Abstract
In this paper, application of a Hollow Core Photonic Crystal Fiber (HC-PCF) as a micro-strain sensor has been demonstrated. Two different designs of HC-PCF with different core diameters (large core PCF and small core PCF) have been investigated for different strain levels ranging from 0 μɛ to 2000 μɛ at the wavelength, 1550 nm. High strain sensitivities of 3.71 pm/μɛ and 2.3 pm/μɛ have been achieved for the large core PCF and small core PCF, respectively. Also, due to the special air-hole structure of HC-PCF, the sensitivity of strain measurement remains unaffected of the changes in Surrounding Refractive Index (SRI)..
Keywords
Hollow Core Photonic Crystal Fiber(HC-PCF), Strain sensor, SRI.
Citation
SHAILLY KHANNA, R. S. KALER, Index insensitive micro-strain sensor based on hollow core photonic crystal fiber, Optoelectronics and Advanced Materials - Rapid Communications, 10, 3-4, March-April 2016, pp.151-153 (2016).
Submitted at: March 18, 2015
Accepted at: April 5, 2016