Abstract
We propose a highly birefringent and dispersion compensating
photonic crystal fiber based on a double line defect core. Using a finite
element method (FEM) with a perfectly matched layer (PML), it is
demonstrated that it is possible to obtain broadband large negative
dispersion of about -400 to -427 ps/(nm.km) covering all optical
communication bands (from O to U band) and to achieve the dispersion
coefficient of -425 ps/(nm.km) at 1.55μm. In addition, the highest
birefringence of the proposed PCF at 1.55 μm is 1.92 x
10-2 and the value of birefringence from the wavelength of
1.26 to 1.8 μm (covering O to U bands) is about 1.8 x
10-2 to 1.92 x 10-2. It is confirmed that from
the simulation results, the confinement loss of the proposed PCF is always
less than 10-3 dB/km at 1.55 μm with seven fiber rings of
air holes in the cladding.
© 2016 Optical Society of Korea
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