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Propagation characteristics of a solid defect-core W-type photonic crystal fiber have been investigated by using finite element method. The proposed W-type photonic crystal fiber can perform as single-mode fiber with low dispersion and bend loss for large wavelength range and hence can be utilized for telecommunications as well as sensing.
A coaxial fiber of chosen length, supporting two symmetric modes (LP01 and LP02), excited by periodic sequence of Gaussian temporal light pulses of chosen repetition rate, regenerates original pulse sequence -“Talbot Effect” in time domain.
We propose a six fold solid-core photonic quasicrystal fiber for studying optical properties for wavelengths from 200 to 3000 nm and demonstrate a low dispersion and high nonlinearity at 1060 nm for few-cycle pulse generation.
Structural dependence of PCF parameters towards ultra-flat dispersion in the C band of communication wavelength has been investigated and D=0±0.58ps/(nm-km) over a bandwidth of 622nm in the communication wavelength band (C-band) has been achieved.
We propose a lead silicate all-solid photonic crystal fiber which exhibits enhanced nonlinearity and very flat and near-zero dispersion in anomalous region and is suitable for broadband supercontinuum with 50fs-2kW pulses pumped at 1.55 micrometer.
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