IS11 – Numerical Investigation of the Performance of OAM-Mode Shifting Recirculating Delay Loop Under the Effect of Mode Shifter Displacement
We investigate the effect of OAM mode shifter displacement on the performance of the OAM-mode shifting recirculating delay loop by simulating the beam propagation using Kirchhoff-Fresnel diffraction. Simulation results indicate that 20 delayed replicas may be obtained with >10 dB signal-to-crosstalk ratio (SCR) if alignment is perfect and ℓshift=+1
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