FR2236319B1 - - Google Patents
Info
- Publication number
- FR2236319B1 FR2236319B1 FR7423451A FR7423451A FR2236319B1 FR 2236319 B1 FR2236319 B1 FR 2236319B1 FR 7423451 A FR7423451 A FR 7423451A FR 7423451 A FR7423451 A FR 7423451A FR 2236319 B1 FR2236319 B1 FR 2236319B1
- Authority
- FR
- France
- 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
Classifications
-
- 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
- H04B10/27—Arrangements for networking
-
- 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
- G02B6/2808—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 a mixing element which evenly distributes an input signal over a number of outputs
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Computing Systems (AREA)
- Electromagnetism (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Optical Couplings Of Light Guides (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US376581A US3874781A (en) | 1973-07-05 | 1973-07-05 | Coupler for optical communication system |
US376575A US3883217A (en) | 1973-07-05 | 1973-07-05 | Optical communication system |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2236319A1 FR2236319A1 (en) | 1975-01-31 |
FR2236319B1 true FR2236319B1 (en) | 1979-05-25 |
Family
ID=27007474
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7423451A Expired FR2236319B1 (en) | 1973-07-05 | 1974-07-05 |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPS5816374B2 (en) |
CA (1) | CA997181A (en) |
DE (1) | DE2428570C2 (en) |
FR (1) | FR2236319B1 (en) |
GB (1) | GB1479298A (en) |
IT (1) | IT1015697B (en) |
NL (1) | NL183693C (en) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5528090B2 (en) * | 1974-06-06 | 1980-07-25 | ||
FR2298237A1 (en) * | 1975-01-14 | 1976-08-13 | Thomson Csf | Optical coupling block used with light guides - is used for transmission or reception of optical signals to or from any station and has internally reflecting walls |
JPS5259502A (en) * | 1975-11-11 | 1977-05-17 | Nec Corp | Data transmission system using light fiber cable data highway |
DE2703034C2 (en) * | 1977-01-26 | 1984-08-02 | ANT Nachrichtentechnik GmbH, 7150 Backnang | Coupling arrangement for multi-wave fiber optic communication systems |
DE2812346A1 (en) * | 1977-03-23 | 1978-09-28 | Tokyo Shibaura Electric Co | LIGHT DISTRIBUTOR |
US4234970A (en) * | 1977-11-03 | 1980-11-18 | Elliott Brothers (London) Limited | Fiber optic communication system |
JPS5545238A (en) * | 1978-09-25 | 1980-03-29 | Matsushita Electric Ind Co Ltd | Optical fiber transmission system |
JPS5938777B2 (en) * | 1979-04-27 | 1984-09-19 | 日本電信電話株式会社 | Communication network using optical wavelength division multiplexing transmission |
DE3123446A1 (en) * | 1981-06-12 | 1983-01-05 | Siemens AG, 1000 Berlin und 8000 München | Arrangement for controlling the bus access of a multiplicity of devices using a bus in a network designed with at least two optical mixers as a passive bus system, in particular for multicomputer systems |
DE3123445A1 (en) * | 1981-06-12 | 1982-12-30 | Siemens AG, 1000 Berlin und 8000 München | NETWORK WITH A VARIETY OF OPTICAL SIGNAL TRANSMISSION LINES CONNECTABLE TO OTHER OPTICAL MIXERS |
US4511208A (en) * | 1981-11-26 | 1985-04-16 | Tokyo Shibaura Denki Kabushiki Kaisha | Optical communication system |
US4810052A (en) * | 1986-01-07 | 1989-03-07 | Litton Systems, Inc | Fiber optic bidirectional data bus tap |
JPS6427330A (en) * | 1987-07-23 | 1989-01-30 | Kokusai Denshin Denwa Co Ltd | Optical fiber branching system |
JPH0777367B2 (en) * | 1987-08-14 | 1995-08-16 | 富士通株式会社 | Two-way optical communication network |
JP2685894B2 (en) * | 1989-05-09 | 1997-12-03 | 古河電気工業株式会社 | Optical wiring method |
JP2697208B2 (en) * | 1989-12-08 | 1998-01-14 | 日立電線株式会社 | Two-way transmission between multiple points |
JP2653410B2 (en) * | 1990-12-28 | 1997-09-17 | 富士ゼロックス株式会社 | Star coupler and optical communication network |
JP2658667B2 (en) * | 1991-08-31 | 1997-09-30 | 日本電気株式会社 | Branch switching device for optical fiber cable |
US10921182B2 (en) * | 2018-10-31 | 2021-02-16 | Taiwan Semiconductor Manufacturing Company Limited | Polarization independent optoelectronic device and method |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3455667A (en) * | 1966-05-06 | 1969-07-15 | American Optical Corp | Method of making optical couplers |
US3455625A (en) * | 1966-06-23 | 1969-07-15 | Bausch & Lomb | Optical fiber bundle coupling system |
DE1254513B (en) * | 1966-12-21 | 1967-11-16 | Telefunken Patent | Multi-stage transmission system for messages represented in pulse code modulation |
US3541341A (en) * | 1968-02-21 | 1970-11-17 | Gen Electric | Redundant fiber-optic light guide construction |
DE1927006B2 (en) * | 1968-07-06 | 1971-05-27 | OPTICAL MULTIPLEX TRANSMISSION SYSTEM | |
DE1801999B2 (en) * | 1968-10-09 | 1973-11-08 | Telefunken Patentverwertungsgesellschaft Mbh, 7900 Ulm | Broadband transmission channels showing a message transmission system with a large number of participants |
DE2144780A1 (en) * | 1971-09-08 | 1973-03-15 | Licentia Gmbh | MESSAGE TRANSMISSION SYSTEM WITH A CABLE WITH PARALLEL FIBERGLASS LIGHT LINES |
DE2205996B2 (en) * | 1972-02-09 | 1975-05-15 | Rank Precision Industries Gmbh, 8500 Nuernberg | Fiber optic light guide arrangement, in particular a reflection barrier |
-
1974
- 1974-04-23 CA CA197,972A patent/CA997181A/en not_active Expired
- 1974-06-14 DE DE2428570A patent/DE2428570C2/en not_active Expired
- 1974-07-03 JP JP49076221A patent/JPS5816374B2/en not_active Expired
- 1974-07-04 GB GB29653/74A patent/GB1479298A/en not_active Expired
- 1974-07-04 NL NLAANVRAGE7409066,A patent/NL183693C/en not_active IP Right Cessation
- 1974-07-05 IT IT24841/74A patent/IT1015697B/en active
- 1974-07-05 FR FR7423451A patent/FR2236319B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
NL183693B (en) | 1988-07-18 |
NL183693C (en) | 1988-12-16 |
JPS5816374B2 (en) | 1983-03-31 |
DE2428570C2 (en) | 1987-02-26 |
NL7409066A (en) | 1975-01-07 |
DE2428570A1 (en) | 1975-01-23 |
JPS5039403A (en) | 1975-04-11 |
CA997181A (en) | 1976-09-21 |
FR2236319A1 (en) | 1975-01-31 |
IT1015697B (en) | 1977-05-20 |
GB1479298A (en) | 1977-07-13 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |