Researchers at Alcatel Submarine Networks (Clichy, France) have found that combining a 980-nm-pumped erbium-doped fiber amplifier (EDFA) with a Raman amplifier gives both an improvement...
Detecting gas leaks is important at chemical factories and pipelines, at the scenes of gas-tanker accidents, and around air inlets and outlets in indoor work areas. Geologists...
The moon is proving to be a useful light source for spectroscopy in the stratosphere, a group of French researchers have found. Jean-Baptiste Renard and colleagues at the Centre...
