Publications

This paper reviews the key technologies for non-repeatered systems and describes experimental demonstrations of long reach or high capacity, based on 40Gb/s PDM-BPSK or 100 Gb/s PDM-QPSK modulation

In a packet-switched network, the service provider can charge users a state-dependent price, which depends on the extent to which the network is congested.

We investigate a distributed, state-dependent, dynamic routing strategy, called here Aggregated-Least-Busy-Alternative (ALBA), for circuit-switched loss networks.

In the digital implementations of maximum-likelihood detectors based upon the Viterbi algorithm, bounds on the values of path metric differences are important parameters, and various techniques hav

Network Functions Virtualization (NFV) environments can provide increased elasticity and flexibility for operators, as network-related services can be scaled and moved as needed.

We have explored the possible role of bulk and interface defects in determining the potential barrier occurring at an "ideal" epitaxial metal-semiconductor contact.

We consider the behavior of two-dimensional spin-glass films within a phenomenological scaling theory introduced previously.

The ``material{''} and ``device{''} linewidth enhancement factor α of five-quantum-dot (QD)-layer single-mode lasers emitting at 1.3 μ m are investigated using two methods.

Life tests on our quantum dash lasers were carried out at 10 mW at 70 and 90degC. Highly stable static and noise characteristics prior and after 11200 hours of ageing tests are analysed.

Recent work in history-based branch prediction uses novel hardware structures to capture branch correlation and increase branch prediction accuracy.