JPS57158618A - Acoustic-optical modulator - Google Patents

Acoustic-optical modulator

Info

Publication number
JPS57158618A
JPS57158618A JP4250881A JP4250881A JPS57158618A JP S57158618 A JPS57158618 A JP S57158618A JP 4250881 A JP4250881 A JP 4250881A JP 4250881 A JP4250881 A JP 4250881A JP S57158618 A JPS57158618 A JP S57158618A
Authority
JP
Japan
Prior art keywords
shift
modulator
housing
lens
incident
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
JP4250881A
Other languages
Japanese (ja)
Inventor
Kenichi Morimoto
Original Assignee
Oki 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
Application filed by Oki Electric Ind Co Ltd filed Critical Oki Electric Ind Co Ltd
Priority to JP4250881A priority Critical patent/JPS57158618A/en
Publication of JPS57158618A publication Critical patent/JPS57158618A/en
Pending legal-status Critical Current

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 simply attain the adjustment to a Bragg angle with just a shift in the uniaxial direction by providing an acoustic-optical modulator attached to a housing plus a control means to give a fine shift to the housing in the direction orthogonal to the optical axis of a lens. CONSTITUTION:The 1st lens 2 which makes the light beam incident to an AO modulator is provided along with an AO modulator 3 that reflects the beam with a Bragg angle and the 2nd lens 4 that turns the primary beam reflected from the nodulator 3 into parallel beams. These component parts are attached to a housing 10. For this housing 10, only the incident angle varies with no change given to the modulator 3 by the function of the lens since the lenses 2 and 4 plus the modulator 3 are set on the same optical axis. If the degree of shift of the housing 10 is refrerred to as (d), the incident angle theta is proportional to the degree (d). In face, however, the incident angle has some shift due to the shift of initialization, a shift error, etc. Thus a fine shift is carried out by a fine shift board to an estimated position where an incident Bragg angle is obtained. In such a way, the adjustment is simply made possible to a Bragg angle.
JP4250881A 1981-03-25 1981-03-25 Acoustic-optical modulator Pending JPS57158618A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4250881A JPS57158618A (en) 1981-03-25 1981-03-25 Acoustic-optical modulator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4250881A JPS57158618A (en) 1981-03-25 1981-03-25 Acoustic-optical modulator

Publications (1)

Publication Number Publication Date
JPS57158618A true JPS57158618A (en) 1982-09-30

Family

ID=12638000

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4250881A Pending JPS57158618A (en) 1981-03-25 1981-03-25 Acoustic-optical modulator

Country Status (1)

Country Link
JP (1) JPS57158618A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018091930A (en) * 2016-11-30 2018-06-14 澁谷工業株式会社 Terahertz light generation device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2018091930A (en) * 2016-11-30 2018-06-14 澁谷工業株式会社 Terahertz light generation device

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