Investigation of high birefringence and chromatic dispersion management in photonic crystal fibre with square air holes

The perspectives and trends of THz technology in material research for future communication - a comprehensive review

“…So, it is adapted to transmit broadband terahertz pulse that remain polarized. Other photonic crystal fibers with various shapes, such as square [187] and hexagon [188,189], have also attracted great attention.…”

Numerical Analysis of Transversely Porous Core PCF with Square Airhole Cladding

“…Generally, PCF is fabricated through Stack and Draw method in which silica capillaries are stressed down to PCF length and provide mechanical stability to the PCF structure. For square hole PCF fabrication, solgel method can be preferred [14]. An outer layer of 1 µm thickness used to absorb the unwanted scattering losses, is known as perfectly matched layer (PML).…”

A comprehensive study of large negative dispersion and highly nonlinear perforated core PCF: theoretical insight

“…Marcos et al in their article obtained a very high average negative dispersion for microstructure PCF [12]. In 2015, a research article admitted that PCF with square-shaped air holes in the core and cladding region can achieve large negative dispersion of −780 ps nm −1 km −1 at 1.0 μm while in the L band he obtained dispersion of −360 ps nm −1 km −1 [13]. But in this manuscript, the authors did not show any findings related to the nonlinear coefficient.…”

“…Marcos et al in their article obtained a very high average negative dispersion for microstructure PCF [9]. In 2015, a research article admitted that PCF with square-shaped air holes in the core and cladding region can achieve large negative dispersion of -780 ps/nm/km [10]. In 2019, Das et al showed that liquid infiltration in the core hole of PCF displayed large negative dispersion of -1600 ps/nm/km along with the shift in the zero-dispersion wavelength [11].…”