JPS57168232A - Acoustooptic element - Google Patents

Acoustooptic element

Info

Publication number
JPS57168232A
JPS57168232A JP5414181A JP5414181A JPS57168232A JP S57168232 A JPS57168232 A JP S57168232A JP 5414181 A JP5414181 A JP 5414181A JP 5414181 A JP5414181 A JP 5414181A JP S57168232 A JPS57168232 A JP S57168232A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
slots
etc
dielectric film
split
deg
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.)
Pending
Application number
JP5414181A
Inventor
Hiroshi Kuroda
Original Assignee
Matsushita Electric Ind Co 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

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices 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
    • G02F1/01Devices 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
    • G02F1/11Devices 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 acousto-optical elements, e.g. using variable diffraction by sound or like mechanical waves

Abstract

PURPOSE:To make the intensity distribution of an acoustic wave beam nearly rectangular and uniform in a beam vertical plane by dividing an electroacoustic element in two dimensions, and then driving mutually adjacent electroacoustic element pieces with a 180 deg. phase difference. CONSTITUTION:On an acoustooptic medium 6, a base electrode 7 is mounted, and on it, a piezoelectric diaphragm 8 of LiNbO3 is bonded under pressure with low melting point metal such as Sn, etc.; and a dielectric film is vapor-deposited with a mask, etc., and after an upper electrode 9 is vapor-deposited on the dielectric film, slots 10 and 10', and 11 and 11' are formed with a wire saw, etc. Here, the slots 10' and 11' split the upper and lower electrodes 9 and 7, and the slots 10 and 11 split the upper electrode 9 and the dielectric film 13 only, so applying a high frequency signal to a terminal RF allows split adjacent piezoelectric diapharagms to oscillator with a 180 deg. phase difference. Consequently, the intensity distribution of an acoustic wave beam becomes uniform and even when the light beam is stopped down, the intensity of distribution of diffracted light never deviates from that of a Gauss type, speeding response.
JP5414181A 1981-04-09 1981-04-09 Acoustooptic element Pending JPS57168232A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5414181A JPS57168232A (en) 1981-04-09 1981-04-09 Acoustooptic element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5414181A JPS57168232A (en) 1981-04-09 1981-04-09 Acoustooptic element

Publications (1)

Publication Number Publication Date
JPS57168232A true true JPS57168232A (en) 1982-10-16

Family

ID=12962278

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5414181A Pending JPS57168232A (en) 1981-04-09 1981-04-09 Acoustooptic element

Country Status (1)

Country Link
JP (1) JPS57168232A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61184092A (en) * 1985-05-29 1986-08-16 Furuno Electric Co Ltd Transmiting and receiving device
JPS61222399A (en) * 1985-03-27 1986-10-02 Furuno Electric Co Ltd Wave transmitter-receiver
JPS61243383A (en) * 1985-04-19 1986-10-29 Furuno Electric Co Ltd Wave receiver/transmitter
JPS61274497A (en) * 1985-05-29 1986-12-04 Furuno Electric Co Ltd Sound wave transmitter-receiver
JPS63118710A (en) * 1986-11-07 1988-05-23 Matsushita Electric Ind Co Ltd Acoustooptic element
US5075795A (en) * 1990-04-19 1991-12-24 The University Of Rochester Electro-optic device for optical signal processing at high repetition rates

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61222399A (en) * 1985-03-27 1986-10-02 Furuno Electric Co Ltd Wave transmitter-receiver
JPH0481397B2 (en) * 1985-03-27 1992-12-22 Furuno Electric Co
JPH0412828B2 (en) * 1985-04-19 1992-03-05 Furuno Electric Co
JPS61243383A (en) * 1985-04-19 1986-10-29 Furuno Electric Co Ltd Wave receiver/transmitter
JPS61184092A (en) * 1985-05-29 1986-08-16 Furuno Electric Co Ltd Transmiting and receiving device
JPH0426278B2 (en) * 1985-05-29 1992-05-06 Furuno Electric Co
JPH0481400B2 (en) * 1985-05-29 1992-12-22 Furuno Electric Co
JPS61274497A (en) * 1985-05-29 1986-12-04 Furuno Electric Co Ltd Sound wave transmitter-receiver
JPS63118710A (en) * 1986-11-07 1988-05-23 Matsushita Electric Ind Co Ltd Acoustooptic element
US5075795A (en) * 1990-04-19 1991-12-24 The University Of Rochester Electro-optic device for optical signal processing at high repetition rates

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