JPH0277720A - Multichannel optical modulating element - Google Patents

Multichannel optical modulating element

Info

Publication number
JPH0277720A
JPH0277720A JP22843688A JP22843688A JPH0277720A JP H0277720 A JPH0277720 A JP H0277720A JP 22843688 A JP22843688 A JP 22843688A JP 22843688 A JP22843688 A JP 22843688A JP H0277720 A JPH0277720 A JP H0277720A
Authority
JP
Japan
Prior art keywords
wiring board
lead wire
ultrasonic wave
printed wiring
lead wires
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
JP22843688A
Other languages
Japanese (ja)
Inventor
Takako Takeda
竹田　隆子
Fumio Tanaka
文雄 田中
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP22843688A priority Critical patent/JPH0277720A/en
Publication of JPH0277720A publication Critical patent/JPH0277720A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To omit a lead wire from an element part, and to reduce coupling due to the floating capacity between lead wires and improve the operability by soldering a filmy printed wiring board to an electrode part on its 1st surface through through holes provided to the wiring board and connecting it to a lead wire on the 2nd surface. CONSTITUTION:An ultrasonic wave transducer 2 which has electrode parts 3a-3d for modulating plural laser beams individually is provided to an acoustooptic medium 1. The filmy printed wiring board 4 which is provided with many through holes 8 is fixed to the surface of this ultrasonic wave transducer 2 through the through holes 8 by soldering. Further, the electrode parts 3a-3d of the ultrasonic wave transducer 2 are soldered on the 1st surface 4a of the wiring board 4 and the lead wires 6a-6d are connected on the 2nd surface 4b, so no lead wire from the ultrasonic wave transducer 2 is required and while the high frequency coupling due to the floating capacity between the lead wires is reduced, the operability of assembly is improved.

Description

【発明の詳細な説明】 （産業−１−の利用分野） 本発明は複数本のレーザビームを同時に変調する多チャ
ンネル光変調素子に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Application in Industry-1-) The present invention relates to a multi-channel optical modulation element that modulates a plurality of laser beams simultaneously.

（従来の技術） 従来、この種の多チャンネル光変調素子は、第３図に示
すような構成であった。同図において、１１は音響）５
光学媒体、］２は超音波トランスジューサ、１３ａ−＋
３ｄは電極、１４ａ−］４ｄはリード線、１５はマツチ
ング部、１６ａ〜］、６ｄは素子部リード線であり、１
７はリード線固定板である。(Prior Art) Conventionally, this type of multi-channel optical modulator has a configuration as shown in FIG. In the same figure, 11 is acoustic) 5
optical medium,] 2 is an ultrasonic transducer, 13a-+
3d is an electrode, 14a-]4d is a lead wire, 15 is a matching part, 16a-], 6d is an element part lead wire, 1
7 is a lead wire fixing plate.

（発明が解決しようとする課題） 」１記従来の構成では、リ−１・線間の？”！遊客量に
よる高周波カップリングを小さくするように素子部から
のリード線を短くしな（づればならず、そのため素子部
からのリード線とマツチング部へのリード線の半り月付
けの作業が著しく困難である欠点があった。(Problems to be Solved by the Invention) 1. In the conventional configuration, what is the problem between the wire 1 and the wire? ”!In order to reduce high-frequency coupling due to the number of visitors, the lead wires from the element section must be shortened. Therefore, the work of attaching the lead wires from the element section and the lead wires to the matching section with half-lengths is necessary. It had the disadvantage of being extremely difficult.

本発明の目的は、従来の欠点を解消し、多チャンネル光
変調素子の製造の作業性を向上し、かつ、リード線間の
浮遊容量による高周波カップリングを小さくする多チャ
ンネル光変調素子を提供することである。An object of the present invention is to provide a multichannel optical modulation device that eliminates the conventional drawbacks, improves the workability of manufacturing the multichannel optical modulation device, and reduces high frequency coupling due to stray capacitance between lead wires. That's true.

（課題を解決するための手段） 本発明の多チャンネル光変調素子は、複数のレーザビー
ムを個々に変調するための電極部を有する超音波トラン
スジューサを設けた音響光学媒体と、第１の面で超音波
トランスジューサの電極部で半田付けされ、スルーホー
ルをもって第２の面と接続され、かつ第２の面でリード
線と接続するようにしたフィルム状のプリン１〜配線板
とからなるものである。(Means for Solving the Problems) A multichannel optical modulator of the present invention includes an acousto-optic medium provided with an ultrasonic transducer having an electrode portion for individually modulating a plurality of laser beams, and a first surface. It consists of a film-like pudding 1 to a wiring board, which are soldered at the electrodes of the ultrasonic transducer, connected to a second surface through a through hole, and connected to lead wires on the second surface. .

（作　用） Ｌ記構酸により、素子部からのリード線を設けなくても
よくな−）たため、リード線間の浮遊容量による高周波
カップリングが小さく′なり、１つのリード線から他の
リード線へ漏れ込む高周波電気信号が小さくなり、消光
比が改善され、さらに、熟練を要し、特殊な治具を必要
とした作業がなくなり、作業性が著しく向上することと
なる。(Function) Because of the structure L, there is no need to provide lead wires from the element section, so high frequency coupling due to stray capacitance between lead wires is reduced, and one lead wire can be connected to another lead wire. High-frequency electrical signals leaking into the wire are reduced, the extinction ratio is improved, and work that requires skill and special jigs is eliminated, resulting in a marked improvement in work efficiency.

（実施例） 本発明の一実施例を第１図および第２図に基づいて説明
する。第１図は本発明の多チャンネル光変調素子の側面
図であり、第２図は本発明のフィルム状プリン１〜配線
板の正面図である。(Example) An example of the present invention will be described based on FIGS. 1 and 2. FIG. 1 is a side view of a multi-channel light modulation element of the present invention, and FIG. 2 is a front view of a film-like print 1 to a wiring board of the present invention.

第１図において、１は音響光学媒体、２は超音波トラン
スジューサ、３８〜３ｄは電極、４はフィルム状プリン
１−配線板、４ａはフィルム状プリント配線板４の第１
の面であり、４ｂは第２の面である。５ａ〜５ｄは半田
付部、６ａ〜６ｄはマツチング部へのり、−ド線であり
、７はマツチング部である。第２図において、８はスル
ーホールである。In FIG. 1, 1 is an acousto-optic medium, 2 is an ultrasonic transducer, 38 to 3d are electrodes, 4 is a film-like printed wiring board 1-wiring board, and 4a is a first film-like printed wiring board 4.
, and 4b is the second surface. 5a to 5d are soldering parts, 6a to 6d are glued to the matching part and negative wires, and 7 is the matching part. In FIG. 2, 8 is a through hole.

ここで、フィルム状プリント配線板４にはポリイミド等
の高分子フィルムを用いたプリント配線板を使用する。Here, as the film-like printed wiring board 4, a printed wiring board using a polymer film such as polyimide is used.

また、フィルム状プリント配線板４の周囲には第２図に
示した多数のスルーホール８が設けられており、このス
ルーホール８を介して半田によりフィルム状プリント配
線板４は超音波トランスジューサ面に固定されている。Further, a large number of through holes 8 shown in FIG. 2 are provided around the film-like printed wiring board 4, and the film-like printed wiring board 4 is attached to the ultrasonic transducer surface by soldering through the through-holes 8. Fixed.

このようにフィルム状プリント配線板４を超音波トラン
スジューサ面」二に配置することにより１、第３図に示
した素子部からのリード線１．６ａ〜］、６ｄが不要と
なり、リード線間の浮遊容量によるカップリングが小さ
くなり、１つのリード線から他のリード線へ漏れ込む高
周波電気信号が小さくなり、消光比の改善および作業性
の向上をはかることができる。By arranging the film-like printed wiring board 4 on the ultrasonic transducer surface 2 in this way, the lead wires 1, 6a to 6d from the element section shown in FIG. Coupling due to stray capacitance is reduced, and high-frequency electrical signals leaking from one lead wire to another lead wire are reduced, making it possible to improve extinction ratio and workability.

（発明の効果） 一：３− 本発明によれば、複数のレーザビームを個々に変調する
ための電極部を有する超音波トランスジューサを設けた
音響光学媒体に第１の面で超音波１−ランスジューサの
電極部で半田付けされ、スルーホールをもって第２の面
に接続され、かつ第２の面でリード線と接続するように
したフィルム状のプリント配線板を設けることにより、
消光比の改善および作業性の向上をはかることができ、
その実用」二の効果は大である。(Effects of the Invention) 1:3- According to the present invention, an ultrasonic wave 1-lance is applied to an acousto-optic medium provided with an ultrasonic transducer having an electrode portion for individually modulating a plurality of laser beams. By providing a film-like printed wiring board that is soldered to the electrode part of the juicer, connected to the second surface with a through hole, and connected to the lead wire on the second surface,
It is possible to improve the extinction ratio and workability,
The second effect of its practical use is great.

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

第１図は本発明の一実施例における多チャンネル光変調
素子を示す側面図、第２図は同多チャンネル光変調素子
に使用したフィルム状プリント配線板の正面図、第３図
は従来の多チャンネル光変調素子の側面図である。 １　・・・音響光学媒体、　２　・・　超音波トランス
ジューサ、　３ａ〜３ｄ・・・電極、　４、・・・フィ
ルム状プリント配線板、　４ａ・・・第１の面、４ｂ・
　第２の面、　５ａ−５ｄ・・・半１１１付部、　６８
〜６ｄ・・・　リード線、７・・・マツチング部、　８
・・・スルーホール。 特許出願人　松下電器産業株式会社 第２図 第３図 ６ｄFIG. 1 is a side view showing a multi-channel optical modulator according to an embodiment of the present invention, FIG. 2 is a front view of a film-like printed wiring board used in the multi-channel optical modulator, and FIG. FIG. 2 is a side view of a channel light modulation element. DESCRIPTION OF SYMBOLS 1... Acousto-optic medium, 2... Ultrasonic transducer, 3a-3d... Electrode, 4... Film-shaped printed wiring board, 4a... First surface, 4b...
Second surface, 5a-5d...Half 111 attachment part, 68
~6d... Lead wire, 7... Matching part, 8
...Through hole. Patent applicant Matsushita Electric Industrial Co., Ltd. Figure 2 Figure 3 6d

Claims (1)

【特許請求の範囲】[Claims] 複数のレーザビームを個々に変調するための電極部を有
する超音波トランスジューサを設けた音響光学媒体と、
第１の面で、前記超音波トランスジューサの電極部で半
田付けされ、スルーホールをもって第２の面と接続され
、かつ前記第２の面でリード線と接続するようにしたフ
ィルム状のプリント配線板とからなることを特徴とする
多チャンネル光変調素子。an acousto-optic medium provided with an ultrasonic transducer having an electrode portion for individually modulating a plurality of laser beams;
A film-like printed wiring board having a first surface soldered to the electrode portion of the ultrasonic transducer, connected to a second surface through a through hole, and connected to a lead wire on the second surface. A multi-channel optical modulation device comprising:
JP22843688A 1988-09-14 1988-09-14 Multichannel optical modulating element Pending JPH0277720A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22843688A JPH0277720A (en) 1988-09-14 1988-09-14 Multichannel optical modulating element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22843688A JPH0277720A (en) 1988-09-14 1988-09-14 Multichannel optical modulating element

Publications (1)

Publication Number Publication Date
JPH0277720A true JPH0277720A (en) 1990-03-16

Family

ID=16876460

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22843688A Pending JPH0277720A (en) 1988-09-14 1988-09-14 Multichannel optical modulating element

Country Status (1)

Country Link
JP (1) JPH0277720A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03243273A (en) * 1990-02-20 1991-10-30 Matsushita Electric Ind Co Ltd Power source device
US5090626A (en) * 1988-06-06 1992-02-25 Industrieelektronik Dr-Ing Walter Klaschika Gmbh & Co. Apparatus for producing a very thin mist of power and controls for producing thin mist of power
FR2708381A1 (en) * 1993-07-27 1995-02-03 Thomson Csf Multi-channel Bragg cell equipped with connection means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5090626A (en) * 1988-06-06 1992-02-25 Industrieelektronik Dr-Ing Walter Klaschika Gmbh & Co. Apparatus for producing a very thin mist of power and controls for producing thin mist of power
JPH03243273A (en) * 1990-02-20 1991-10-30 Matsushita Electric Ind Co Ltd Power source device
FR2708381A1 (en) * 1993-07-27 1995-02-03 Thomson Csf Multi-channel Bragg cell equipped with connection means

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