GB1527228A - Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide - Google Patents

Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide

Info

Publication number
GB1527228A
GB1527228A GB54764/74A GB5476474A GB1527228A GB 1527228 A GB1527228 A GB 1527228A GB 54764/74 A GB54764/74 A GB 54764/74A GB 5476474 A GB5476474 A GB 5476474A GB 1527228 A GB1527228 A GB 1527228A
Authority
GB
United Kingdom
Prior art keywords
waveguide
prism
radiation
launching
core
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
GB54764/74A
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.)
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 GB54764/74A priority Critical patent/GB1527228A/en
Priority to DE19752556320 priority patent/DE2556320A1/en
Priority to NL7514595A priority patent/NL7514595A/en
Priority to CA241,820A priority patent/CA1032795A/en
Priority to AU87635/75A priority patent/AU495398B2/en
Priority to FR7538622A priority patent/FR2295438A1/en
Priority to JP50151193A priority patent/JPS51105842A/ja
Priority to US05/848,362 priority patent/US4125768A/en
Publication of GB1527228A publication Critical patent/GB1527228A/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
    • H04B10/25—Arrangements specific to fibre transmission
    • H04B10/2581—Multimode transmission
    • 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
    • G02B6/2852—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 tapping light guides arranged sidewardly, e.g. in a non-parallel relationship with respect to the bus light guides (light extraction or launching through cladding, with or without surface discontinuities, bent structures)
    • 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
    • G02B6/34—Optical coupling means utilising prism or grating
    • 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
    • G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
    • 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
    • G02B6/4256—Details of housings
    • G02B6/4257—Details of housings having a supporting carrier or a mounting substrate or a mounting plate
    • G02B6/4259—Details of housings having a supporting carrier or a mounting substrate or a mounting plate of the transparent type
    • 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
    • G02B6/4286—Optical modules with optical power monitoring

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)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Optical Couplings Of Light Guides (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

1527228 Light guides POST OFFICE 10 Dec 1975 [18 Dec 1974] 54764/74 Heading G2J Apparatus for launching, Fig. 1 or detecting, Fig. 2 radiation in selected modes in a core/cladding waveguide comprises a tapered section 3, 20 of waveguide, long compared to the wavelength, and a prism 6, 21 of R.I. greater than that of the cladding positioned adjacent the waveguide either at, but not overlapping, the tapered section 3, 20 or at least partially overlapping it. To launch radiation, Fig. 1, light from laser 10 passes through prism 16 and enters the waveguide core in a weakly bound mode which is transformed to a selected, strongly bound mode by travelling in the outwardly tapering section 4 before reaching the main waveguide part 5. To detect radiation, Fig. 2, radiation in a selected mode in waveguide 5 is transformed to a weakly bound mode by travelling in the inwardly tapering section 20 and is then extracted by prism 21 so as to impinge on defector 23. An index matching liquid 8 may be present between the prism and the waveguide. The waveguide may be of sodium borosilicate glass having an external diameter tapering from 70-100Ám down to 12-15Ám and a core diameter which tapers from 12Ám to 3Ám.
GB54764/74A 1974-12-18 1974-12-18 Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide Expired GB1527228A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB54764/74A GB1527228A (en) 1974-12-18 1974-12-18 Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide
DE19752556320 DE2556320A1 (en) 1974-12-18 1975-12-13 ARRANGEMENT FOR FEEDING IN OR DETECTING RADIATION IN AN OPTICAL DIELECTRIC WAVE GUIDE AND METHOD OF OPERATING THE ARRANGEMENT
NL7514595A NL7514595A (en) 1974-12-18 1975-12-15 DEVICE FOR SENDING OR DETECTING GOL- VAN WITH A PARTICULAR MODE IN AN OPTICAL, DIELECTRIC WAVE GUIDE.
CA241,820A CA1032795A (en) 1974-12-18 1975-12-16 Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide
AU87635/75A AU495398B2 (en) 1975-12-17 Apparatus for launching or detecting waves of selected modes inan optical dielectric waveguide
FR7538622A FR2295438A1 (en) 1974-12-18 1975-12-17 DEVICE TO START OR DETECT WAVES WITH SELECTED MODES IN A DIELECTRIC OPTICAL WAVE GUIDE
JP50151193A JPS51105842A (en) 1974-12-18 1975-12-18
US05/848,362 US4125768A (en) 1974-12-18 1977-11-03 Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB54764/74A GB1527228A (en) 1974-12-18 1974-12-18 Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide

Publications (1)

Publication Number Publication Date
GB1527228A true GB1527228A (en) 1978-10-04

Family

ID=10472011

Family Applications (1)

Application Number Title Priority Date Filing Date
GB54764/74A Expired GB1527228A (en) 1974-12-18 1974-12-18 Apparatus for launching or detecting waves of selected modes in an optical dielectric waveguide

Country Status (6)

Country Link
JP (1) JPS51105842A (en)
CA (1) CA1032795A (en)
DE (1) DE2556320A1 (en)
FR (1) FR2295438A1 (en)
GB (1) GB1527228A (en)
NL (1) NL7514595A (en)

Cited By (154)

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WO2002052321A2 (en) * 2000-12-22 2002-07-04 Schleifring Und Apparatebau Gmbh Device for the transmission of optical signals by means of planar light guides
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Publication number Publication date
FR2295438A1 (en) 1976-07-16
DE2556320A1 (en) 1976-07-01
FR2295438B1 (en) 1979-01-19
CA1032795A (en) 1978-06-13
NL7514595A (en) 1976-06-22
AU8763575A (en) 1977-06-23
JPS51105842A (en) 1976-09-20

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Effective date: 19951209