Proposal of external modulation scheme for fiber-optic correlation-domain distributed sensing

Kohei Noda, Giwoon Han, Heeyoung Lee, Yosuke Mizuno, Kentaro Nakamura

研究成果: Article査読

8 被引用数 (Scopus)

抄録

All the previous configurations of optical correlation-domain reflectometry (OCDR) have been based on the direct modulation of laser driving current. However, some lasers are not designed for high-speed large-amplitude modulation, and the modulation amplitude and frequency are mutually dependent. In this work, to mitigate these drawbacks, we propose an external modulation scheme for OCDR. After confirming its basic operation, we show that a non-specially designed laser can be employed. We also clarify that the interdependence of the modulation amplitude and frequency is negligibly small in this scheme, which is not the case for the conventional direct modulation scheme.

本文言語English
論文番号022005
ジャーナルApplied Physics Express
12
2
DOI
出版ステータスPublished - 2019 2
外部発表はい

ASJC Scopus subject areas

  • 工学(全般)
  • 物理学および天文学(全般)

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