusai Denshin Denwa Co Ltd <Kdd> Light loss measuring instrument
US4281925A (en) * 1979-07-31 1981-08-04 Bowmar/Ali, Inc. Fiber optic attenuation simulator
JPS57172301A (en) * 1981-04-17 1982-10-23 Nippon Telegr & Teleph Corp <Ntt> Manufacture of fiber type polarizer

Also Published As

Publication number Publication date
US4529262A (en) 1985-07-16
IT8420840A0 (it) 1984-05-08
DE3417164A1 (de) 1984-12-06
DE3417164C2 (it) 1993-07-29
KR850000077A (ko) 1985-02-25
GB2140167A (en) 1984-11-21
FR2545946A1 (fr) 1984-11-16
JPH0676917U (ja) 1994-10-28
GB8411410D0 (en) 1984-06-06
IT1174082B (it) 1987-07-01
KR910005838B1 (ko) 1991-08-05
CA1214058A (en) 1986-11-18
JPS59211002A (ja) 1984-11-29
GB2140167B (en) 1986-10-01
FR2545946B1 (fr) 1990-09-28

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19960527