Supercotinuum Lightwave Source for Telecommunications

Lightwave of the future.

It was the late 1960s. The Beatles were still the rage, the Vietnam War was in full swing, and Star Wars was a decade away. Theodore Maiman, utilizing a technique of concentrating and amplifying monochromatic light originally developed by two teams of researchers, produced a device known as LASER, light amplification by stimulated emission of radiation. Immediately, the term “ray gun” came to m...

Optical Components for WDM Lightwave Networks

Recently, there has been growing interest in developing optical ber networks to support the increasing bandwidth demands of multimedia applications, such as video conferencing and World Wide Web browsing. One technique for accessing the huge bandwidth available in an optical ber is wavelengthdivision multiplexing (WDM). Under WDM, the optical ber bandwidth is divided into a number of non-overla...

On new architectures for lightwave networks

A Telecommunications Development Framework for Telecommunications Operators in the Sadc

Telecommunications development in Southern Africa is encouraged by government-level support and market trends. Various markets in the Southern African Development Community (SADC) region offer telecommunications operators’ solid growth potential and the advantages of geographic diversification. This paper presents a logical methodology for telecommunications operators (mobile or fixed) to guide...

Speech technology for telecommunications

Speech is the easiest, most expressive and most natural means of human communication. Most of us have received intensive training in using it from the day we were born!. But speech is more than just a way of transmitting words or ideas — it conveys the essence of human emotion, moods, and personality. It is BT's core business, accounting for over 90% of revenues. It is also our primary means to...