Characterization of miniature fiber-optic Fabry-Perot interferometric sensors based on hollow silica tube

Abstract

A miniature fiber-optic Fabry-Perot interferometer (MOFPI) fabricated by splicing a hollow silica tube (HST) with inner diameter of 4 m to the end of a single-mode fiber is investigated and experimentally demonstrated. The theoretical relationship between the free spectrum range and the length of HST is verified by fabricating several MOFPIs with different lengths. We characterize the MOFPIs for temperature, liquid refractive index, and strain. Experimental results show that the sensitivities of the temperature, liquid refractive index, and strain are 16.42 pm/℃,-118.56 dB/RIU, and 1.21 pm/, respectively.

Modeling of all-optical even and odd parity generator circuits using metal-insulator-metal plasmonic waveguides

“…Hence, by adjoining the two DCs using two linear MIM waveguides, a design of MZI has been designed within the footprints of (16.24) m. Although interferometric circuit using Fabry-Perot interferometer is also used in various applications, the need of too many sources will lead to an increase in the cost and complexity of devices [18]. One of the arms of MZI is filled with an active material.…”