IT1174082B - Attenuatore a fibre ottiche del tipo in-linea - Google Patents
Attenuatore a fibre ottiche del tipo in-lineaInfo
- Publication number
- IT1174082B IT1174082B IT20840/84A IT2084084A IT1174082B IT 1174082 B IT1174082 B IT 1174082B IT 20840/84 A IT20840/84 A IT 20840/84A IT 2084084 A IT2084084 A IT 2084084A IT 1174082 B IT1174082 B IT 1174082B
- Authority
- IT
- Italy
- Prior art keywords
- fiber optic
- line type
- type fiber
- optic attenuator
- attenuator
- Prior art date
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 Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
- Optical Couplings Of Light Guides (AREA)
- Mechanical Light Control Or Optical Switches (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
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 IT8420840A1 (it) | 1985-11-08 |
IT1174082B true 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)
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 |
US4887900A (en) * | 1987-02-20 | 1989-12-19 | Litton Systems, Inc. | Polarization maintaining fiber interferometer and method for source stabilization |
US4842358A (en) * | 1987-02-20 | 1989-06-27 | Litton Systems, Inc. | Apparatus and method for optical signal 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 |
US5319733A (en) * | 1992-01-02 | 1994-06-07 | Adc Telecommunications, Inc. | Variable fiber optical attenuator |
EP0694173A1 (en) * | 1992-01-02 | 1996-01-31 | Adc Telecommunications, Inc. | Overlapping fusion 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)
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 |
-
1983
- 1983-05-09 US US06/492,817 patent/US4529262A/en not_active Expired - Lifetime
-
1984
- 1984-04-18 CA CA000452257A patent/CA1214058A/en not_active Expired
- 1984-05-02 FR FR848406796A patent/FR2545946B1/fr not_active Expired - Fee Related
- 1984-05-03 GB GB08411410A patent/GB2140167B/en not_active Expired
- 1984-05-07 KR KR1019840002479A patent/KR910005838B1/ko not_active IP Right Cessation
- 1984-05-08 IT IT20840/84A patent/IT1174082B/it active
- 1984-05-09 JP JP59091152A patent/JPS59211002A/ja active Pending
- 1984-05-09 DE DE19843417164 patent/DE3417164A1/de active Granted
-
1993
- 1993-06-07 JP JP030315U patent/JPH0676917U/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
FR2545946A1 (fr) | 1984-11-16 |
IT8420840A0 (it) | 1984-05-08 |
GB2140167A (en) | 1984-11-21 |
DE3417164A1 (de) | 1984-12-06 |
FR2545946B1 (fr) | 1990-09-28 |
CA1214058A (en) | 1986-11-18 |
JPS59211002A (ja) | 1984-11-29 |
DE3417164C2 (it) | 1993-07-29 |
KR850000077A (ko) | 1985-02-25 |
JPH0676917U (ja) | 1994-10-28 |
GB8411410D0 (en) | 1984-06-06 |
IT8420840A1 (it) | 1985-11-08 |
KR910005838B1 (ko) | 1991-08-05 |
GB2140167B (en) | 1986-10-01 |
US4529262A (en) | 1985-07-16 |
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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 |