Primary performance data for passive fiber-optic devices is provided by spectral measurement of optical insertion loss (IL) and polarization-dependent loss (PDL). Often used to characterize optical ...

Scientists hope to employ networks of “dark fibers,” unused fiber optic cables, in order to sense sound waves moving underground—the signals of earthquakes. Some millions of miles of fiber optic cable ...

Thousands of miles of fiber-optic cables, already in place across California, can shake up the study of earthquakes. New research out of Caltech used a section of telecommunication fiber to sense and ...

Jonathan Ingham and colleagues at the University of Cambridge, UK, have used kilometer lengths of standard optical fiber to demonstrate that changes in photon number states do not induce dispersion ...

Optical engineers require fast optical switches for a variety of purposes without paying huge sums. LASER COMPONENTS offer a range of inexpensive, high reliability, optical switches with either single ...

Electrical signals control a vast number of activities in the human body, from exchanges of messages between brain neurons and stimulation of the heart muscle to the impulses that enable hands and ...

Two recent studies suggest that fiber-optic cables laid directly on the moon's surface could potentially detect moonquakes, offering a simpler way to gather seismic data to support future human and ...

Researchers at Los Alamos National Laboratory have demonstrated that fiber-optic cables buried in simulated lunar soil can ...