GB8610879D0 - Improvements in or relating to optical filters - Google Patents

Improvements in or relating to optical filters

Info

Publication number
GB8610879D0
GB8610879D0 GB868610879A GB8610879A GB8610879D0 GB 8610879 D0 GB8610879 D0 GB 8610879D0 GB 868610879 A GB868610879 A GB 868610879A GB 8610879 A GB8610879 A GB 8610879A GB 8610879 D0 GB8610879 D0 GB 8610879D0
Authority
GB
United Kingdom
Prior art keywords
relating
optical filters
filters
optical
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.)
Granted
Application number
GB868610879A
Other versions
GB2216678A (en
GB2216678B (en
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.)
Qioptiq Ltd
Original Assignee
Pilkington PE Ltd
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 Pilkington PE Ltd filed Critical Pilkington PE Ltd
Publication of GB8610879D0 publication Critical patent/GB8610879D0/en
Publication of GB2216678A publication Critical patent/GB2216678A/en
Application granted granted Critical
Publication of GB2216678B publication Critical patent/GB2216678B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4201Packages, e.g. shape, construction, internal or external details
    • G02B6/4246Bidirectionally operating package structures
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00Optical devices or arrangements for the control of light using movable or deformable optical elements
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00Optical elements other than lenses
    • G02B5/20Filters
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317Light guides of the optical fibre type
    • G02B6/29322Diffractive elements of the tunable type
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/29395Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device configurable, e.g. tunable or reconfigurable
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24Coupling light guides
    • G02B6/26Optical coupling means
    • G02B6/28Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29346Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by wave or beam interference
    • G02B6/29361Interference filters, e.g. multilayer coatings, thin film filters, dichroic splitters or mirrors based on multilayers, WDM filters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Diffracting Gratings Or Hologram Optical Elements (AREA)
GB8610879A 1985-05-16 1986-05-02 Improvements in or relating to optical apparatus with tuneable filter. Expired - Lifetime GB2216678B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8512411 1985-05-16

Publications (3)

Publication Number Publication Date
GB8610879D0 true GB8610879D0 (en) 1989-07-05
GB2216678A GB2216678A (en) 1989-10-11
GB2216678B GB2216678B (en) 1990-02-21

Family

ID=10579238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8610879A Expired - Lifetime GB2216678B (en) 1985-05-16 1986-05-02 Improvements in or relating to optical apparatus with tuneable filter.

Country Status (1)

Country Link
GB (1) GB2216678B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8824784D0 (en) * 1988-10-21 1988-11-30 Pilkington Plc Method & apparatus for use of holographic optical elements
GB9419757D0 (en) * 1994-09-30 1994-11-16 Lynxvale Ltd Wavelength selective filter and laser including it

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB716332A (en) * 1951-07-21 1954-10-06 Technicolor Motion Picture Optical beam splitting or combining systems
GB714955A (en) * 1952-03-31 1954-09-08 Technicolor Motion Picture Improvements in or relating to light dividing systems
GB768036A (en) * 1954-09-17 1957-02-13 Technicolor Motion Picture Improvements in or relating to optical beam splitting or combining systems
IT1109751B (en) * 1978-01-31 1985-12-23 Nippon Telegraph & Telephone OPTICAL MULTIPLIER AND DEMULTIPLATOR
DE3346365A1 (en) * 1983-12-22 1985-08-29 Standard Elektrik Lorenz Ag, 7000 Stuttgart OPTICAL MULTIPLEXER / DEMULTIPLEXER

Also Published As

Publication number Publication date
GB2216678A (en) 1989-10-11
GB2216678B (en) 1990-02-21

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Legal Events

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

Effective date: 19970502