Supercontinuum generation in ultra-flattened near-zero dispersion PCF with C7H8 infiltration

Circular lattice benzene-core PCFs with flat near-zero dispersion for low-power broad-spectrum supercontinuum generation

“…For #F 2 , the SC spectrum can be extended from a part of the visible to MIR with even hundreds of times smaller power and short fiber length. Studies [14,29,31,48] also take advantage of the first air-hole ring diameter control model, but the SC spectral widths obtained are still limited with P values ranging from 0.45 to 10 kW. Moreover, with the same circular lattice, the work of Thuy et al [47] also showed a disadvantage in terms of spectrum broadening even using 7.4 and 24.7 times more peak power than ours.…”

Design and analysis of the C6H6-filled circular photonic crystal fiber with ultra-flat dispersion for broadband supercontinuum generation with peak power of 130 W and 250 W

“…The phenomenon of supercontinuum generation (SCG) that produces broadband, spatially coherent, and high-brightness light sources from extremely short pulses, has consistently served as an endless source of inspiration for fiber optic methods to control PCF dispersion have been developed including the use of highly nonlinear substrates such as glass chalcogenides and semiconductor materials [5,6], tapered fibers [7] or fibers with diverse geometries [8][9][10]. Among these silica-PCF is more popular because the characteristics of silica (SiO 2 ) material make the fiber production process more convenient.…”

“…PCFs with new models are investigated through theoretical numerical simulation and experiment, focusing on changing a number of structural parameters, including crosssection, fiber core, air hole size in the cladding [8,[12][13][14] or highly nonlinear fluid filling the hollow core [15][16][17][18][19][20][21][22][23]. As a result, low-value, ultra-flat dispersion [9,18], high nonlinearity [22,23], and low attenuation [20,21] have been achieved broadening the SCG spectrum in the near-infrared and midinfrared regions. Although concerns exist regarding the complex fiber structure, the rapid development of fiber optic technology today renders silica-PCFs feasible for fabrication [17,24,25].…”

“…Experimentally, liquid core PCFs can be fabricated using standard fabrication, stacking, and drawing processes [17,30,31]. Commonly used nonlinear liquids include toluene (C 7 H 8 ) [9,16,23], nitrobenzene (C 6 H 5 NO 2 ) [21], benzene (C 6 H 6 ) [13,32], carbon tetrachloride (CCl 4 ) [17], tetrachlorethylene (C 2 Cl 4 ) [33,34], chloroform (CHCl 3 ) [20,35], carbon disulfide (CS 2 ) [22], and ethanol (C 2 H 5 OH) [18]. Choosing a variety of the cladding geometries or introducing defects into the air hole rings are suitable ways to control the dispersion properties of PCFs.…”

Enhancing optical fiber performance through liquid infiltration in photonic crystal fiber

“…Photonic crystal fibers (PCFs) enable effective management of dispersion by meticulously designing their internal structure. Numerous facets of dispersion characteristics have already undergone thorough investigation and analysis, including the zero-dispersion wavelength shift [11], ultra-flattened dispersion characteristic [12], optimization of chromatic dispersion [6], tailored dispersion profiles [13], dispersion compensation [14].…”