Research on the sensing characteristics of photonic crystal fibers

It is well known that PCFs, compared with traditional fibers, have many special characteristics. Because of these, PCFs have been used in sensors. Based on the principles of traditional fiber sensors, this paper analyzes the probability of applications of PCFs in gas or liquid sensors. Due to the multi-hole properties of the PCFs, we can make some gas or liquid sensors by putting different gases or liquids into its air-hole. In this paper, the sensitivity of PCF sensors was simulated by the multipole method. By changing the core radius of PCFs or the gas fraction in the hole of PCFs, we can improve their sensitivity. Due to the superiority in their configuration, the research on PCF sensing characteristics will surely promote the development and application of the new-type sensors and other photoclectron devices.