JPS5468651A - Light fixing attenuator - Google Patents
Light fixing attenuatorInfo
- Publication number
- JPS5468651A JPS5468651A JP13609277A JP13609277A JPS5468651A JP S5468651 A JPS5468651 A JP S5468651A JP 13609277 A JP13609277 A JP 13609277A JP 13609277 A JP13609277 A JP 13609277A JP S5468651 A JPS5468651 A JP S5468651A
- Authority
- JP
- Japan
- Prior art keywords
- film
- metal film
- constitution
- face
- optical fiber
- 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.)
- Pending
Links
Abstract
PURPOSE: To simplify constitution and achieve miniaturization by forming a light attenuating metal film between the end faces of optical fibers and superposing another metal film for spacer in the non-waveguide region.
CONSTITUTION: A metal film 2 such as of chromium or other is formed through vacuum evaporation or the like on the end face of an optical fiber 1 to provide an attenuating layer. If a metal film 3 for spacer thicker than the film 2 is superposed on the non-waveguide region other than core layer 11a and clad layer 12a on this film 2 through vacuum evaporation and etching or the like and the end face of an optical fiber 4 is bonded via the film 3, then the dispositions of the fibers 1, 4 are automatically determined and the small and easy-to-manufacture light attenuator of the simple constitution may be provided.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13609277A JPS5468651A (en) | 1977-11-11 | 1977-11-11 | Light fixing attenuator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13609277A JPS5468651A (en) | 1977-11-11 | 1977-11-11 | Light fixing attenuator |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5468651A true JPS5468651A (en) | 1979-06-01 |
Family
ID=15167062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13609277A Pending JPS5468651A (en) | 1977-11-11 | 1977-11-11 | Light fixing attenuator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5468651A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4753511A (en) * | 1985-10-07 | 1988-06-28 | Eastman Kodak Company | Optical connector and adaptor kit for selective attenuation of signals in optical fiber circuits |
US6490391B1 (en) | 2000-07-12 | 2002-12-03 | Oluma, Inc. | Devices based on fibers engaged to substrates with grooves |
US6501875B2 (en) | 2000-06-27 | 2002-12-31 | Oluma, Inc. | Mach-Zehnder inteferometers and applications based on evanescent coupling through side-polished fiber coupling ports |
US6516114B2 (en) | 2000-06-27 | 2003-02-04 | Oluma, Inc. | Integration of fibers on substrates fabricated with grooves |
US6542663B1 (en) | 2000-09-07 | 2003-04-01 | Oluma, Inc. | Coupling control in side-polished fiber devices |
US6571035B1 (en) | 2000-08-10 | 2003-05-27 | Oluma, Inc. | Fiber optical switches based on optical evanescent coupling between two fibers |
US6597833B1 (en) | 2000-06-27 | 2003-07-22 | Oluma, Inc. | Wavelength-division multiplexers and demultiplexers based on mach-zehnder interferometers and evanescent coupling |
US6621952B1 (en) | 2000-08-10 | 2003-09-16 | Oluma, Inc. | In-fiber variable optical attenuators and modulators using index-changing liquid media |
US6621951B1 (en) | 2000-06-27 | 2003-09-16 | Oluma, Inc. | Thin film structures in devices with a fiber on a substrate |
US6625349B2 (en) | 2000-06-27 | 2003-09-23 | Oluma, Inc. | Evanescent optical coupling between a waveguide formed on a substrate and a side-polished fiber |
-
1977
- 1977-11-11 JP JP13609277A patent/JPS5468651A/en active Pending
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4753511A (en) * | 1985-10-07 | 1988-06-28 | Eastman Kodak Company | Optical connector and adaptor kit for selective attenuation of signals in optical fiber circuits |
US6501875B2 (en) | 2000-06-27 | 2002-12-31 | Oluma, Inc. | Mach-Zehnder inteferometers and applications based on evanescent coupling through side-polished fiber coupling ports |
US6516114B2 (en) | 2000-06-27 | 2003-02-04 | Oluma, Inc. | Integration of fibers on substrates fabricated with grooves |
US6556746B1 (en) | 2000-06-27 | 2003-04-29 | Oluma, Inc. | Integrated fiber devices based on Mach-Zehnder interferometers and evanescent optical coupling |
US6597833B1 (en) | 2000-06-27 | 2003-07-22 | Oluma, Inc. | Wavelength-division multiplexers and demultiplexers based on mach-zehnder interferometers and evanescent coupling |
US6621951B1 (en) | 2000-06-27 | 2003-09-16 | Oluma, Inc. | Thin film structures in devices with a fiber on a substrate |
US6625349B2 (en) | 2000-06-27 | 2003-09-23 | Oluma, Inc. | Evanescent optical coupling between a waveguide formed on a substrate and a side-polished fiber |
US6490391B1 (en) | 2000-07-12 | 2002-12-03 | Oluma, Inc. | Devices based on fibers engaged to substrates with grooves |
US6690857B2 (en) | 2000-07-12 | 2004-02-10 | Oluma, Inc. | Fiber devices having side evanescent coupling port |
US6571035B1 (en) | 2000-08-10 | 2003-05-27 | Oluma, Inc. | Fiber optical switches based on optical evanescent coupling between two fibers |
US6621952B1 (en) | 2000-08-10 | 2003-09-16 | Oluma, Inc. | In-fiber variable optical attenuators and modulators using index-changing liquid media |
US6542663B1 (en) | 2000-09-07 | 2003-04-01 | Oluma, Inc. | Coupling control in side-polished fiber devices |
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