Observation and comparison of multiwavelength generation erbium doped fibre ring laser utilising photonic crystal fibre with zero dispersion at 1040 nm and 1550 nm

Abstract

We conducted an experiment to demonstrate the generation of multiwavelength by incorporating fibre Bragg gratings (FBGs) and photonic crystal fibre (PCF) which has zero dispersion of 1040 nm and 1550 nm in erbium doped fibre ring laser (EDFRL). The multiwavelength was generated at gain bandwidth EDFRL setup. The results showed a good agreement of less than 0.03% of peaks wavelength generation based on both experimental set-up. The setup also share good repeatability of peaks wavelength generation of 0.01 nm and power deviation of 0.15 dBm. Nevertheless, experimental set-up with PCF of ZDW at 1550 has generated multi wavelength phenomenon by 30% effectively compared to PCF with ZDW at 1040 nm by 30% effectively. The results produced an impactful finding whereby the multiwavelength were clearly observed.