OPTICAL MODULATOR

PROBLEM TO BE SOLVED: To provide an optical modulator in which the occurrence of a bias microjump phenomenon is prevented and the fluctuation in an instantaneous control voltage is made less. SOLUTION: The modulator is provided with a substrate 1 which is made of a material having an electrooptical...

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Bibliographische Detailangaben
Hauptverfasser:	JINRIKI TAKASHI, AKIZUKI KATSUYA, SUGAMATA TORU, YAMADA MANABU
Format:	Patent
Sprache:	eng
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 provide an optical modulator in which the occurrence of a bias microjump phenomenon is prevented and the fluctuation in an instantaneous control voltage is made less. SOLUTION: The modulator is provided with a substrate 1 which is made of a material having an electrooptical effect, optical waveguides 2 formed on the substrate and electrodes 5 and 6 which are formed on the substrate to modulate the strength of the light beams that pass through a portion of the substrate and are applied with a DC voltage. The electrodes are constituted of a signal electrode 5 and ground electrodes 6. Electrifying preventing treatment 7 is provided in the vicinity of the electrodes 6 and in the edge portions of the substrate 1.