发明名称 DISTRIBUTED LOW-PASS FILTER TRANSMISSION LINE CIRCUIT APPARATUS
摘要 <p><P>PROBLEM TO BE SOLVED: To provide an optical modulator that is high in efficiency and accuracy by improving an electric circuit for driving the optical modulator. <P>SOLUTION: The distributed low-pass filter transmission line circuit apparatus comprises: input and output microstrip lines (20, 24), which have a length of less than a quarter of a target wavelength corresponding to a target operating frequency, respectively, which exhibits characteristic impedance exceeding a target signal source impedance, and which exhibits a series inductance which is the target operating frequency; and an electro-absorption optical modulator (12) comprising a signal electrode (44), the length of which is less than a quarter of the target wavelength, the characteristic impedance of which is less than the target signal source impedance, and which exhibits a by-pass capacitance that is the target operating frequency. They are incorporated as the distributed low-pass filter transmission line circuit (10), which exhibits characteristic impedance that is substantially matched with the target signal source impedance at the target operating frequency. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p>
申请公布号 JP2005062855(A) 申请公布日期 2005.03.10
申请号 JP20040220019 申请日期 2004.07.28
申请人 AGILENT TECHNOL INC 发明人 TANBAKUCHI HASSAN
分类号 G02F1/015;G02F1/01;G02F1/017;G02F1/03;(IPC1-7):G02F1/015 主分类号 G02F1/015
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