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    • 4. 发明授权
    • Super flat optical frequency comb signal generator
    • 超平光梳频信号发生器
    • US08023775B2
    • 2011-09-20
    • US12282638
    • 2006-09-22
    • Takahide SakamotoTetsuya KawanishiMasahiro TsuchiyaMasayuki Izutsu
    • Takahide SakamotoTetsuya KawanishiMasahiro TsuchiyaMasayuki Izutsu
    • G02F1/225G02F1/01
    • G02F1/2255G02F2001/212G02F2203/56
    • An optical frequency COM generator generating an optical frequency COM having flat spectrum characteristics using a single modulator. The optical frequency COM generator has a drive signal system (11) and a bias signal system (14) which drive a first drive signal (9), a second drive signal (10) and bias signals (12, 13) to satisfy the following expression (I). ΔA+Δθ=π/2 (I). (where, ΔA and Δθ are defined as ΔA≡(A1−A2)/2 and Δθ≡(θ1−θ2)/2, respectively, A1 and A2 represent the amplitudes of the first and second drive signals when they are inputted to the electrodes of the first and second drive signals, respectively, and θ1 and θ2 represent the phases of bias voltages applied to first and second waveguides, respectively.)
    • 使用单个调制器产生具有平坦频谱特性的光频率COM的光学频率COM发生器。 光频COM发生器具有驱动信号系统(11)和驱动第一驱动信号(9),第二驱动信号(10)和偏置信号(12,13)的偏置信号系统(14)以满足以下 表达式(I)。 &Dgr; A +&Dgr;&thetas; =&pgr; / 2(I)。 (其中,&Dgr; A和&Dgr;&thetas;分别定义为&Dgr;A≡(A1-A2)/ 2和&Dgr;&thetas;≡(&thetas; 1-&thetas; 2)/ 2,A1和A2分别表示 第一和第二驱动信号分别在第一和第二驱动信号的电极输入时的振幅和第一和第二驱动信号的电平分别与第一和第二波导的偏置电压的相位相对应。