Abstract: Optical sensor systems based on interferometric or resonant effects have been proven to be both feasible and accurate in optical measurement technique. New developments use all-fiber set-ups, as in the all-fiber Brillouin ring-laser gyroscope. The passive components discussed here are resonator couplers and 3 $MUL 3 symmetrical couplers required for a ring resonator sensor system. The miniaturization of passive components is of special interest for sensor applications. !6
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机译：摘要：已经证明基于干涉或共振效应的光学传感器系统在光学测量技术中既可行又准确。新的发展使用全光纤设置，例如全光纤布里渊环形激光陀螺仪。此处讨论的无源组件是环形谐振器传感器系统所需的谐振器耦合器和3个$ MUL 3个对称耦合器。无源组件的小型化对于传感器应用特别重要。 ！6
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