会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明公开
    • Electro-optical single-sideband modulator
    • Elektro-optischer Einseitenbandmodulator
    • EP2600189A1
    • 2013-06-05
    • EP12195161.0
    • 2012-11-30
    • Selex Sistemi Integrati S.p.A.
    • Dispenza, MassimilianoSecchi, AlbertoRicci, MassimoCasagrande, StefanoEvangelisti, AndreaDella Rovere, Fabio
    • G02F1/313
    • H04B10/501G02F1/0356G02F1/3134G02F2201/05H04B10/5165
    • An electro-optical single-sideband modulator (1) comprising:
      • an electro-optical substrate (2) ;
      • a bimodal optical waveguide structure (3) formed in the substrate (2) to support different optical modes having associated optical frequencies (ω S , ω A ) and optical propagation constants (β S , β A ) and comprising an optical input (IN) to receive an input optical carrier signal having an optical frequency (ω S ), and a pair of optical outputs (OUT1, OUT2) to output corresponding SSB modulated optical signals, each having an optical frequency spectrum with a single side lobe; and
      • an electrode structure (4) formed on the substrate (2) to receive an input electrical modulating signal having an associated electrical frequency (Ω) and electrical propagation constant (β Ω ), and to responsively apply an electrical field to the bimodal optical waveguide structure;
      wherein the bimodal optical waveguide structure (3) and the electrode structure (4) are so formed that the optical propagation constants (β S , β A ) of the optical modes and the electrical propagation constant (β Ω ) of the electrical modulating signal meet a Phase Matching condition, according to which the optical propagation constant (β A ) of a first one of the optical modes is equal to the sum of the optical propagation constant (β S ) of a second one of the optical modes and the electrical propagation constant (β Ω ) of the electrical modulating signal, so resulting in the energy of the first optical mode being transferred at least partially to the second optical mode, and, as a consequence, in the optical frequency (ω A ) of the second optical mode being equal to the optical frequency (ω S ) of the first optical mode up-shifted of the electrical frequency (Ω) of the electrical modulating signal.
    • 一种电光单边带调制器(1),包括:电光基板(2); (2)中形成的双峰光波导结构(3),以支持具有相关光学频率(ÉS,ÉA)和光传播常数(²S²A)的不同光模,并包括光输入( IN)以接收具有光频率(ÉS)的输入光载波信号和一对光输出(OUT1,OUT2),以输出相应的SSB调制光信号,每个具有单个旁瓣的光频谱; 以及形成在所述基板(2)上的电极结构(4),以接收具有相关联的电频率(©)和电传播常数(²)的输入电调制信号,并且响应地将电场应用于所述双峰 光波导结构; 其中双模光波导结构(3)和电极结构(4)被形成为使得光学模式的光学传播常数(2S,²A)和电调制信号的电传播常数(²)满足 相位匹配条件,根据该相位匹配条件,第一光模的光传播常数(²A)等于第二光模的光传播常数(²S)和电传播 电调制信号的常数(²),从而导致第一光学模式的能量至少部分地被传输到第二光学模式,并且因此在第二光学模式的光学频率(ÉA)中 模式等于电调制信号的电频(©)上移的第一光学模式的光频率(ÉS)。