Abstract
In this paper, novel designs of single and multiple sectioned passive
polarization rotators (PRs) based on silica photonic crystal fiber (PCF) are
studied and analyzed. The suggested PCF PRs have an L-shaped core region
which offers nearly 100% polarization conversion ratio. The simulation
results are obtained using the full vectorial finite difference method along
with the full vectorial finite difference beam propagation method. The
influence of the different waveguide parameters and operating wavelength on
the PRs performances are investigated in order to obtain optimum PR designs.
The single and multiple sectioned PCF PRs offer nearly 100% polarization
conversion ratio with device lengths of 1743 μm and 1265 μm, respectively.
© 2011 IEEE
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