Skip to main content
Article thumbnail
Location of Repository

Edge Based Fiber Bragg Grating Interrogator

By Deepa Shrivastava, Randhir Bhatngar, Asha Kumar, Umesh Tiwari, S.C. Jain and Pawan Kapur


Fiber Bragg Grating (FBG) interrogation system based on spectral edge characteristics of Chirped Fiber Bragg Grating (CFBG) is reported to measure temperature of hot water bath. We use in-house fabricated FBG and CFBG as an edge filter in developing FBG interrogator. The CFBG transmission profile at rising and falling edge varies linearly with wavelength. The Bragg wavelength of FBG as a function of temperature forms the basis of temperature measurement. The ratio of optical intensity of Bragg wavelength due to edge slope of CFBG and intensity of the Bragg wavelength vs. temperature of water bath observed is linear. Using the slope of linear curve, the temperature measurement resolution of 0.30C with temperature range of 300C was achieved

Topics: Photonics Instrumentation
Year: 2012
OAI identifier:
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • (external link)
  • (external link)
  • Suggested articles

    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.