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    • 31. 发明授权
    • Optical intensity determination unit, method of forming the same, and optical A/D converter
    • 光强度确定单元,其形成方法和光学A / D转换器
    • US09091593B2
    • 2015-07-28
    • US13816160
    • 2011-04-19
    • Kenji Sato
    • Kenji Sato
    • G02F1/035G01J1/04H04B10/079G02F7/00
    • G01J1/0459G02F7/00H04B10/07955
    • An optical intensity determination unit includes: an optical input port; an optical output port; an optical resonator provided between the optical input port and the optical output port; a first light receiving element for converting at least a part of an optical signal output from a first output port of the optical resonator into an electric signal; a second light receiving element for converting at least a part of an optical signal output from a second output port of the optical resonator into an electric signal; a comparing circuit for determining magnitudes of the electric signals output from the first light receiving element and the second light receiving element to output a digital signal; and an optical branching circuit for branching light output from the second output port of the optical resonator into the optical output port and the second light receiving element. An optical intensity phase conversion unit for modulating an optical phase according to intensity of input light is provided in a part of a waveguide in the optical resonator.
    • 光强决定单元包括:光输入端口; 光输出端口; 设置在光输入端口和光输出端口之间的光谐振器; 第一光接收元件,用于将从光谐振器的第一输出端口输出的光信号的至少一部分转换为电信号; 第二光接收元件,用于将从光谐振器的第二输出端口输出的光信号的至少一部分转换为电信号; 比较电路,用于确定从第一光接收元件和第二光接收元件输出的电信号的幅度以输出数字信号; 以及用于将从光谐振器的第二输出端口输出的光分支到光输出端口和第二光接收元件的光分支电路。 在光谐振器的波导的一部分中设置有用于根据输入光的强度来调制光学相位的光强度相位转换单元。