제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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COMMOM MODE COMPENSATION IN FIBER OPTIC INTERFEROMETRIC SENSOR WITH LESS COHERENT LIGHT

  • Park, Kyung-Sup (Department of Control and Instrumentation Engineering, Univ. of Ulsan, Ulsan)
  • Published : 1990.10.01
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Abstract

Sorce noise effect in 1.5 Mach-Zehnder (MZ) interferometer is analyzed. It is shown numerically that with fine adjustments to the feedback gain and initial phase biases, the operating point of the interferometer to achives common mode compensation can be made to lie in a region where the measurand sensitivity is greater than it would be in a conventional Mach-Zehnder interferometer even if the source is less coherent.

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