2019
DOI: 10.1590/2179-10742019v18i11454
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Highly birefringent do-octagonal photonic crystal fibers with ultra flattened zero dispersion for supercontinuum generation

Abstract: Photonic crystal fiber (PCF) structures with do-octagonal geometry have been studied. These do-octagonal PCF structure have smaller circular holes arranged in rhombic fashion at its centre. Moreover, these small holes are doped with materials like butanol, ethanol, methanol and propanol. Do-octagonal PCF structures doped with methanol and air filled structure report very high birefringence. Ultra flattened zero dispersion has been achieved by all the simulated structures. Besides, low confinement loss and larg… Show more

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Cited by 10 publications
(7 citation statements)
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“…The A eff increases gradually with the wavelength. The structure with the highest Λ gave the highest values of effective mode area at 1.55 μm thus 7.456 μm 2 , agreeing with [13,47], corresponding to a nonlinear co-efficient of 15.64 W −1 km −1 in Figure 7. However, at a Λ of 1.7 μm the value of 41.769 W −1 km −1 of nonlinear co-efficient has been realised which is close to [43] making the structure with Λ of 1.7 μm being highly nonlinear and higher than [13].…”
Section: Verification Of Effective Mode Area and Nonlinear Co-efficientsupporting
confidence: 72%
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“…The A eff increases gradually with the wavelength. The structure with the highest Λ gave the highest values of effective mode area at 1.55 μm thus 7.456 μm 2 , agreeing with [13,47], corresponding to a nonlinear co-efficient of 15.64 W −1 km −1 in Figure 7. However, at a Λ of 1.7 μm the value of 41.769 W −1 km −1 of nonlinear co-efficient has been realised which is close to [43] making the structure with Λ of 1.7 μm being highly nonlinear and higher than [13].…”
Section: Verification Of Effective Mode Area and Nonlinear Co-efficientsupporting
confidence: 72%
“…Birefringence of 0.005 has been achieved at Λ = 1.9, 1.8 and 1.7 μm. This value is smaller than [12,14,43,47,48] however, these structures have defects created in the core. The beat length for the PCF decreases as the wavelength increases.…”
Section: Verification Of Birefringence and Beat Lengthmentioning
confidence: 84%
“…Furthermore, research has shown that achieving high birefringence, high nonlinearity and negative dispersion can be useful for polarization control in fiber optic sensors, telecommunication applications and broadband dispersion compensation in high-bit-rate transmission systems 22 . A lot of work has been reported recently to achieve high birefringence, high nonlinearity and dispersion management through the use of elliptical holes around the core 23,24 , using different shapes of air holes other than circular in or around the core [25][26][27] , defective core 21 , doping the core with gas or liquid and hybrid cladding 28,29 , double cladding 22 , dual core photonic bandgap 30 , triangular lattice 31 and other shapes of air hole rings apart from the widely used hexagonal lattice [32][33][34][35] . Rhombic and elliptical hole PCFs have been presented 26 to achieve birefringence (B) of 8 × 10 -3 and Confinement loss(CL) of 5 × 10 -4 dB/m at 1.55 µm.…”
Section: Numerical Analysis Of Photonic Crystal Fiber Of Ultra-high Bmentioning
confidence: 99%
“…An optical pulse and its evolution with slow varying electric field amplitude are represented by its envelope function A ( z , t ) that is defined by the generalized nonlinear Schrodinger equation as follows :AZ+α2A+false∑n2nin+1βnn!nAtn=iγ(ω0)+iγ1t.Afalse(z,tfalse)-tR(t)false|A(z,t-t)false|2dt.…”
Section: Design Of Proposed Pcf Structuresmentioning
confidence: 99%