GB2516910B - Tuneable filters - Google Patents

Tuneable filters

Info

Publication number
GB2516910B
GB2516910B GB1314035.5A GB201314035A GB2516910B GB 2516910 B GB2516910 B GB 2516910B GB 201314035 A GB201314035 A GB 201314035A GB 2516910 B GB2516910 B GB 2516910B
Authority
GB
United Kingdom
Prior art keywords
tuneable filters
tuneable
filters
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 - Fee Related
Application number
GB1314035.5A
Other versions
GB201314035D0 (en
GB2516910A (en
Inventor
Richard Hollins
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.)
Minister of National Defence of Canada
UK Secretary of State for Defence
Original Assignee
Minister of National Defence of Canada
UK Secretary of State for Defence
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 Minister of National Defence of Canada, UK Secretary of State for Defence filed Critical Minister of National Defence of Canada
Priority to GB1314035.5A priority Critical patent/GB2516910B/en
Publication of GB201314035D0 publication Critical patent/GB201314035D0/en
Publication of GB2516910A publication Critical patent/GB2516910A/en
Application granted granted Critical
Publication of GB2516910B publication Critical patent/GB2516910B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/21—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference
    • G02F1/216—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  by interference using liquid crystals, e.g. liquid crystal Fabry-Perot filters
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
    • H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
    • H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
    • H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
    • H01S3/10023—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors
    • H01S3/1003—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers by functional association of additional optical elements, e.g. filters, gratings, reflectors tunable optical elements, e.g. acousto-optic filters, tunable gratings
GB1314035.5A 2013-08-06 2013-08-06 Tuneable filters Expired - Fee Related GB2516910B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1314035.5A GB2516910B (en) 2013-08-06 2013-08-06 Tuneable filters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1314035.5A GB2516910B (en) 2013-08-06 2013-08-06 Tuneable filters

Publications (3)

Publication Number Publication Date
GB201314035D0 GB201314035D0 (en) 2013-09-18
GB2516910A GB2516910A (en) 2015-02-11
GB2516910B true GB2516910B (en) 2016-01-06

Family

ID=49224213

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1314035.5A Expired - Fee Related GB2516910B (en) 2013-08-06 2013-08-06 Tuneable filters

Country Status (1)

Country Link
GB (1) GB2516910B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070268939A1 (en) * 2003-09-30 2007-11-22 Cattellan Susanna M Wavelength Control of an External-Cavity Tuneable Laser
US20080080050A1 (en) * 2006-09-29 2008-04-03 Xinghua Wang Wavelength discrimination filter for infrared wavelengths

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070268939A1 (en) * 2003-09-30 2007-11-22 Cattellan Susanna M Wavelength Control of an External-Cavity Tuneable Laser
US20080080050A1 (en) * 2006-09-29 2008-04-03 Xinghua Wang Wavelength discrimination filter for infrared wavelengths

Also Published As

Publication number Publication date
GB201314035D0 (en) 2013-09-18
GB2516910A (en) 2015-02-11

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Legal Events

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

Effective date: 20180806