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
    • 3. 发明授权
    • Polarization-independent reflectometry and polarization-independent reflectometer
    • 偏振无关反射计和偏振无关反射计
    • US06476919B1
    • 2002-11-05
    • US09404810
    • 1999-09-24
    • Tohru MoriKazumasa TakadaMasaharu Horiguchi
    • Tohru MoriKazumasa TakadaMasaharu Horiguchi
    • G01B902
    • G01M11/3181
    • Emitted light from a light source 1 is separated into two parts through an optical fiber coupler 2, one is entered in a measured optical module 3 as measurement light, and the other is given a group delay by means of an optical fiber delay line 5, a reflector 25, etc., as local light signal, then the local light signal is combined with reflected light signal from the measured optical module 3 through an optical fiber coupler 21 and the reflected light signal and the local light signal are caused to interfere with each other. A polarization controller 100 comprising a polarizer and a polarization rotation device for arbitrarily rotating the polarization state 0 degrees and 90 degrees at the time is used to generate beat signals at the polarization rotation angles, and the sum of the intensities of the beat signals is found, making it possible to measure the light power of the reflected light signal regardless of the polarization state of the local light signal or reflected light signal.
    • 来自光源1的发光通过光纤耦合器2分成两部分,一个作为测量光进入测量的光学模块3,另一个通过光纤延迟线5被给予组延迟, 反射器25等作为本地光信号,然后通过光纤耦合器21将本地光信号与来自测量的光学模块3的反射光信号组合,并且使反射光信号和局部光信号与 彼此。 使用包括偏振器的偏振控制器100和用于随时旋转0度和90度的偏振状态的偏振旋转装置,以产生偏振旋转角度的拍子信号,并且找到拍子信号的强度之和 ,使得可以测量反射光信号的光功率,而不管本地光信号或反射光信号的偏振状态如何。