CA1155678A - Optical attenuator providing controlled attenuation - Google Patents
Optical attenuator providing controlled attenuationInfo
- Publication number
- CA1155678A CA1155678A CA000364931A CA364931A CA1155678A CA 1155678 A CA1155678 A CA 1155678A CA 000364931 A CA000364931 A CA 000364931A CA 364931 A CA364931 A CA 364931A CA 1155678 A CA1155678 A CA 1155678A
- Authority
- CA
- Canada
- Prior art keywords
- attenuator
- attenuation
- auxiliary
- attenuator according
- intensity
- 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
Links
- 230000003287 optical effect Effects 0.000 title claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000012545 processing Methods 0.000 claims abstract description 6
- 230000002238 attenuated effect Effects 0.000 claims description 4
- 239000013307 optical fiber Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000011144 upstream manufacturing Methods 0.000 claims 4
- 239000000835 fiber Substances 0.000 description 5
- 230000005855 radiation Effects 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- ODPOAESBSUKMHD-UHFFFAOYSA-L 6,7-dihydrodipyrido[1,2-b:1',2'-e]pyrazine-5,8-diium;dibromide Chemical compound [Br-].[Br-].C1=CC=[N+]2CC[N+]3=CC=CC=C3C2=C1 ODPOAESBSUKMHD-UHFFFAOYSA-L 0.000 description 1
- 101150034533 ATIC gene Proteins 0.000 description 1
- XUKUURHRXDUEBC-KAYWLYCHSA-N Atorvastatin Chemical compound C=1C=CC=CC=1C1=C(C=2C=CC(F)=CC=2)N(CC[C@@H](O)C[C@@H](O)CC(O)=O)C(C(C)C)=C1C(=O)NC1=CC=CC=C1 XUKUURHRXDUEBC-KAYWLYCHSA-N 0.000 description 1
- 239000005630 Diquat Substances 0.000 description 1
- 101100521130 Mus musculus Prelid1 gene Proteins 0.000 description 1
- 101150007148 THI5 gene Proteins 0.000 description 1
- 230000002844 continuous effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- 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
- G02F1/0121—Operation of devices; Circuit arrangements, not otherwise provided for in this subclass
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
- Optical Communication System (AREA)
- Liquid Crystal (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7928693 | 1979-11-21 | ||
| FR7928693A FR2470397A1 (fr) | 1979-11-21 | 1979-11-21 | Attenuateur optique a attenuation controlee |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1155678A true CA1155678A (en) | 1983-10-25 |
Family
ID=9231943
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA000364931A Expired CA1155678A (en) | 1979-11-21 | 1980-11-18 | Optical attenuator providing controlled attenuation |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US4378490A (cg-RX-API-DMAC10.html) |
| EP (1) | EP0029777A1 (cg-RX-API-DMAC10.html) |
| JP (1) | JPS5687018A (cg-RX-API-DMAC10.html) |
| CA (1) | CA1155678A (cg-RX-API-DMAC10.html) |
| FR (1) | FR2470397A1 (cg-RX-API-DMAC10.html) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4443696A (en) * | 1981-08-28 | 1984-04-17 | John Taboada | Optical beam intensity control system |
| FR2527793A1 (fr) * | 1982-05-27 | 1983-12-02 | Souriau & Cie | Commutateur optique |
| FR2570836B1 (fr) * | 1984-09-21 | 1987-11-20 | Thomson Csf | Dispositif a ligne a retard optique circulante |
| US4690555A (en) * | 1985-11-01 | 1987-09-01 | Hughes Aircraft Company | Solid-state wavefront slope determination |
| DE3634508C1 (en) * | 1986-10-09 | 1988-06-16 | Rupert Fuerthbauer | Optical filter with automatic control of the optical transmission |
| US4927266A (en) * | 1987-03-30 | 1990-05-22 | Anritsu Corporation | Optical signal generating apparatus and optical power meter calibrating system using the same |
| US5070235A (en) * | 1990-06-18 | 1991-12-03 | General Signal Corporation | Accumulated exposure detection with exposure terminating attenuator |
| JP2953799B2 (ja) * | 1991-03-04 | 1999-09-27 | 日本電気株式会社 | 光受信回路 |
| US5319733A (en) * | 1992-01-02 | 1994-06-07 | Adc Telecommunications, Inc. | Variable fiber optical attenuator |
| AU671599B2 (en) * | 1992-01-02 | 1996-09-05 | Adc Telecommunications, Incorporated | Overlapping fusion attenuator |
| US5881199A (en) * | 1996-12-02 | 1999-03-09 | Lucent Technologies Inc. | Optical branching device integrated with tunable attenuators for system gain/loss equalization |
| JPH1196578A (ja) * | 1997-09-19 | 1999-04-09 | Nec Corp | 光情報検出装置 |
| DE19906769A1 (de) * | 1998-02-19 | 1999-12-16 | Leica Microsystems | Überlastschutz zur Vermeidung einer Beschädigung optischer Komponenten |
| US6442311B1 (en) | 1999-07-09 | 2002-08-27 | Agere Systems Guardian Corp. | Optical device having modified transmission characteristics by localized thermal treatment |
| US6388730B1 (en) | 1999-11-19 | 2002-05-14 | Corning Incorporated | Lateral field based liquid crystal electro-optic polarizer |
| US6600594B1 (en) | 2002-02-21 | 2003-07-29 | Lightech Fiberoptics, Inc. | Intelligent variable optical attenuator with controller and attenuation calibration |
| DE102014208792A1 (de) * | 2014-05-09 | 2015-11-12 | Carl Zeiss Smt Gmbh | System und Verfahren zur Analyse eines von einer Strahlführungsoptik geführten Lichtstrahls |
| JP6370766B2 (ja) * | 2015-11-13 | 2018-08-08 | ファナック株式会社 | レーザ用パワーセンサ |
| TWI711807B (zh) * | 2018-09-18 | 2020-12-01 | 廣達電腦股份有限公司 | 照度校正裝置、照度校正方法以及照度偵測方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1540783A (fr) * | 1967-10-13 | 1968-09-27 | Cary Instruments | Dispositif de commande automatique pour modulateur de lumière |
| GB1222551A (en) * | 1968-02-28 | 1971-02-17 | Philips Nv | Arrangement for controlling a supply voltage to an electro-optical polarisation switch |
| DE2403501C3 (de) * | 1974-01-25 | 1979-02-22 | Fa. Carl Zeiss, 7920 Heidenheim | Verfahren zur Regelung der Phasenanpassung einer kohärenten Sekundärstrahlung in einem nichtlinearen Kristall |
| US4071751A (en) * | 1976-04-26 | 1978-01-31 | Rca Limited | Automatic optical bias control for light modulators |
| JPS5845005B2 (ja) * | 1976-09-14 | 1983-10-06 | 日本ビクター株式会社 | 光変調の変調度安定化装置 |
| US4119842A (en) * | 1977-06-17 | 1978-10-10 | General Motors Corporation | Heater control system for liquid crystal device |
| JPS605926B2 (ja) * | 1978-11-22 | 1985-02-14 | 三菱電機株式会社 | 光変調装置 |
-
1979
- 1979-11-21 FR FR7928693A patent/FR2470397A1/fr active Granted
-
1980
- 1980-11-17 EP EP80401645A patent/EP0029777A1/fr not_active Withdrawn
- 1980-11-18 CA CA000364931A patent/CA1155678A/en not_active Expired
- 1980-11-18 US US06/208,001 patent/US4378490A/en not_active Expired - Lifetime
- 1980-11-21 JP JP16447780A patent/JPS5687018A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| FR2470397A1 (fr) | 1981-05-29 |
| US4378490A (en) | 1983-03-29 |
| EP0029777A1 (fr) | 1981-06-03 |
| FR2470397B1 (cg-RX-API-DMAC10.html) | 1983-09-16 |
| JPS5687018A (en) | 1981-07-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |