JPH043421U - - Google Patents
Info
- Publication number
- JPH043421U JPH043421U JP4374990U JP4374990U JPH043421U JP H043421 U JPH043421 U JP H043421U JP 4374990 U JP4374990 U JP 4374990U JP 4374990 U JP4374990 U JP 4374990U JP H043421 U JPH043421 U JP H043421U
- Authority
- JP
- Japan
- Prior art keywords
- optical
- branching
- optical waveguide
- voltage
- split
- 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 claims description 22
- 230000008878 coupling Effects 0.000 claims 4
- 238000010168 coupling process Methods 0.000 claims 4
- 238000005859 coupling reaction Methods 0.000 claims 4
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案に係る光強度変調器の一実施例
を示す構成平面図、第２図は本考案に係る光強度
変調器の他の実施例を示す構成平面図、第３図は
従来の光強度変調器を示す構成平面図である。
２５，２６…光導波路、２７…第３の光導波路
、３１，３２…変調用電極、３３，３４，３５，
３６…分岐制御用電極、Ｉ１，Ｉ２…分岐光。
FIG. 1 is a structural plan view showing one embodiment of a light intensity modulator according to the present invention, FIG. 2 is a structural plan view showing another embodiment of a light intensity modulator according to the present invention, and FIG. 3 is a conventional structure diagram. FIG. 2 is a configuration plan view showing a light intensity modulator of FIG. 25, 26... Optical waveguide, 27... Third optical waveguide, 31, 32... Modulation electrode, 33, 34, 35,
36... Branch control electrode, I 1 , I 2 ... Branch light.
Claims (1)
２つの光導波路上の変調用電極間に電圧を加えて
２つの分岐光に位相差を生じさせた後再び結合部
で結合し、前記電圧により光強度を制御する光導
波路形の光強度変調器において、 分岐部はその一部が近接する２つの光導波路と
、この２つの光導波路の近接する部分の上部にそ
れぞれ設けられた２つの分岐制御用電極とを備え
、２つの分岐制御用電極の間の電圧を制御するこ
とにより、結合部で２つの等しい光パワーが結合
するように構成したことを特徴とする光強度変調
器。 (2) 入射光を分岐部で２つに分岐し、分岐した
２つの光導波路上の変調用電極間に電圧を加えて
２つの分岐光に位相差を生じさせた後再び結合部
で結合し、前記電圧により光強度を制御する光導
波路形の光強度変調器において、 分岐光が通過する光導波路の一部にその一部が
近接して設けられた第３の光導波路と、前記光導
波路同士が近接する部分において第３の光導波路
上に設けられた分岐制御用電極と、分岐光が通過
する前記光導波路上に前記分岐制御電極と対向す
るように設けられた変調用電極とを備え、変調用
電極と分岐制御用電極の間に電圧を加えて分岐光
の一部を第３の光導波路に分岐することにより、
結合部で２つの等しい光パワーが結合するように
構成したことを特徴とする光強度変調器。[Claims for Utility Model Registration] (1) Incident light is split into two at a branching part, and a voltage is applied between modulation electrodes on the two split optical waveguides to create a phase difference between the two split lights. In an optical waveguide-type optical intensity modulator in which the optical waveguides are connected again at a coupling part and the optical intensity is controlled by the voltage, the branching part is a part of two optical waveguides that are close to each other, and a part of the branch part is a part of two optical waveguides that are close to each other. Two branch control electrodes are provided at the top of each part, and the voltage between the two branch control electrodes is controlled so that two equal optical powers are combined at the coupling part. A light intensity modulator featuring: (2) The incident light is split into two at the branching section, a voltage is applied between the modulation electrodes on the two branched optical waveguides to create a phase difference between the two branched lights, and then they are combined again at the coupling section. , an optical waveguide-type optical intensity modulator that controls optical intensity using the voltage, comprising: a third optical waveguide, a portion of which is provided close to a portion of the optical waveguide through which the branched light passes; and the optical waveguide. A branching control electrode provided on the third optical waveguide in a portion where the two are adjacent to each other, and a modulation electrode provided on the optical waveguide through which the branched light passes so as to face the branching control electrode. , by applying a voltage between the modulation electrode and the branching control electrode and branching a part of the branched light to the third optical waveguide,
An optical intensity modulator characterized in that it is configured such that two equal optical powers are combined at a coupling part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4374990U JPH043421U (en) | 1990-04-24 | 1990-04-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4374990U JPH043421U (en) | 1990-04-24 | 1990-04-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH043421U true JPH043421U (en) | 1992-01-13 |
Family
ID=31556427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4374990U Pending JPH043421U (en) | 1990-04-24 | 1990-04-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH043421U (en) |
-
1990
- 1990-04-24 JP JP4374990U patent/JPH043421U/ja active Pending
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