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

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

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number022005
JournalApplied Physics Express
Volume12
Issue number2
DOIs
Publication statusPublished - 2019 Feb
Externally publishedYes

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Proposal of external modulation scheme for fiber-optic correlation-domain distributed sensing'. Together they form a unique fingerprint.

  • Cite this