GB2216678B - Improvements in or relating to optical apparatus with tuneable filter. - Google Patents
Improvements in or relating to optical apparatus with tuneable filter.Info
- Publication number
- GB2216678B GB2216678B GB8610879A GB8610879A GB2216678B GB 2216678 B GB2216678 B GB 2216678B GB 8610879 A GB8610879 A GB 8610879A GB 8610879 A GB8610879 A GB 8610879A GB 2216678 B GB2216678 B GB 2216678B
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- optical apparatus
- tuneable filter
- tuneable
- filter
- 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 - Lifetime
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
- G02B6/4246—Bidirectionally operating package structures
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
-
- 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
- G02B6/293—Optical 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
- G02B6/29304—Optical 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
- G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
- G02B6/29317—Light guides of the optical fibre type
- G02B6/29322—Diffractive elements of the tunable 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
- G02B6/26—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
- G02B6/293—Optical 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
- G02B6/29379—Optical 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
- G02B6/29395—Optical 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
-
- 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
- G02B6/293—Optical 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
- G02B6/29346—Optical 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
- G02B6/29361—Interference 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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB8512411 | 1985-05-16 |
Publications (3)
Publication Number | Publication Date |
---|---|
GB8610879D0 GB8610879D0 (en) | 1989-07-05 |
GB2216678A GB2216678A (en) | 1989-10-11 |
GB2216678B true 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)
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 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB714955A (en) * | 1952-03-31 | 1954-09-08 | Technicolor Motion Picture | Improvements in or relating to light dividing systems |
GB716332A (en) * | 1951-07-21 | 1954-10-06 | Technicolor Motion Picture | Optical beam splitting or combining systems |
GB768036A (en) * | 1954-09-17 | 1957-02-13 | Technicolor Motion Picture | Improvements in or relating to optical beam splitting or combining systems |
GB2014752A (en) * | 1978-01-31 | 1979-08-30 | Nippon Telegraph & Telephone | Element for use in optical multiplexer or de-multiplexer |
EP0146957A2 (en) * | 1983-12-22 | 1985-07-03 | Alcatel N.V. | Optical multiplexer/demultiplexer |
-
1986
- 1986-05-02 GB GB8610879A patent/GB2216678B/en not_active Expired - Lifetime
Patent Citations (5)
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 |
GB2014752A (en) * | 1978-01-31 | 1979-08-30 | Nippon Telegraph & Telephone | Element for use in optical multiplexer or de-multiplexer |
EP0146957A2 (en) * | 1983-12-22 | 1985-07-03 | Alcatel N.V. | Optical multiplexer/demultiplexer |
Also Published As
Publication number | Publication date |
---|---|
GB8610879D0 (en) | 1989-07-05 |
GB2216678A (en) | 1989-10-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19970502 |