Laser phase noise compensation in long-range OFDR by using an optical fiber delay loop

Bin Wang, Xinyu Fan*, Shuai Wang, Guangyao Yang, Qingwen Liu, Zuyuan He

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Citations (Scopus)

Abstract

We propose and experimentally demonstrate a novel technique to compensate the laser phase noise in long-range OFDR by using an optical fiber delay loop, which mainly consists of a delay fiber and a frequency shifter. The delay fiber is used to shorten the optical path difference between two arms of the interferometer, and the frequency shifter works as a counter for taking the number of lightwave circulated in the loop. The preliminary experiment shows a successful compensation effect, and a 10 cm spatial resolution over 30 km measurement range is realized by using this method.

Original languageEnglish
Pages (from-to)220-224
Number of pages5
JournalOptics Communications
Volume365
DOIs
Publication statusPublished - 15 Apr 2016
Externally publishedYes

Keywords

  • Frequency shifter
  • Optical fiber delay loop
  • Optical frequency domain reflectometry
  • Phase noise

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