GB1416154A - Optical communications devices - Google Patents

Optical communications devices

Info

Publication number
GB1416154A
GB1416154A GB4613172A GB4613172A GB1416154A GB 1416154 A GB1416154 A GB 1416154A GB 4613172 A GB4613172 A GB 4613172A GB 4613172 A GB4613172 A GB 4613172A GB 1416154 A GB1416154 A GB 1416154A
Authority
GB
United Kingdom
Prior art keywords
length
cladding
taper
waveguide
field
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
GB4613172A
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.)
Post Office
Original Assignee
Post Office
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
Application filed by Post Office filed Critical Post Office
Priority to GB4613172A priority Critical patent/GB1416154A/en
Priority to NL7313445A priority patent/NL7313445A/xx
Priority to DE19732349983 priority patent/DE2349983A1/en
Priority to FR7335769A priority patent/FR2202364B1/fr
Priority to JP11222873A priority patent/JPS49134384A/ja
Priority to AU61315/73A priority patent/AU6131573A/en
Publication of GB1416154A publication Critical patent/GB1416154A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J40/00—Photoelectric discharge tubes not involving the ionisation of a gas
    • H01J40/02—Details
    • H01J40/04—Electrodes
    • H01J40/06—Photo-emissive cathodes
    • 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J43/00—Secondary-emission tubes; Electron-multiplier tubes
    • H01J43/04—Electron multipliers

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Electron Tubes For Measurement (AREA)
  • Photometry And Measurement Of Optical Pulse Characteristics (AREA)
  • Image-Pickup Tubes, Image-Amplification Tubes, And Storage Tubes (AREA)

Abstract

1416154 Electron beam systems; electron multipliers; photo-electric detectors POST OFFICE 24 Sept 1973 [6 Oct 1972] 46131/72 Heading H1D A device, for use in an opto-electric transducer, comprises a length of monomode dielectric optical waveguide having a core and a cladding, said length of waveguide being tapered along a section forming at least part of its length so that light propagating along the length will interact with a photocathode formed on a circumferential surface of the length of waveguide. Fig. 1 includes core 1, cladding 2, infra-red sensitive photoemitter 9 on taper 6 within anode 4 and B field 3 from coil 15 (Fig. 3, not shown) assisting coupling with channel multiplier 8. Light entering taper 6 increasingly propagates through the cladding and the structure increases the low quantum efficiency of the infra-red input (e.g. from a GaAs laser). The high E field due to the small diameter of the p/cathode assists electron ejection. The B field may be absent (Fig. 2, not shown), the electrons no longer orbitting spirally; anode 4 may be dispensed with (Fig. 4, not shown), taper 6 projecting into multiplier 8. Visible and U.V. inputs are also instanced and dimensions given.
GB4613172A 1972-10-06 1972-10-06 Optical communications devices Expired GB1416154A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
GB4613172A GB1416154A (en) 1972-10-06 1972-10-06 Optical communications devices
NL7313445A NL7313445A (en) 1972-10-06 1973-10-01
DE19732349983 DE2349983A1 (en) 1972-10-06 1973-10-04 ELECTRIC LIGHT CONVERTER FOR LIGHT DISPLAY IN LIGHT WAVE GUIDE
FR7335769A FR2202364B1 (en) 1972-10-06 1973-10-05
JP11222873A JPS49134384A (en) 1972-10-06 1973-10-05
AU61315/73A AU6131573A (en) 1972-10-06 1973-10-11 Optical transducers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4613172A GB1416154A (en) 1972-10-06 1972-10-06 Optical communications devices

Publications (1)

Publication Number Publication Date
GB1416154A true GB1416154A (en) 1975-12-03

Family

ID=10439974

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4613172A Expired GB1416154A (en) 1972-10-06 1972-10-06 Optical communications devices

Country Status (6)

Country Link
JP (1) JPS49134384A (en)
AU (1) AU6131573A (en)
DE (1) DE2349983A1 (en)
FR (1) FR2202364B1 (en)
GB (1) GB1416154A (en)
NL (1) NL7313445A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445751A (en) * 1981-10-19 1984-05-01 Westinghouse Electric Corp. Metal coated, tapered, optical fiber coupled to substrate and method of fabrication
WO2014065952A1 (en) * 2012-10-24 2014-05-01 Solarsort Technologies, Inc Optical fiber source and repeaters using tapered core waveguides
US9581762B2 (en) 2012-09-16 2017-02-28 Shalom Wertsberger Pixel structure using a tapered core waveguide, image sensors and camera using same
US9823415B2 (en) 2012-09-16 2017-11-21 CRTRIX Technologies Energy conversion cells using tapered waveguide spectral splitters
US9952388B2 (en) 2012-09-16 2018-04-24 Shalom Wertsberger Nano-scale continuous resonance trap refractor based splitter, combiner, and reflector
US10908431B2 (en) 2016-06-06 2021-02-02 Shalom Wertsberger Nano-scale conical traps based splitter, combiner, and reflector, and applications utilizing same

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4445751A (en) * 1981-10-19 1984-05-01 Westinghouse Electric Corp. Metal coated, tapered, optical fiber coupled to substrate and method of fabrication
US9581762B2 (en) 2012-09-16 2017-02-28 Shalom Wertsberger Pixel structure using a tapered core waveguide, image sensors and camera using same
US9823415B2 (en) 2012-09-16 2017-11-21 CRTRIX Technologies Energy conversion cells using tapered waveguide spectral splitters
US9952388B2 (en) 2012-09-16 2018-04-24 Shalom Wertsberger Nano-scale continuous resonance trap refractor based splitter, combiner, and reflector
US11158950B2 (en) 2012-09-16 2021-10-26 Shalom Wertsberger Continuous resonance trap refractor based antenna
WO2014065952A1 (en) * 2012-10-24 2014-05-01 Solarsort Technologies, Inc Optical fiber source and repeaters using tapered core waveguides
US10908431B2 (en) 2016-06-06 2021-02-02 Shalom Wertsberger Nano-scale conical traps based splitter, combiner, and reflector, and applications utilizing same

Also Published As

Publication number Publication date
AU6131573A (en) 1975-04-17
NL7313445A (en) 1974-04-09
DE2349983A1 (en) 1974-04-25
FR2202364B1 (en) 1977-05-27
FR2202364A1 (en) 1974-05-03
JPS49134384A (en) 1974-12-24

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Legal Events

Date Code Title Description
PS Patent sealed
435 Patent endorsed 'licences of right' on the date specified (sect. 35/1949)
PLNP Patent lapsed through nonpayment of renewal fees