METHOD AND APPARATUS FOR PROCESSING AND MEASURING PHOTONIC QUBIT SIGNALS

    公开(公告)号:US20230252333A1

    公开(公告)日:2023-08-10

    申请号:US18105080

    申请日:2023-02-02

    CPC classification number: G06N10/40

    Abstract: An apparatus for processing a photonic qubit signal includes a first optical unit to receive and transmit a time-modulated signal divided into two sections distinguished with respect to time and correspond to |0 and |1 states of single-photon qubit information; a second optical unit to form a first path-signal pattern by distributing the time-modulated signal into two spatial paths; a third optical unit to form a second path-signal pattern from the first path-signal pattern by inducing a relative delay and controlling a phase difference between signals on the two spatial paths; a fourth optical unit to form a third path-signal pattern through optical interference of the second path-signal pattern; and a fifth optical unit to control a phase difference between signals on the two spatial paths and form a fourth path-signal pattern through optical interference of the third path-signal pattern.

    OPTICAL WAVEGUIDE AND OPTICAL DEVICE BASED ON THE SAME
    6.
    发明申请
    OPTICAL WAVEGUIDE AND OPTICAL DEVICE BASED ON THE SAME 有权
    光波导和光学器件基于此

    公开(公告)号:US20150192803A1

    公开(公告)日:2015-07-09

    申请号:US14590296

    申请日:2015-01-06

    Abstract: Disclosed is a technology related to an optical waveguide which is insensitive to an ambient temperature and is capable of adjusting a wavelength error due to a manufacturing processing deviation. The optical waveguide includes: a clad layer positioned on a substrate; a core layer positioned between the substrate and the clad layer, and including patterns positioned in a first region and a second region; and a wavelength adjusting unit positioned in the first region between the substrate and the clad layer, and configured to adjust a wavelength of an optical signal propagated through patterns passing through the first region based on received electric energy, in which the clad layer includes a material having a Thermo-Optic Coefficient (TOC) with an opposite sign to that of a material included in the core layer.

    Abstract translation: 公开了与光波导相关的技术,其对环境温度不敏感,并且能够由于制造处理偏差而调节波长误差。 光波导包括:位于基板上的覆层; 位于所述基板和所述包覆层之间的芯层,并且包括位于第一区域和第二区域中的图案; 以及波长调整单元,其位于所述基板和所述包层之间的所述第一区域中,并且被配置为基于接收的电能来调整通过穿过所述第一区域的图案传播的光信号的波长,其中所述包层包括材料 具有与芯层中包含的材料具有相反符号的热光系数(TOC)。

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