Multimode Passive Optical Network for LAN Application

Bandwidth analysis of multimode fiber passive optical networks (PONs)

Duplexing methods for PON systems using multimode fiber with multicarrier transmission

Deploying a PON using multimode fiber in the access network is viewed as a costeffective solution. However, a multimode fiber link exhibits a time-dispersive nature. To cope with this problem, an OFDM transmission method is used. In this work, a comparison study on several duplexing methods for this system was performed to decide upon the recommended method for the system. The choices that were...

Alleviation of Downstream Impediments of a Passive Optical Network through Implementation of a Distributed Architecture

In this work, we examine the downstream impediments of centralized Ethernet passive optical networks supporting LAN emulation [inter-Optical Network Units communication(ONU)]. The available downstream bandwidth in the centralized scheme is reduced due to LAN emulation and upstream bandwidth allocation functions. The reduction in available downstream bandwidth results in degraded downstream perf...

Application of feasible vertex labeling for dynamic capacity allocation of a multicarrier multimode PON

Multimode PON is considered as a potentially cost-effective solution for a Full Service Access Network. To avoid the limited bandwidth-distance product of multimode fiber when using baseband transmission, passband transmission which utilizes highorder transmission lobes in GHz region of the electrical-domain link frequency responses can be used instead [1]. However, due to the intermodal disper...

Efficient Multimode Optical Fiber-to-Waveguide Coupling for Passive Alignment Applications

An efficient optical fiber-to-waveguide coupling technique is described, using a novel transcision cut, alignment ways, and D-shaped fibers. Fiber-to-waveguide coupling efficiencies as high as 96% have been achieved with multimode graded-index fibers and ridge polymer optical waveguides. Advantages of using this new coupling technique include ease of fiber-to-waveguide alignment interior to the...