GB1479298A - Optical communication system - Google Patents

Optical communication system

Info

Publication number
GB1479298A
GB1479298A GB29653/74A GB2965374A GB1479298A GB 1479298 A GB1479298 A GB 1479298A GB 29653/74 A GB29653/74 A GB 29653/74A GB 2965374 A GB2965374 A GB 2965374A GB 1479298 A GB1479298 A GB 1479298A
Authority
GB
United Kingdom
Prior art keywords
line
transmission lines
rod
communication system
optical communication
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
Application number
GB29653/74A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Corning Glass Works
Original Assignee
Corning Glass Works
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
Priority claimed from US376575A external-priority patent/US3883217A/en
Priority claimed from US376581A external-priority patent/US3874781A/en
Application filed by Corning Glass Works filed Critical Corning Glass Works
Publication of GB1479298A publication Critical patent/GB1479298A/en
Expired legal-status Critical Current

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)

Abstract

1479298 Optical communication system CORNING GLASS WORKS 4 July 1974 [5 July 1973 (2)] 29653/74 Heading G1A [Also in Division G2] An optical communication system comprises a plurality of transmission lines each connected at one end to a corresponding one of an equal number of stations and at the other end to a common passive coupler, which receives from any said transmission line, signals, of which it transfers a portion to the rest of the transmission lines. Each station has a source and a detector connected via bundles of optical light fibres and a mixer rod to its transmission line. The passive coupler of Fig. 4 comprises a cylindrical transparent mixer rod 61 clad with layer 62 of lower refractive index and reflective coating 65 and with its end-faces, 63, 64, polished and perpendicular to its axis. Support means 67 positions a bundle 66 of transmission lines parallel to this axis with their ends separated from face 64 only by fluid 68 which equals the refractive indices of 61 and 66 or matches them if they are unequal. The numerical aperture of rod 61 at least equals that of a line of 66. So that light from any line of 66, of acceptance half angle # c when connected, is reflected to any other line 66, the length L m of rod 61 of diameter d is given by The passive coupler of Fig. 5 in housing 65 has mixer rods 72-77 inter-connected by optical waveguides 88 and receiving transmission lines 81-86.
GB29653/74A 1973-07-05 1974-07-04 Optical communication system Expired GB1479298A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US376575A US3883217A (en) 1973-07-05 1973-07-05 Optical communication system
US376581A US3874781A (en) 1973-07-05 1973-07-05 Coupler for optical communication system

Publications (1)

Publication Number Publication Date
GB1479298A true GB1479298A (en) 1977-07-13

Family

ID=27007474

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29653/74A Expired GB1479298A (en) 1973-07-05 1974-07-04 Optical communication system

Country Status (7)

Country Link
JP (1) JPS5816374B2 (en)
CA (1) CA997181A (en)
DE (1) DE2428570A1 (en)
FR (1) FR2236319B1 (en)
GB (1) GB1479298A (en)
IT (1) IT1015697B (en)
NL (1) NL183693C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111123445A (en) * 2018-10-31 2020-05-08 台湾积体电路制造股份有限公司 Polarization independent optoelectronic device

Families Citing this family (18)

* Cited by examiner, † Cited by third party
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
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
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
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111123445A (en) * 2018-10-31 2020-05-08 台湾积体电路制造股份有限公司 Polarization independent optoelectronic device
CN111123445B (en) * 2018-10-31 2022-05-03 台湾积体电路制造股份有限公司 Polarization independent optoelectronic device
US11703379B2 (en) 2018-10-31 2023-07-18 Taiwan Semiconductor Manufacturing Company Limited Polarization independent optoelectronic device and method

Also Published As

Publication number Publication date
FR2236319A1 (en) 1975-01-31
IT1015697B (en) 1977-05-20
NL183693B (en) 1988-07-18
DE2428570C2 (en) 1987-02-26
JPS5816374B2 (en) 1983-03-31
FR2236319B1 (en) 1979-05-25
NL7409066A (en) 1975-01-07
NL183693C (en) 1988-12-16
JPS5039403A (en) 1975-04-11
DE2428570A1 (en) 1975-01-23
CA997181A (en) 1976-09-21

Similar Documents

Publication Publication Date Title
GB1479298A (en) Optical communication system
US3883222A (en) Coupler for optical communication system
US3874781A (en) Coupler for optical communication system
US3870396A (en) Optical coupler
US3874780A (en) Coupler for optical communication system
US4360248A (en) Multiport optical communication system and optical star structure therefor
US3883217A (en) Optical communication system
US4027153A (en) Fibre network having a passive optical coupling element for optoelectronic transmission of data between addressable subscriber stations
US3937557A (en) Star coupler for single mode fiber communication systems
US3870398A (en) Passive coupler for optical communication system
US4252403A (en) Coupler for a graded index fiber
US3901581A (en) Tapered coupler for optical communication system
FR2358669A1 (en) OPTICAL FIBER SET ASSOCIATED WITH ONE OR MORE INPUT COUPLERS AND ITS PRODUCTION PROCESS
US4200356A (en) Coupler for optical communication system
US4479697A (en) Fiber optics communications modules
US4436368A (en) Multiple core optical waveguide for secure transmission
US4076376A (en) Optical transmission systems
US4092059A (en) Coupler for optical communication system
US4113345A (en) Branching arrangement for communication transmission links having optical glass fibers
GB1245891A (en) Improvements in or relating to optical transmission media
KR870000605A (en) Fiber optic coupler
US4213670A (en) Planar fiber optic star and access coupler
US4600267A (en) Optical distributor
US4165914A (en) Access coupler and duplex coupler for single multimode fiber transmission line
GB1528242A (en) Coupler for optical communication system

Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19930704