[15p-WL2_301-1~9] 3.7 Optical measurement, instrumentation, and sensor

2:30 PM - 2:45 PM JST(5:30 AM - 5:45 AM UTC)

[15p-WL2_301-5] Discriminative detection of adjacent reflection points in OCDR based on polarization state control

〇Yuto Sekine¹, Yuta Higa¹, Keisuke Motoda¹, Takaki Kiyozumi¹, Takahiro Ishimaru², Hiroshi Takahashi², Kunihiro Toge², Yosuke Mizuno¹ (1.YNU, 2.NTT)

Keywords:

optical fiber sensors,polarization,optical correlation-domain reflectometry

We experimentally demonstrate that, by exploiting the polarization dependence of the signal waveform in optical correlation-domain reflectometry (OCDR), closely spaced reflection points can be separately detected even when the spatial resolution is insufficient, through appropriate control of the polarization state.