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    • 8. 发明申请
    • Light intensity detector
    • 光强度检测器
    • US20060289729A1
    • 2006-12-28
    • US11230518
    • 2005-09-21
    • Masaki IwamotoJun Ojima
    • Masaki IwamotoJun Ojima
    • H01J40/14
    • G01J1/04G01J1/0407G01J1/0429G01J1/047G01J1/0477G01J1/4257G02B27/283G02F1/2255
    • A polarization separating element such as a beam splitter receives a first light of a first polarization plane. The polarization separating element derives out of the first light a second light of a second polarization plane set perpendicular to the first polarization plane. A photoelectric element converts the second light into an electric signal. The intensity of the second light is in this manner detected. Since the second light is derived out of the first light, the phase of the second light is allowed to synchronize with the phase of the first light. The extinction ratio of the second light accurately reflects the extinction ratio of the first light. The detection of the intensity of the second light at the photoelectric element enables an accurate detection of the intensity of the first light.
    • 诸如分束器的偏振分离元件接收第一偏振面的第一光。 偏振分离元件从第一光源中导出垂直于第一偏振面设置的第二偏振面的第二光。 光电元件将第二光转换成电信号。 以这种方式检测第二光的强度。 由于第二光被从第一光中导出,所以允许第二光的相位与第一光的相位同步。 第二光的消光比准确地反映第一光的消光比。 在光电元件处的第二光的强度的检测能够精确地检测第一光的强度。
    • 10. 发明授权
    • Wavelength splitting element, method for manufacturing the same and optical module
    • 波长分离元件,制造方法和光学模块
    • US07943895B2
    • 2011-05-17
    • US11723355
    • 2007-03-19
    • Kazuyuki NakasendoMasaki IwamotoAyumu Kobayashi
    • Kazuyuki NakasendoMasaki IwamotoAyumu Kobayashi
    • H01L31/0232G02B27/10B32B37/02
    • G02B27/1006G02B5/26G02B6/29362G02B6/29367G02B6/4246G02B27/1073G02B27/14G02B27/141
    • A wavelength splitting element for splitting a multiplexed light beam into separate wavelength bands and emitting the beams from separate emission ports including a first filter for splitting the multiplexed light beam into light beams in wavelength band λ1, which passes in a first direction, and wavelength bands λ2 and λ3, which reflects; a second filter, for splitting the reflected light into light beams in wavelength band λ3, which passes in a second direction, and wavelength band λ2, which reflects in a third direction; and a third filter, for passing the light beam in the wavelength band λ2. The first filter passes the light beam in the wavelength band λ2 reflected by the second filter and incident to the first filter again based on an incident angle, and the third filter passes only the light beam in the wavelength band λ2 that the first filter passes in the third direction.
    • 一种波长分离元件,用于将多路复用的光束分离成分离的波长带并且从分离的发射端口发射波束,该发射端口包括用于将多路复用的光束分解为沿第一方向通过的波长带λ1的光束的第一滤波器和波长带 λ2和λ3反映; 第二滤光器,用于将反射光分解成在第二方向上通过的波长带λ3中的光束和沿第三方向反射的波长带λ2; 以及用于使光束在波长带λ2中通过的第三滤光器。 第一滤光器通过由第二滤光器反射的波长带λ2中的光束,并且基于入射角再次入射到第一滤光器,并且第三滤光器仅通过第一滤光器通过的波长带λ2中的光束 第三个方向。