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In this paper, different detection technique is presented through bit rate 1Gbps. Advanced modulation technique is used for enhancing the performance of optical access network. Differential phase shift keying (DPSK) has significant attention for the researcher during last two decades. Optisystem version 12 has been employ for investigate the transmission capability of the hybrid system. The comparison...
This paper contains a microstructure photonic optical fiber based on a circular cladding with asymmetric core for high birefringence. Simulation results show a high birefringence of 2.78×10−2 at 1550 nm operating wavelength. The proposed fiber also has dispersion compensation properties in a wide range of wavelengths covering S to L communication bands. The proposed design can obtain a negative dispersion...
This research work focuses to design Hybrid OCDMA over WDM system with advance modulation techniques DPSK which will improve the performance for long distance fiber length. Hybrid system merges with different types of techniques like OCDMA and WDM. Modified double weight (MDW) code is proposed as the signature address code. Multiuser interference and increase the bit-error-rate might be condense satisfactory...
The interest in producing fiber optic networks that can sustain the rise of bandwidth demands is getting popular since last one decade. The implementation of Optical Code Division Multiple Accesses (OCDMA) over Wavelength Division Multiplexing (WDM) system is developing to meet the demand of the users. By developing OCDMA over WDM, Multi Access Interference (MAI) might occur. MAI is one of the principal...
This paper presents the proposal of a hybrid cladding photonic crystal fiber offering flat dispersion and low confinement operating in the Telecom bands. Simulation results reveal that near zero ultra flattened dispersion of 0 ± 1.20 ps/(nm.km) is obtained in a 1.25 to 1.70 μm wavelength range i.e. 450 nm flat band along with low confinement losses which is less than 10−2 dB/km at operating wavelength...
In this paper, we numerically demonstrate a large negative dispersion with highly birefringent square lattice photonic crystal fiber (SLPCF) in the entire telecom wavelength bands. Finite element method with perfectly matched layer boundary condition is used to evaluate the modal properties of the fiber. Numerical results reveal that it is possible to obtain a large negative dispersion coefficient...
This paper presents a microstructure optical fiber based on an hexagonal structure for dispersion compensation in a wideband transmission system. According to simulation, negative dispersion coefficient of − 562 ps/(nm.km) and relative dispersion slope (RDS) close to that of single mode fiber (SMF) of about 0.0036 nm−1 is obtained at 1550 nm wavelength. Besides the proposed hexagonal microstructure...
This paper presents a microstructure optical fiber based on an octagonal structure for dispersion compensation in a wide range of wavelengths. It is shown theoretically that it is possible to obtain negative dispersion coefficient of − 821 ps/(nm.km) and relative dispersion slope (RDS) close to that of single mode fiber (SMF) of about 0.0036 nm−1 at 1550 nm wavelength. Besides the proposed octagonal...
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