Boni Amin SM, Md. Mahbub Hossain, Md. Ekhlasur Rahman, Mehedi Hasan Mahasin and Shekhar Himadri
This article reviews the recent progress in optical sensors using photonic crystal fiber (PCF) technology, which is newly adopted beyond conventional optical fibers (OFs) due to their unique geometric structures. PCFs have some exceptional properties. It will focus the most conversant sensing application areas with their consistent parameters and perception. Numerous PCF sensors are available in day-to-day world. Researchers and technologists are working on PCFs with more than 15-20 application areas. In this article, sensing applications in physical and bio- chemical with their diverse types are reviewed recent times. Physical sensors as temperature, curvature, torsion, vibration, pressure, refractive index, evanescent; where the bio-chemical sensors as humidity, gas, pH, liquid etc. has been reviewed in this article. The review shows that, most physical sensing applications are varied with their different structures and parameters.
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