GB2313249B - Passive acousto-optic modulator - Google Patents

Passive acousto-optic modulator

Info

Publication number
GB2313249B
GB2313249B GB9718098A GB9718098A GB2313249B GB 2313249 B GB2313249 B GB 2313249B GB 9718098 A GB9718098 A GB 9718098A GB 9718098 A GB9718098 A GB 9718098A GB 2313249 B GB2313249 B GB 2313249B
Authority
GB
United Kingdom
Prior art keywords
optic modulator
passive acousto
acousto
passive
modulator
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.)
Revoked
Application number
GB9718098A
Other versions
GB9718098D0 (en
GB2313249A (en
Inventor
Andrew James Thomas
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.)
UK Secretary of State for Defence
Original Assignee
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
Priority claimed from GBGB9504298.2A external-priority patent/GB9504298D0/en
Application filed by UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB9718098A priority Critical patent/GB2313249B/en
Publication of GB9718098D0 publication Critical patent/GB9718098D0/en
Publication of GB2313249A publication Critical patent/GB2313249A/en
Application granted granted Critical
Publication of GB2313249B publication Critical patent/GB2313249B/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
    • G01H9/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
    • G01H9/004—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors
    • G01H9/006—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means using fibre optic sensors the vibrations causing a variation in the relative position of the end of a fibre and another element
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/008—Transducers other than those covered by groups H04R9/00 - H04R21/00 using optical signals for detecting or generating sound
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02—Transducers using more than one principle simultaneously

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Light Control Or Optical Switches (AREA)
GB9718098A 1995-03-03 1996-02-29 Passive acousto-optic modulator Revoked GB2313249B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9718098A GB2313249B (en) 1995-03-03 1996-02-29 Passive acousto-optic modulator

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9504298.2A GB9504298D0 (en) 1995-03-03 1995-03-03 Passive acousto-optic modulator
GB9718098A GB2313249B (en) 1995-03-03 1996-02-29 Passive acousto-optic modulator
PCT/GB1996/000450 WO1996028001A1 (en) 1995-03-03 1996-02-29 Passive acousto-optic modulator

Publications (3)

Publication Number Publication Date
GB9718098D0 GB9718098D0 (en) 1997-10-29
GB2313249A GB2313249A (en) 1997-11-19
GB2313249B true GB2313249B (en) 1999-01-20

Family

ID=26306614

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9718098A Revoked GB2313249B (en) 1995-03-03 1996-02-29 Passive acousto-optic modulator

Country Status (1)

Country Link
GB (1) GB2313249B (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283114A (en) * 1980-04-11 1981-08-11 The United States Of America As Represented By The Secretary Of The Navy Fiber optic light valve
US4345482A (en) * 1978-11-16 1982-08-24 Asea Aktiebolag Fiber optical devices for measuring physical phenomenon
FR2508754A1 (en) * 1981-06-25 1982-12-31 Comp Generale Electricite Passive fibre=optic hydrophone utilising interferometer - comprises two paths in transparent plate of refractive index varied by electric field
US4373781A (en) * 1979-02-12 1983-02-15 Gte Laboratories Incorporated Acoustic to optical pulse code modulating transducer
US4942767A (en) * 1986-11-19 1990-07-24 Massachusetts Institute Of Technology Pressure transducer apparatus
US5247490A (en) * 1992-06-04 1993-09-21 Martin Marietta Corporation Pressure-compensated optical acoustic sensor

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4345482A (en) * 1978-11-16 1982-08-24 Asea Aktiebolag Fiber optical devices for measuring physical phenomenon
US4373781A (en) * 1979-02-12 1983-02-15 Gte Laboratories Incorporated Acoustic to optical pulse code modulating transducer
US4283114A (en) * 1980-04-11 1981-08-11 The United States Of America As Represented By The Secretary Of The Navy Fiber optic light valve
FR2508754A1 (en) * 1981-06-25 1982-12-31 Comp Generale Electricite Passive fibre=optic hydrophone utilising interferometer - comprises two paths in transparent plate of refractive index varied by electric field
US4942767A (en) * 1986-11-19 1990-07-24 Massachusetts Institute Of Technology Pressure transducer apparatus
US5247490A (en) * 1992-06-04 1993-09-21 Martin Marietta Corporation Pressure-compensated optical acoustic sensor

Also Published As

Publication number Publication date
GB9718098D0 (en) 1997-10-29
GB2313249A (en) 1997-11-19

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Legal Events

Date Code Title Description
773K Patent revoked under sect. 73(2)/1977