JPS5652719A - Acousto-optic element - Google Patents

Acousto-optic element

Info

Publication number
JPS5652719A
JPS5652719A JP12920579A JP12920579A JPS5652719A JP S5652719 A JPS5652719 A JP S5652719A JP 12920579 A JP12920579 A JP 12920579A JP 12920579 A JP12920579 A JP 12920579A JP S5652719 A JPS5652719 A JP S5652719A
Authority
JP
Japan
Prior art keywords
face
sound waves
light
acousto
wave
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
JP12920579A
Other languages
Japanese (ja)
Inventor
Yoshinori Oota
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12920579A priority Critical patent/JPS5652719A/en
Publication of JPS5652719A publication Critical patent/JPS5652719A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To diffract the light beam entered by the sound waves reflected by a curved face and perform ultrasonic light modulation of high efficiency at a high speed by forming another face of an acousto-optic medium provided with a transverse wave piezoelectric converter on one face to a curved face which reflects sound waves.
CONSTITUTION: Since the ridge assumed by another face 7 differing from the face 6 of an acousto-optic medium 1 provided with a piezoelectric converter 2 and the face 8 orthogonal with this is polished to a radius R of curvature, the transverse sound waves emitted from the piezoelectric converter 2 have their wave face advancing direction bent by 90° by a curved face 9 and intersect nearly at a light angle with incident light 3. At this time, the sound waves are converted not to flat face but to the wave face having curvature by the curved face; therefore, the angle components that the sound waves possess spreads and this makes it possible to satisfy Bragg's conditions over the entire angle component of the incident light 3 entering by being focused, thus an ultrasonic light modulator of a high speed and an optical fiber switch of low crosstalk may be formed.
COPYRIGHT: (C)1981,JPO&Japio
JP12920579A 1979-10-05 1979-10-05 Acousto-optic element Pending JPS5652719A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12920579A JPS5652719A (en) 1979-10-05 1979-10-05 Acousto-optic element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12920579A JPS5652719A (en) 1979-10-05 1979-10-05 Acousto-optic element

Publications (1)

Publication Number Publication Date
JPS5652719A true JPS5652719A (en) 1981-05-12

Family

ID=15003727

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12920579A Pending JPS5652719A (en) 1979-10-05 1979-10-05 Acousto-optic element

Country Status (1)

Country Link
JP (1) JPS5652719A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01138542A (en) * 1987-11-26 1989-05-31 Central Res Inst Of Electric Power Ind Direct injecting method for light information of pulse modulation optical communication

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51136431A (en) * 1975-05-21 1976-11-25 Hagiwara Denki Kk Diferacted electric sound transducer

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51136431A (en) * 1975-05-21 1976-11-25 Hagiwara Denki Kk Diferacted electric sound transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01138542A (en) * 1987-11-26 1989-05-31 Central Res Inst Of Electric Power Ind Direct injecting method for light information of pulse modulation optical communication

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