A new type broadband single-polarization single-mode photonic crystal fiber based on index-matching coupling is proposed by using the full vector finite-element method. Polarization-dependent loss of the proposed fiber is larger than 24.08 dB/m within a wavelength range from 1.25 to 1.65 , and the single-polarization single-mode operation bandwidth reaches 400 nm.
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Zhang et al. (2011) studied this question.
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