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Abstract
This article deals with a study of proposed PCF in which a fiber core is surrounded by square shaped air holes arranged in circular rings in the cladding region. Parametric variation of proposed fiber is measured by varying the square air hole number in the core region, length of square air hole and also for hole packing density ratio (HPD) variation from visible to near-infrared (NIR) wavelength range. The parametric analysis shows that zero dispersion wavelength (ZDW) varies for all possible parametric variations mentioned above. The maximum negative dispersion value of −810 ps/nm/Km is obtained at 1.55 μm for 3 square air holes in fiber core while minimum confinement loss value is 1.23 × 10-5dB/m at the same wavelength. Besides this, the birefringence and nonlinear coefficient values were also found high as 3.6 × 10-3 and 75 W-1 km-1, respectively at 1.55 μm. Hence, the proposed PCF can be better used in four wave mixing, solitons generation, polarization maintaining fiber and optical sensor applications.
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