Super-simplified optical correlation-domain reflectometry

Takaki Kiyozumi, Tomoya Miyamae, Kohei Noda, Heeyoung Lee, Kentaro Nakamura, Yosuke Mizuno

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Optical correlation-domain reflectometry (OCDR), which is known as one of the fiber-optic techniques for distributed reflectivity sensing, conventionally included an acousto-optic modulator, a reference path, and erbium-doped fiber amplifiers in its setup. In this work, by removing all of these components simultaneously, we develop a super-simplified configuration of OCDR, which consists of a light source and a photodetector only. We experimentally show that this system can still perform distributed reflectivity sensing with a moderate signal-to-noise ratio, which will boost the portability and cost efficiency of the OCDR technology.

Original languageEnglish
Article number078005
JournalJapanese Journal of Applied Physics
Issue number7
Publication statusPublished - 2022 Jul


  • correlation domain
  • distributed sensing
  • optical fiber sensors
  • optical reflectometry
  • simplified system

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)


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