Research on sensor based on grapefruit microstructure fiber using lateral offset splicing

摘要

In this work, we analyze the classification, characteristics, and applications of photonic crystal fibers, and measure the sensing character of this device fabricated by lateral offset splicing a piece of grapefruit microstructure fiber with single mode fiber. The effective mode analysis software COMSOL is used to analyze the transmission modes in the grapefruit fiber, and the effective mode transmission index is measured. At the same time, the interference principle of the whole experiment is analyzed. With press and temperature changes, the sensitivity of the device was shown as 0.0078nm℃ and 0.0021nm/με.