JPS5878119A - Acoustooptic modulating element - Google Patents

Acoustooptic modulating element

Info

Publication number
JPS5878119A
JPS5878119A JP17679281A JP17679281A JPS5878119A JP S5878119 A JPS5878119 A JP S5878119A JP 17679281 A JP17679281 A JP 17679281A JP 17679281 A JP17679281 A JP 17679281A JP S5878119 A JPS5878119 A JP S5878119A
Authority
JP
Japan
Prior art keywords
switching
modulating element
acoustooptic
acousto
electroacoustic
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
JP17679281A
Other languages
Japanese (ja)
Inventor
Shuichi Watanabe
修一 渡辺
Takeshi Yamane
毅士 山根
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 JP17679281A priority Critical patent/JPS5878119A/en
Publication of JPS5878119A publication Critical patent/JPS5878119A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 
    • G02F1/11—Devices 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Lasers (AREA)

Abstract

PURPOSE:To apply an acoustooptical modulating element in various fields, by providing plural electroacoustic transducers on the acoustooptic modulating element, oscillating them independently, and executing plural different modulations to laser light. CONSTITUTION:A solid-state laser soubstance 11 is energized by an energizing light source 11 and condenser 13, is placed in a resonator consisting of reflectors 14, 15, and Q switching and mode locking operations are executed through acoustooptic modulator 16. The optical modulator 16 is constituted of electroacoustic tranducers 20, 21 for forming ultrasonic phase diffraction gratings 18, 19 on an ultrasonic medium 17 made of molten quartz. To the transducers 20, 21, high- frequency signals from a high-frequency driver 22 and 23 for Q switching and mode locking are applied, respectively. Accordingly, plural different modulations are executed, also the device is made small-sized, its cost is reduced, and also it can be applied in various fields.

Description

【発明の詳細な説明】 この発明は、音譬光学的元変ｆｉｌ１票子に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an phono-optical element change fil1 ticket.

音波による元の散乱現象がレーザ元の周波数、強贋、お
よび方向を制御する有用な手段であることは、すでに知
られている。とヤわけ、この制御法により、光通信、情
報処理、レーザ微細加工、光変調など、多方面に元技術
が使われている。It is already known that the phenomenon of scattering of sources by sound waves is a useful means of controlling the frequency, intensity, and direction of laser sources. However, thanks to this control method, the original technology is now being used in a wide variety of fields, including optical communications, information processing, laser microfabrication, and optical modulation.

したがって、この多方面での元技術の応用により、従来
よシも、さらに、複雑な、かつ、精密な、元の変調効果
が要求されている。たとえば、モードロッキングとＱス
イッチング等、２種以上の元の変調を同時に、行なう場
合、従来は、２つ以上の変ｉ１１素子が、必要であり、
それにともない装置の大きさも、大きなものと、ならざ
るを兄なかりた。Therefore, with the application of this original technology in many fields, more complex and precise original modulation effects are required than ever before. For example, when modulating two or more types of originals such as mode-locking and Q-switching at the same time, conventionally, two or more variable i11 elements are required.
As a result, the size of the device had to be large as well.

この発明の目的は、ひとつの超音波媒体に、電気音響変
換子を、複数個接着し、おのおのを独立に、振動させる
ことによって、ひとつの音響光学的元変１４素子で、複
数の異なった変調を同時に、ま九−は、独立に行なうこ
とによ）、多方面での応用を可能とすること金目的とし
た音響光学釣元変調素子を提供することにある。The purpose of this invention is to bond a plurality of electroacoustic transducers to one ultrasonic medium and vibrate each one independently, thereby producing a plurality of different modulations with one acousto-optic element of 14 elements. At the same time, it is an object of the present invention to provide an acousto-optic modulation element which is capable of being applied in a wide variety of fields by independently performing the following steps.

次に、仁の発明に関して図面を参照して説明する。Next, Jin's invention will be explained with reference to the drawings.

第１図は、本発明の′素子の実施例として、Ｑスイッチ
ング、および、モードロツキフグ動作ＯＶ−ザ共振器の
概略構成ｔ−表わしたものである。FIG. 1 shows a schematic configuration of a Q-switching and mode locking puffer resonator as an embodiment of the element of the present invention.

固体レーザ物質１１は、励起光源１２と集光器１３によ
り、励起され、反射鏡１４．１５から構成されるレーザ
共振器中に置かれている。また、レーザ発振ｔ−Ｑスイ
ッチング、モードロッキング動作させる本発明の音響光
学的、光変調器１６がレーザ共振器中におかれている。A solid-state laser material 11 is excited by an excitation light source 12 and a condenser 13 and is placed in a laser cavity consisting of reflectors 14, 15. Further, an acousto-optic optical modulator 16 of the present invention that performs laser oscillation t-Q switching and mode-locking operation is placed in the laser resonator.

この音響光学釣元変調器１６は、溶融召集で作られた超
音波媒体１７に超音波位相回折格子１８゜１９１−形成
する電気音響変換子２０．２１から構成されている。こ
の電気音響変換子２０．２１はそれぞれ、Ｑスイッチン
グ用高周波ドライバ２２゜モードロッキング用高周波ド
ライバ２３からの高周波信号が印加されている。This acousto-optic modulator 16 consists of an electroacoustic transducer 20.21 which forms an ultrasonic phase grating 18.degree. 191 in an ultrasonic medium 17 produced by melt condensation. A high frequency signal from a Q switching high frequency driver 22 and a mode locking high frequency driver 23 is applied to each of the electroacoustic transducers 20 and 21.

各高周波ドライバ２２．２３は、それぞれ外部信号、２
４によシ制御されている。したがって、Ｑスイッチング
用高周波ドライバ２２によって励振された電気音響変換
子２０によ〉生ずる超音波位相回折格子１８によってＱ
スイッチング動作を、また、モードロッキング用高周波
ドライバ２３によって励振された電気音響変換子２電に
よ）生ずる超音波位相回折格子によってモードロッキン
グ動作を同時に、または、独立、にそれぞれ、行なうこ
とができる。よって、ひとつの超音波媒体に、−複数個
の電気音響変換子を設けることによシ、複数の異なった
変調を行なうことができ、装置の小型化、コストの低減
全行なうことができる。Each high frequency driver 22, 23 receives an external signal, 2
It is controlled by 4. Therefore, the ultrasonic phase diffraction grating 18 generated by the electroacoustic transducer 20 excited by the Q-switching high-frequency driver 22
The switching operation and the mode-locking operation can be performed simultaneously or independently by the ultrasonic phase diffraction grating generated by the electroacoustic transducer 2 electric current excited by the mode-locking high-frequency driver 23. Therefore, by providing a plurality of electroacoustic transducers in one ultrasonic medium, a plurality of different modulations can be performed, and the device can be made smaller and the cost can be reduced.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、この発明の素子の実施例の概略構成を、示す
ブロック図である。 １１・・・・・・固体レーザ物質、１２・・・・・・励
起光源、１３・・・・・・集光器、１４．１５・・・・
・・レーザ共振器を構成する反射鏡、１６・・・・・・
音響光学的、光変調器、１７・・・・・・超音波媒体、
１８．１９・・・・・・超音波位相回折格子、２０．２
１・・・・・・電気音響変換子、２２゜２３・・・・・
・高周波ドライバ、２４・・・・・・外部制御回路であ
る。FIG. 1 is a block diagram showing a schematic configuration of an embodiment of the device of the present invention. 11... Solid laser material, 12... Excitation light source, 13... Concentrator, 14.15...
...Reflecting mirror that constitutes the laser resonator, 16...
acousto-optic, light modulator, 17... ultrasonic medium,
18.19... Ultrasonic phase diffraction grating, 20.2
1...Electroacoustic transducer, 22゜23...
- High frequency driver, 24...external control circuit.

Claims (1)

【特許請求の範囲】[Claims] 元を音波を用いて変調する音響光学釣元変調素子におい
て、ひとつの超音波媒体に複数個の電気音響変換子を設
け、そのおのおのを独立に振動させる手段を設け、ひと
つの音響光学的元変ｇ虞子で、レーザ元に対して複数の
異なった変ｇｔ−行なうことｔ−特徴とする音響光学的
光質１Ｉ１１＃ｃ子。In an acousto-optic modulator that modulates an acousto-optic element using sound waves, a single ultrasonic medium is provided with a plurality of electroacoustic transducers, and means for independently vibrating each transducer is provided to modulate a single acousto-optic element. Acousto-optic light quality characterized by several different changes to the laser source.
JP17679281A 1981-11-04 1981-11-04 Acoustooptic modulating element Pending JPS5878119A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17679281A JPS5878119A (en) 1981-11-04 1981-11-04 Acoustooptic modulating element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17679281A JPS5878119A (en) 1981-11-04 1981-11-04 Acoustooptic modulating element

Publications (1)

Publication Number Publication Date
JPS5878119A true JPS5878119A (en) 1983-05-11

Family

ID=16019923

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17679281A Pending JPS5878119A (en) 1981-11-04 1981-11-04 Acoustooptic modulating element

Country Status (1)

Country Link
JP (1) JPS5878119A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009518868A (en) * 2005-12-06 2009-05-07 エレクトロ サイエンティフィック インダストリーズ インコーポレーテッド Q-switched laser undergoing mode synchronization simultaneously
RU2606348C1 (en) * 2015-06-08 2017-01-10 Федеральное государственное бюджетное учреждение науки Институт автоматики и электрометрии Сибирского отделения Российской академии наук (ИАиЭ СО РАН) Laser with resonator q-factor modulation and mode synchronization
CN107005019A (en) * 2014-09-18 2017-08-01 费哈激光技术有限责任公司 Tune Q CO with acousto-optic modulator2Laser materials processing system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009518868A (en) * 2005-12-06 2009-05-07 エレクトロ サイエンティフィック インダストリーズ インコーポレーテッド Q-switched laser undergoing mode synchronization simultaneously
CN107005019A (en) * 2014-09-18 2017-08-01 费哈激光技术有限责任公司 Tune Q CO with acousto-optic modulator2Laser materials processing system
RU2606348C1 (en) * 2015-06-08 2017-01-10 Федеральное государственное бюджетное учреждение науки Институт автоматики и электрометрии Сибирского отделения Российской академии наук (ИАиЭ СО РАН) Laser with resonator q-factor modulation and mode synchronization

Similar Documents

Publication Publication Date Title
JP2852693B2 (en) Marking method of moving object by laser beam
US3256443A (en) Laser multiplex communication system
JPH06317772A (en) Laser display device
KR920020356A (en) Laser system and its output control method
JPS6122323A (en) Method and apparatus for altering phase characteristic of beam in coherent radiation
GB2043375A (en) Method for driving a light scanning apparatus
JPS5878119A (en) Acoustooptic modulating element
JP2919037B2 (en) Laser pattern forming equipment
JPS5775482A (en) Q switch laser device
JPH1197783A (en) Q switched pulse laser driving method
JPS60119786A (en) Q switch laser device
JPS5824119A (en) Optical modulating device
JPH10246875A (en) Acousto-optical modulator
EP3531197B1 (en) Control system including a beam stabilizer and a phase modulation capable acousto-optic modulator for diverting laser output intensity noise to a first order laser light beam and related methods
USH822H (en) Method of amplitude modulating a laser beam
JPH0621537A (en) Ring laser
JPS59101220U (en) optical scanning device
JPH01202710A (en) Acousto-optic optical modulation element
Fukumoto et al. High-Speed Facsimile Recording with Laser Light Sources
JPS5974775A (en) Laser printer
KR100387228B1 (en) Acoustic-optic modulator in which diffraction efficiency is improved and modulating method thereof
JP2001053367A (en) Optical modulator and modulating method
JPH0339923A (en) Variable density scanning device
JPS622293B2 (en)
JPH0535301Y2 (en)