Optical Transport Network

About: Optical Transport Network is a research topic. Over the lifetime, 6055 publications have been published within this topic receiving 85783 citations.

Energy-efficient routing and bandwidth allocation in OFDM-based optical networks

Abstract: This paper introduces a novel routing and bandwidth allocation strategy for orthogonal frequency-division multiplexing (OFDM)-based elastic optical networks, aiming to optimize the network operational expenditures in terms of energy consumption. Based on the previously reported analytical bit error rate model for an OFDM-based optical transmission line, an optimization problem is formulated to allocate a set of lightpaths according to realistic network topologies, where the routing path, modulation level, bandwidth, and optical transceiver power of each lightpath are jointly determined for achieving minimum power consumption. To reduce computational complexity, a suboptimal iterative flipping method for solving the above NP-complete optimization problem is proposed, which achieves better performance than a simulated annealing scheme while consuming considerably fewer search iterations.

Data exchange architecture using optical links

Abstract: A data exchange architecture using optical links. A device is proximate to a display screen. An optical module is coupled to the device. An optical link is coupled to the optical module, wherein the optical module to convert optical signals received by the optical module over the optical link into electrical signals for the device.

Survivability in the Optical Internet Using the Optical Burst Switch

Abstract: Due to its salient features, the optical burst switch is becoming a key technology for the optical Internet. Within this technology, the survivability issue in the optical Internet has to be addressed because a simple failure causes severe damage to the huge amount of data carried in optical fiber. In this paper, we introduce a restoration procedure that can provide good survivability in the optical burst switch (OBS)-based optical Internet. OBS restoration can survive various types of network failure while maintaining good network performance. We propose novel restoration mechanisms, namely, “temporary Label Switched Path (LSP)” and “bossy LSP,” to enhance restoration time and network utilization. The simulation results verify that the proposed OBS restoration achieves good network performance and provides good network connectivity as well.

Designing of an all-optical time division multiplexing scheme with the help of nonlinear material based tree-net architecture

Abstract: In the field of optical interconnecting network and in super fast photonic computing system, the tree architecture and optical nonlinear materials can play a significant role. Nonlinear optical material may find important uses in optical switching. Optical switch using nonlinear material makes it possible for one optical signal to control and switch another optical signal through nonlinear interaction in a material. In this communication such materials have been successfully exploited to design an all-optical tree-net architecture, which can be utilized for time division multiplexing scheme in all-optical domain.

Optical fiber circuits

Abstract: Emerging high capacity electronic systems are increasingly adopting optoelectronics as a means of surpassing the limitations of electrical interconnection. Although photonic technology has long been preferred in long-haul communications, optics is now quickly becoming a viable option for short link applications. As optical components begin to populate all levels of the system hierarchy, serious problems arise in the management of fiber cables. In this paper, we present a coordinated and manufacturable solution to this problem in the form of optical fiber circuits useful for backplane and inter-shelf communications. >