We report feedback-assisted adaptive multicasting from a single Gaussian mode to multiple orbital angular momentum (OAM) modes using a single phase-only spatial light modulator loaded with a complex phase pattern. By designing and optimizing the complex phase pattern through the adaptive correction of feedback coefficients, the power of each multicast OAM channel can be arbitrarily controlled. ...

The network performance of a single joint multicasting capable optical cross-connect (jMC-OXC) integrating both spaceand frequency-splitters is simulated. The results show that the jMC-OXC architecture with limited frequency-splitters can obtain a close performance to that with full frequency splitters. The improvement offered by jMC-OXCs on the performance of multicasting routing is also discu...

Asynchronous transfer mode (ATM) networks must deene multicast capabilities in order to eeciently support numerous applications, such as video conferencing and distributed applications, in addition to LAN emulation (LANE) and Internet protocol (IP) multicasting. Several problems and issues arise in ATM multicasting, such as signaling, routing , connection admission control, and traac management...

Different multicasting schemes in optical packet switched networks are discussed, including the parallel mode, serial mode, and hybrid mode multicasting schemes. Simulated modeling technique is applied to compare the network-level performance of the three multicasting schemes. A conclusion can be drawn from the results that since the hybrid-mode multicasting scheme can increase the multicast su...

In this paper, we propose a dynamic multicasting policy based on the phased proxy caching to reduce the network bandwidth from the central server to the clients. In the proposed multicasting policy, for an object, a multicasting channel is allocated only if there are more than two active unicast streams for that object. So, the length of a multicasting window varies with the arrival rate of tha...

AbstractAsynchronous transfer mode (ATM) networks must de ne multicast capabilities in order to e ciently support numerous applications, such as LAN emulation, Internet protocol (IP) multicasting, video conferencing and distributed applications. Several problems and issues arise in ATM multicasting, such as signaling, routing, connection admission control, and tra c management problems. IP inte...

AbstractAsynchronous transfer mode (ATM) networks must de ne multicast capabilities in order to e ciently support numerous applications, such as LAN emulation, Internet protocol (IP) multicasting, video conferencing and distributed applications. Several problems and issues arise in ATM multicasting, such as signaling, routing, connection admission control, and tra c management problems. IP inte...

Overlay multicasting has been proposed for implementing multicast routing in the application layer as a practical alternative to IP multicasting. Since a packet in overlay multicasting is transmitted via unicast routing between the end hosts, the same packet can be sent over a link multiple times, and thus the main challenge in overlay multicasting is organizing the multicast delivery trees to ...

Abstract Orbital angular momentum (OAM), which describes tailoring the spatial physical dimension of light waves into a helical phase structure, has given rise to many applications in optical manipulation, microscopy, imaging, metrology, sensing, quantum science, and communications. Light beams carrying OAM feature two distinct characteristics, i.e., inherent orthogonality unbounded states prin...