Optical modulator module, integrated circuit for driving optical modulator, and method for modulating optical signal

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United States of America Patent

PATENT NO 9217883
APP PUB NO 20140169723A1
SERIAL NO

14234853

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Abstract

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Waveguide-type optical phase modulator regions of a linear accelerator-type column electrode structure MZ optical modulator are arranged on a semiconductor optical waveguide. A transmission line of an integrated circuit receives a clock signal through a buffer circuit disposed on an input side. Clock terminators are connected between an end of the transmission line and clock terminator power supply electrodes (VCa, VCb). Individual driving circuits receive the clock signal from different positions of the transmission line. An i (1≦i≦m, i is an integer)-th individual driving circuit counted from the input side outputs a signal obtained by amplifying a digital input signal in synchronization with the clock signal to an i-th waveguide-type optical phase modulator region.

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Patent Owner(s)

Patent OwnerAddress
NEC CORPORATIONTOKYO 108-8001

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kato, Tomoaki Tokyo, JP 123 1068

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