Crosstalk analysis in an optical network based on optical cross connects with different MZI techniques

This paper presents the crosstalk of three optical cross connects based on Mach–Zehnder Interferometer (MZI), MZI-semiconductor optical amplifier (SOA) and MZI-fiber Bragg gratings (FBG) techniques obtained at 4 × 10 Gbps with 0.1 nm channel spacing wavelength division multiplexing (WDM) transmission with 2 × 2 optical cross connects (OXC). It is found that the signal can be transmitted with least BER with MZI-FBG based OXC and the worst case is found with the MZI-SOA based OXC.