A strain sensor based on in-line fiber Mach-Zehnder interferometer in twin-core photonic crystal fiber

Khurram Karim Qureshi, Zhengyong Liu, Hwa Yaw Tam, M. Fahad Zia

Research output: Journal article publicationJournal articleAcademic researchpeer-review

46 Citations (Scopus)


We experimentally demonstrate a strain sensor realized using a twin-core photonic crystal fiber (PCF). The strain sensor element consists of a 10 cm long in-fiber Mach-Zehnder interferometer consisting of twin-core PCF. The output spectra of the sensing element is measured and analyzed under various strain levels. The sensitivity of the strain measurement of -0.31 pm/με is achieved within a range from 0 to 4000 με. The effect of temperature is also analyzed.
Original languageEnglish
Pages (from-to)68-70
Number of pages3
JournalOptics Communications
Publication statusPublished - 5 Aug 2013


  • Mach-Zehnder interferometer
  • Optical fiber sensor
  • Strain sensor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

Cite this