JPH02248923A - Multichannel optical modulating element - Google Patents
Multichannel optical modulating elementInfo
- Publication number
- JPH02248923A JPH02248923A JP6966989A JP6966989A JPH02248923A JP H02248923 A JPH02248923 A JP H02248923A JP 6966989 A JP6966989 A JP 6966989A JP 6966989 A JP6966989 A JP 6966989A JP H02248923 A JPH02248923 A JP H02248923A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electrodes
- acousto
- optic medium
- connected electrically
- 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
Links
- 230000003287 optical effect Effects 0.000 title abstract description 5
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 230000008033 biological extinction Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は複数のレーザビームを音響光学効果を利用して
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 Industrial Application The present invention relates to a multichannel optical modulation element that modulates a plurality of laser beams using an acousto-optic effect.
従来の技術
１は音響光学媒体、２は超音波トランスジューサであり
、３１〜３４は各チャンネルの電極である。Conventional technology 1 is an acousto-optic medium, 2 is an ultrasonic transducer, and 31 to 34 are electrodes for each channel.
発明が解決しようとする課題
このような従来の構成では、各チャンネルの電極へ高周
波信号を入力するリード線間で浮遊容量による高周波カ
ップリングを生じるため、各チャンネル間クロストーク
が悪くなるという課題があった。Problems to be Solved by the Invention In such a conventional configuration, high frequency coupling occurs due to stray capacitance between the lead wires that input high frequency signals to the electrodes of each channel, resulting in poor crosstalk between each channel. there were.
本発明はこのような課題を解決するもので、クロストー
クが小さく、消光比の良い多チャンネル光変調素子を得
ること金目的とするものである。The present invention is intended to solve these problems, and aims to provide a multi-channel optical modulation element with low crosstalk and a good extinction ratio.
課題を解決するための手段
この課題を解決するために本発明は、電極部を構成する
各チャンネルの電極間に、前記電極と平行に音響光学媒
体に、前記電極アース部と電気的に導通させた金属薄板
を差し込んだものである。Means for Solving the Problems In order to solve this problem, the present invention provides electrical conduction between the electrodes of each channel constituting the electrode section, with an acousto-optic medium parallel to the electrodes, and with the electrode ground section. This is a thin metal plate inserted.
作用
この構成により、電極部を構成する各チャンネルの電極
間に、前記電極と平行に前記音響光学媒体に差し込まれ
、前記電極アース部と電気的に導通させた金属薄板が、
各チャンネルの電極へ高周波信号を入力するリード線か
ら他のリード線へ高周波信号が漏れ込むのを妨げ、クロ
ストークの小さい、消光比の良い多チャンネル光変調素
子を得ることができることとなる。Effect: With this configuration, a thin metal plate is inserted into the acousto-optic medium in parallel with the electrodes between the electrodes of each channel constituting the electrode section, and is electrically connected to the electrode ground section.
This prevents high-frequency signals from leaking from the lead wires that input high-frequency signals to the electrodes of each channel to other lead wires, making it possible to obtain a multichannel optical modulation element with low crosstalk and a good extinction ratio.
実施例
る各チャンネルの電極間に、前記電極と平行に音響光学
媒体に差し込んだ前記電極アース部と電気的に導通させ
た金属薄板を設けることにより、クロストークを小さク
シ、消光比を良くすることができるという効果が得られ
る。By providing a thin metal plate between the electrodes of each channel in parallel with the electrode and electrically connected to the electrode ground portion inserted into the acousto-optic medium, crosstalk is reduced and the extinction ratio is improved. You can get the effect that you can.
は音響光学媒体、２は超音波トランスジユーサ、３１〜
３４は各チャンネルの電極であり、これらは従来と同一
のものである。４１〜４３は金属薄板である。ここで、
金属薄板４１〜４３には銅板など導電性に優れた金属を
使用し、導電性接着剤により電極アース部と電気的に導
通させると共に、音響光学媒体１に差し込むことにより
固定した。is an acousto-optic medium, 2 is an ultrasonic transducer, 31-
Reference numeral 34 indicates an electrode for each channel, which is the same as the conventional one. 41 to 43 are thin metal plates. here,
The thin metal plates 41 to 43 are made of a highly conductive metal such as a copper plate, are electrically connected to the electrode ground portion using a conductive adhesive, and are fixed by being inserted into the acousto-optic medium 1.
１友、前記金属薄板４１〜４３に熱伝導性の良い金属を
用いると、トランスジューサ部からの発熱により起こる
音響光学媒体１内の熱ひずみを抑えることができる。First, if a metal with good thermal conductivity is used for the thin metal plates 41 to 43, thermal strain within the acousto-optic medium 1 caused by heat generation from the transducer section can be suppressed.
発明の効果
以上のように本発明によれば、電極部を構成すンネル元
変調素子を示す構成図である。Effects of the Invention As described above, according to the present invention, it is a configuration diagram showing a tunnel source modulation element that constitutes an electrode section.
１・・・・・・音響光学媒体、２・・・・・・超音波ト
ランスジューサ、３１〜３４・・・・・・各チャンネル
の電極、４１〜４３・・・・・・金属薄板。DESCRIPTION OF SYMBOLS 1... Acousto-optic medium, 2... Ultrasonic transducer, 31-34... Electrodes for each channel, 41-43... Metal thin plate.
Claims (1)
超音波トランスジューサと、レーザビームを変調するた
めの電気信号を入力する電極部を有し、前記電極部を構
成する各チャンネルの電極間に、前記電極と平行に前記
音響光学媒体に差し込まれ、前記電極アース部と電気的
に導通させた金属薄板を有する多チャンネル光変調素子
。It has an acousto-optic medium, an ultrasonic transducer provided on one surface of the acousto-optic medium, and an electrode section into which an electric signal for modulating a laser beam is input, and between the electrodes of each channel constituting the electrode section. . A multi-channel light modulation element having a thin metal plate inserted into the acousto-optic medium parallel to the electrode and electrically connected to the electrode ground portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6966989A JPH02248923A (en) | 1989-03-22 | 1989-03-22 | Multichannel optical modulating element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6966989A JPH02248923A (en) | 1989-03-22 | 1989-03-22 | Multichannel optical modulating element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02248923A true JPH02248923A (en) | 1990-10-04 |
Family
ID=13409480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6966989A Pending JPH02248923A (en) | 1989-03-22 | 1989-03-22 | Multichannel optical modulating element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02248923A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11454837B2 (en) | 2019-11-22 | 2022-09-27 | Eagle Technology, Llc | AOM system with interface board and signal vias and related methods |
| US11662612B2 (en) | 2019-11-21 | 2023-05-30 | Eagle Technology, Llc | Acousto-optic modulator system and device with connections and related methods |
-
1989
- 1989-03-22 JP JP6966989A patent/JPH02248923A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11662612B2 (en) | 2019-11-21 | 2023-05-30 | Eagle Technology, Llc | Acousto-optic modulator system and device with connections and related methods |
| US11454837B2 (en) | 2019-11-22 | 2022-09-27 | Eagle Technology, Llc | AOM system with interface board and signal vias and related methods |
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