SEMICONDUCTOR OPTICAL MODULATOR AND OPTICAL COMMUNICATION MODULE

PROBLEM TO BE SOLVED: To prevent occurrence of removal of an electrode and cracks of the electrode in the electrode to which an electric signal for driving a semiconductor optical modulator is applied.SOLUTION: A semiconductor optical modulator 1 modulating a laser beam according to an electric sign...

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Bibliographische Detailangaben
Hauptverfasser:	YAMAGUCHI YORIYOSHI, YAMAUCHI TOSHIYA, WASHINO TAKASHI, KOSUGI NORIHITO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PHYSICS TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To prevent occurrence of removal of an electrode and cracks of the electrode in the electrode to which an electric signal for driving a semiconductor optical modulator is applied.SOLUTION: A semiconductor optical modulator 1 modulating a laser beam according to an electric signal comprises an electrode 300 which is provided above an embedded layer and an active layer of at least a part of the semiconductor optical modulator 1 and to which an electric signal is transmitted. In the electrode 300, a step structure is provided on at least a part of a periphery of a bonding pad electrode part 11 connected to a bonding wire 8 for transmitting the electric signal.SELECTED DRAWING: Figure 1 【課題】半導体光変調器を駆動するための電気信号が印加される電極において、電極剥がれと電極割れが発生することを防止する。【解決手段】電気信号に従ってレーザー光を変調する半導体光変調器１は、半導体光変調器１の少なくとも一部の埋込層と活性層の上方に設けられた、電気信号が伝送される電極３００を備え、電極３００のうち、電気信号を伝送するボンディングワイヤ８と接続されるボンディングパッド電極部１１の周縁部の少なくとも一部に段差構造を設けた。【選択図】図１