Characterization of transmission in a multiple core-offset Mach-Zehnder interferometer filter using single-mode fiber

Abstract

The Mach-Zehnder interferometer (MZI produces light interference due to the phase differences between the two paths. In this experiment, a 3-section MZI filter made of SMF-28 fiber with core-offset technique, which manually displaces the centers of the fiber core by 30 m was used with a 10dBm light source emitting in the 1480-1600 nm range. The results revealed intermodal energy interference between the core and the cladding and six spacing notches for sensing purposes.