GB1413425A - Optical communication systems - Google Patents

Optical communication systems

Info

Publication number
GB1413425A
GB1413425A GB1543073A GB1543073A GB1413425A GB 1413425 A GB1413425 A GB 1413425A GB 1543073 A GB1543073 A GB 1543073A GB 1543073 A GB1543073 A GB 1543073A GB 1413425 A GB1413425 A GB 1413425A
Authority
GB
United Kingdom
Prior art keywords
core
refractive index
light
transmitting means
layer
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
GB1543073A
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 US00239744A external-priority patent/US3832028A/en
Application filed by Corning Glass Works filed Critical Corning Glass Works
Publication of GB1413425A publication Critical patent/GB1413425A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4202—Packages, e.g. shape, construction, internal or external details for coupling an active element with fibres without intermediate optical elements, e.g. fibres with plane ends, fibres with shaped ends, bundles
    • G02B6/4203—Optical features
    • 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
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • G02B6/4206—Optical features
    • 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
    • H04B10/50—Transmitters
    • H04B10/501—Structural aspects
    • H04B10/502—LED transmitters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Optical Couplings Of Light Guides (AREA)

Abstract

1413425 Optical communication systems CORNING GLASS WORKS 30 March 1973 [30 March 1972 (2)] 15430/73 Heading G1A [Also in Division G2] In an optical communication system having a light transmitting means 46 including at least one optical waveguide, a tapered light coupler 26 is provided with its larger end adjacent to an end of the light transmitting means and with its smaller end adjacent an electro-optical conversion means 42, the coupler comprising a core 30 of transparent material and a layer 32 of transparent material disposed upon the surface of the core, the refractive index of the layer being smaller than that of the core. As shown, the conversion means 42 is a non- coherent light-emitting diode and the transmitting means is a bundle of optical fibres, the core and layer being formed of different types of glass. The core may have a constant refractive index or a gradually charging refractive index, the higher refractive index portion being adjacent the LED 42 and the refractive index adjacent the transmitting means being matched to the material of the fibres. Alternatively, the core may be formed of discrete sections of material having different refractive indices, Fig. 5 (not shown). In both cases, the outer layer may be covered with a light reflecting surface, Figs. 7 and 10 (not shown). As a further alternative, a light reflecting surface surrounds the core over a predetermined length adjacent the LED, the remainder of the core being surrounded by the layer of transparent material, Fig. 9 (not shown). A similar coupler may be provided at the other end of the transmitting means for coupling light to a detector, Fig. 6 (not shown).
GB1543073A 1972-03-30 1973-03-30 Optical communication systems Expired GB1413425A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US23951772A 1972-03-30 1972-03-30
US00239744A US3832028A (en) 1972-03-30 1972-03-30 Coupler for optical waveguide light source

Publications (1)

Publication Number Publication Date
GB1413425A true GB1413425A (en) 1975-11-12

Family

ID=26932637

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1543073A Expired GB1413425A (en) 1972-03-30 1973-03-30 Optical communication systems

Country Status (4)

Country Link
JP (1) JPS4910058A (en)
FR (1) FR2178173B1 (en)
GB (1) GB1413425A (en)
NL (1) NL7304371A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3630351A1 (en) * 1985-09-09 1987-03-12 Ord Inc OPTICAL DEVICE
DE3734827A1 (en) * 1986-12-23 1988-07-07 Ima Spa DEVICE FOR DETECTING THE PRESENCE OF PRODUCTS IN APPROPRIATE CAVES AND OF IRREGULARITIES IN THE BASIC PROFILE OF THESE PRODUCTS ALREADY ARRANGED IN THE CAVES
GB2350440A (en) * 1999-04-23 2000-11-29 Yazaki Corp Optic fibre connector with tapered light guide
DE10015867C2 (en) * 1999-11-08 2002-11-14 Yazaki Corp Socket and coupling for an optical connector

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52104136A (en) * 1976-02-26 1977-09-01 Sumitomo Electric Ind Ltd Coupling device to joint electric-photo converter to optical fiber
JPS5830561B2 (en) * 1976-06-07 1983-06-30 オリンパス光学工業株式会社 wide aperture fiber
US4229067A (en) * 1978-11-17 1980-10-21 Corning Glass Works Optical waveguide mode scrambler
JPS57100409A (en) * 1980-12-15 1982-06-22 Toshiba Corp Optical coupler
FR2504691A1 (en) * 1981-04-27 1982-10-29 Boscher Daniel Optical fibre coupler used between light transmitter and receiver - where fibre is subjected to ion exchange so its numerical aperture varies along fibre and coupling losses are reduced
FR2519433B1 (en) * 1981-12-31 1985-09-20 Thomson Csf DEVICE FOR COUPLING BETWEEN A LIGHT SOURCE WITH DIVERGING RADIATION AND AN OPTICAL FIBER
EP0635741B1 (en) * 1993-07-19 2002-11-13 Motorola, Inc. Optoelectronic interface and method of making
US7246923B2 (en) * 2004-02-11 2007-07-24 3M Innovative Properties Company Reshaping light source modules and illumination systems using the same
JP2010072485A (en) * 2008-09-19 2010-04-02 Fujikura Ltd Optical fiber bundle and optical irradiation device

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2589569A (en) * 1948-08-04 1952-03-18 Westinghouse Brake & Signal Optical system for use in light signals, indicators, and the like
FR1543165A (en) * 1964-05-06 1968-10-25 Optical concentrator device of a new type making it possible to obtain maximum irradiance on the sensitive element of a radiation receiver, method for determining the optimum characteristics of concentrators of this type, and implementing devices
US3450890A (en) * 1966-07-11 1969-06-17 Us Navy Wide-entrance,narrow-exit thin sheet light guide with juxtaposed photosensor
GB1225115A (en) * 1967-07-24 1971-03-17
DE1673905A1 (en) * 1968-02-15 1971-09-30 Eltro Gmbh Optical aiming or observation device combined with a laser range finder

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3630351A1 (en) * 1985-09-09 1987-03-12 Ord Inc OPTICAL DEVICE
GB2180367A (en) * 1985-09-09 1987-03-25 Ord Inc Tapered optical fibre for immunoassay
DE3630351B4 (en) * 1985-09-09 2005-04-28 Roche Diagnostics Corp Optical examination device
DE3734827A1 (en) * 1986-12-23 1988-07-07 Ima Spa DEVICE FOR DETECTING THE PRESENCE OF PRODUCTS IN APPROPRIATE CAVES AND OF IRREGULARITIES IN THE BASIC PROFILE OF THESE PRODUCTS ALREADY ARRANGED IN THE CAVES
GB2350440A (en) * 1999-04-23 2000-11-29 Yazaki Corp Optic fibre connector with tapered light guide
US6459835B1 (en) 1999-04-23 2002-10-01 Yazaki Corporation Optical connector
GB2350440B (en) * 1999-04-23 2003-02-26 Yazaki Corp Optical fibre connector with tapered light guide
DE10015867C2 (en) * 1999-11-08 2002-11-14 Yazaki Corp Socket and coupling for an optical connector

Also Published As

Publication number Publication date
JPS4910058A (en) 1974-01-29
NL7304371A (en) 1973-10-02
FR2178173A1 (en) 1973-11-09
FR2178173B1 (en) 1976-09-10

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee