System Performance and Limits of Optical Modulation Formats in Dense Wavelength Division Multiplexing Systems

Quadrature Amplitude Modulation All Optical Orthogonal Frequency Division Multiplexing-dense Wavelength Division Multiplexing-optical Wireless Communication System under Different Weather Conditions

This paper proposes an analytical model for evaluating the performance of dense wavelength division multiplexing (DWDM) for all optical orthogonal frequency division multiplexing (AO-OFDM) optical wireless channel. The investigated performance for proposed system is evaluated for the parameters  bit error rate (BER) and Q factor .The constellation diagrams, and bit error rate (BER) of the recei...

Advanced Modulation Formats for Ultra-Dense Wavelength Division Multiplexing

Evaluation of Wavelength Division Multiplexing System using Different Modulation Formats

In this paper, we have demonstrated the eight channel WDM system using NRZ, RZ and duobinary modulation formats. The WDM system has been analyzed by varying the input power from 0 to 20dBm for different modulation formats in order to find the modulation format for a high data rate optical transmission system. Furthermore, it is found that duobinary modulation is much better than Return-to-Zero ...

Performance Evaluation of Optical Cross Connects for Dense and Ultra Wide Wavelength Division Multiplexing Transmission Systems

Continuous growth in demand for optical network capacity and the sudden maturation of WDM technologies have fueled the development of long-haul optical network systems that transport tens to hundreds of wavelengths per fiber, with each wavelength modulated at 10 Gb/s or more. Micro-electromechanical systems devices are recognized to be the enabling technologies to build the next-generation cost...

High Capacity Dense Wavelength Division Multiplexing Optical Local Area Network

We propose a new optical Local Area Network (LAN) that exhibits high total capacity and enables the connection of a great number of nodes. It is based on the combined advantages of coherent techniques and Frequency Division Multiplexing (FDM). The network topology is a passive star with a shared local oscillator that allows simple emission and detection schemes.