A new structure of single-polarization single-mode (SPSM) photonic crystal fiber (PCF) is proposed and analyzed by using a full-vector finite element method with anisotropic perfectly matched layers. From the numerical results it is confirmed that the proposed fiber is low-loss SPSM-PCF within the wavelengths ranging from 1.48 to 1.6 μm, where only the slow-axis mode exists and the confinement loss is less than 0.1 dB/km.
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Saitoh et al. (2003) studied this question.
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