GB2484648B - Compact optical delay line - Google Patents

Compact optical delay line

Info

Publication number
GB2484648B
GB2484648B GB0214827.8A GB0214827A GB2484648B GB 2484648 B GB2484648 B GB 2484648B GB 0214827 A GB0214827 A GB 0214827A GB 2484648 B GB2484648 B GB 2484648B
Authority
GB
United Kingdom
Prior art keywords
delay line
optical delay
compact optical
compact
line
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
GB0214827.8A
Other versions
GB2484648A (en
GB0214827D0 (en
Inventor
David Adrian Carr
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.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research 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 Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Publication of GB0214827D0 publication Critical patent/GB0214827D0/en
Publication of GB2484648A publication Critical patent/GB2484648A/en
Application granted granted Critical
Publication of GB2484648B publication Critical patent/GB2484648B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/2806—Employing storage or delay devices which preserve the pulse form of the echo signal, e.g. for comparing and combining echoes received during different periods
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/38—Jamming means, e.g. producing false echoes
    • 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
    • G02B6/29319—With a cascade of diffractive elements or of diffraction operations
    • G02B6/2932—With a cascade of diffractive elements or of diffraction operations comprising a directional router, e.g. directional coupler, circulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Optical Communication System (AREA)
GB0214827.8A 2001-10-17 2002-06-27 Compact optical delay line Expired - Fee Related GB2484648B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB0124918.4A GB0124918D0 (en) 2001-10-17 2001-10-17 Compact optical delay line

Publications (3)

Publication Number Publication Date
GB0214827D0 GB0214827D0 (en) 2011-02-02
GB2484648A GB2484648A (en) 2012-04-25
GB2484648B true GB2484648B (en) 2012-11-14

Family

ID=43598545

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB0124918.4A Ceased GB0124918D0 (en) 2001-10-17 2001-10-17 Compact optical delay line
GB0214827.8A Expired - Fee Related GB2484648B (en) 2001-10-17 2002-06-27 Compact optical delay line

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB0124918.4A Ceased GB0124918D0 (en) 2001-10-17 2001-10-17 Compact optical delay line

Country Status (1)

Country Link
GB (2) GB0124918D0 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108508676A (en) * 2017-09-25 2018-09-07 中国人民解放军国防科技大学 Interval adjustable optical frequency comb based on phase modulation and optical fiber cavity soliton and generation method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5663823A (en) * 1995-05-16 1997-09-02 Kabushiki Kaisha Toshiba Optical transmission system, optical transmission module, and an optical modulator
US5926297A (en) * 1996-09-03 1999-07-20 Fujitsu Limited Optical modulating device and optical modulating method
US5955983A (en) * 1993-02-17 1999-09-21 Li; Ming-Chiang Optical fiber based radars
US5982963A (en) * 1997-12-15 1999-11-09 University Of Southern California Tunable nonlinearly chirped grating

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5955983A (en) * 1993-02-17 1999-09-21 Li; Ming-Chiang Optical fiber based radars
US5663823A (en) * 1995-05-16 1997-09-02 Kabushiki Kaisha Toshiba Optical transmission system, optical transmission module, and an optical modulator
US5926297A (en) * 1996-09-03 1999-07-20 Fujitsu Limited Optical modulating device and optical modulating method
US5982963A (en) * 1997-12-15 1999-11-09 University Of Southern California Tunable nonlinearly chirped grating

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108508676A (en) * 2017-09-25 2018-09-07 中国人民解放军国防科技大学 Interval adjustable optical frequency comb based on phase modulation and optical fiber cavity soliton and generation method

Also Published As

Publication number Publication date
GB2484648A (en) 2012-04-25
GB0124918D0 (en) 2011-02-02
GB0214827D0 (en) 2011-02-02

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Legal Events

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

Effective date: 20130214