Study on the Microstructure of a Photonic Crystal Fiber using the Elasto-Optical Effect

Abstract

Photonic crystal fibers are characterized by their periodic structure with dimensions in the nanometer to micrometer range, which gives them the potential to be applied in various technical areas. In this work, we study the microstructure of a hexagonal photonic crystal fiber through a macroscopic localized compression test and measurements of relative intensity changes of a transmitted signal in the photonic crystal fiber. Our experimental study was carried out by controlling the orientation of the localized compression respective to the cross-section microstructure of the photonic crystal fiber. To complete the study, we developed a theoretical model based on the elasto-optic effect, and the numerical solution obtained with the model was compared with the experimental results. With both experimental and theoretical results, we obtained a causal correlation between the loss of relative intensity of the signal traveling through the hexagonal photonic crystal fiber and the orientation (respective to the fiber plane) of a localized compression on photonic crystal fiber. In this way, we can explore the cross-section microstructure of a photonic crystal fiber and its orientation in a device with a macroscopic compression test.

New Design of 2D Photonic Crystal Hydrostatic Pressure Sensor based on F.E.M Method used for Sensing Applications

“…The sensor is a device that can detect and respond to some different inputs from the physical environment [21].Optical sensors (OSs) are very important because of the advantage over electronic sensors. They can be designed using optical fiber [22,23], photonic crystal fiber [24] and photonic crystals [25][26][27][28][29].The search domains of PBG structures can be used for various applications. Their application as a sensor is a new area of research that seems to apply to nano electromechanical systems (NEMS) [30].In addition, within a few years, candidates such as optical sensors based on microstructures have become very promising and attractive for photonic integrated circuits, because they meet the current demand for lightness, ultra-compact size, their high sensitivity, their immunity to electromagnetic interference, from their rapid response speed to low power and precise detection of different substances [31].These candidates have been effectively used in wide range applications to detect various parameters such as: bio-analytes [32], electric fields [33], glucose concentration [34], cancer cells [35], seawater salinity [36], blood components [37], chemical gas [38], DNA molecules [39], temperature [40] and pressure [41] and in many other applications.…”