In recent years, with the development of network technology and emergence of global Internet business, new Internet applications has a trend of explosive growth. Internet alone is introducing millions of individuals to a new world of information and technology. The demand for increasing bandwidth (voice, video, and data traffic) continues to drive the demand for fiber optical networks. Developm...

All current research on fiber-optic networks assume that the underlying fiber-optic network delivers the messages correctly to their intended destination. To satisfy the assumption of correct delivery of messages, we present an algorithm that locates possible stuck-at faults in the switching subsystems of the nodes of general asynchronous fiber-optic networks and provides the nodes of such a ne...

With joint contributions from academia and industry, this special issue provides a balanced overview of the area fiber-optic network capacity scaling.

Information leaks through regular fiber optic communications is possible in the form of eavesdropping on conversations, using standard fiber optic communications as illegal measuring network. The threat of leakage of audio information can create any kind of irregular light emission, as well as regular light beams modulated at acoustic frequencies. For information protection can be used a means ...

In the present paper, the transmission performance analysis of digital wire and wireless optical links in local and wide areas optical networks have been modeled and parametrically investigated over wide range of the affecting parameters. Moreover, we have analyzed the basic equations of the comparative study of the performance of digital fiber optic links with wire and wireless optical links. ...

A neural-network-based approach is presented to efficiently implement digital backpropagation (DBP). For a 32×100 km fiber-optic link, the resulting “learned” DBP significantly reduces the complexity compared to conventional DBP implementations. OCIS codes: (060.0060) Fiber optics and optical communications, (060.2330) Fiber optics communications.

We describe a fiber-optic gyroscope based on the Sagnac effect, realized on a multiplexed telecom fiber network. Our loop encloses an area of 20 km² and coexists with Internet data traffic. This Sagnac interferometer is capable of detecting signals that are larger than 10(-8) (rad/s)/√Hz, thus approaching ring laser gyroscopes without using a narrow-linewidth laser or sophisticated optics. The ...