Increased channel capacity of optical transmission system is obtained by either increasing the bit rate of transmission or by using the technique of Wavelength Division Multiplexing (WDM). In long distance communication, higher launched power is required to achieve the required signal-to-noise ratio (SNR) but with increased launched optical powers, rates and the number of wavelength channels, n...

In recent years, with the development of network technology and emergence of global Internet business, new Internet applications has a trend of explosive growth. Internet alone is introducing millions of individuals to a new world of information and technology. The demand for increasing bandwidth (voice, video, and data traffic) continues to drive the demand for fiber optical networks. Developm...

Volume 3, Issue 4, April 2014 Page 346 Abstract Dense Wavelength Division Multiplexing (DWDM) is a promising technique which can meet the increasing demand for communication bandwidth. It multiplexed all the channel signals onto single fiber thus increases the capacity of existing fiber. It is a perfect substitute for long haul networks. The major problem that DWDM technique suffered is dispers...

The use of new types of fibre with high density and high capacity dense wavelength division multiplexing (DWDM) systems leads to the investigation of system performance with these fibres. This paper compares the performance of a high-density (0.8bits/s/Hz) DWDM transmission system with 25 channels and 40Gb/s per channel with a channel spacing of 50GHz, using conventional single-mode fibre or no...

The compact size and high wavelength-selectivity of microring resonators (MRs) enable photonic networks-on-chip (PNoCs) to utilize dense-wavelength-division-multiplexing (DWDM) in their waveguides, as a result, attain bandwidth on-chip data transfers. Unfortunately, hardware Trojan (HT) PNoC can manipulate the electrical driving circuit its MRs cause snoop from neighboring wavelength channels s...

Abstract We report a low-cost manufacturing approach for fabricating monolithic multi-wavelength sources dense wavelength division multiplexing (DWDM) systems that offers high yield and eliminates crystal regrowth selective area epitaxy steps are essential in traditional fabrication methods. The source integrates an array of distributed feedback (DFB) lasers with passive coupler semiconductor o...

– a network made ‘’for and with the concerned community”, able to come up to the expectations and to fit the new plans. A total mastery in transparency (for its management, the control of development, . . . ) is the garanty for a network serving the community it was made for. – an optic structure in ‘’optical fibre” and DWDM (Dense Wavelength Division Multiplexing), ATM and gigabit protocols, s...

OVPN (Optical Virtual Private Network) over IP (Internet Protocol)/GMPLS (Generalized Multi-Protocol Label Switching) over DWDM (Dense Wavelength Division Multiplexing) technology with QoS assurances is considered as a promising approach for the next generation OVPN. In this paper, we suggest a multicast OLSP (Optical Label Switched Path) establishment mechanism for supporting high bandwidth mu...