Abstract: Long-distance distributed fiber-optic sensing based on optical pulse coding is widely applied in structural health monitoring and geological disaster early warning. However, erbium-doped ...

An Osaka Metropolitan University-led research team investigated the decay time of coherent longitudinal optical (LO) phonons both in a GaAs 1−x N x epilayer and in a GaAs single crystal, to clarify ...

Phlux Technology, a manufacturer of avalanche photodiode infrared sensors, will exhibit its Aura family of Noiseless InGaAs APDs at SPIE Photonics West, San Francisco, January 20-22, 2026. The company ...

Sam Barsanti has written about pop-culture for 10 years, and his work has appeared at The A.V. Club, Primetimer, IGN, and Collider. He has also contributed to the popular daily Hustle newsletter, ...

Light beamed through fiber can be used to test and monitor fiber networks. It is also increasingly being used as a sophisticated sensor for the world around the fiber cable. On the surface, an optical ...

As fibre optic networks grow in both size and complexity, so does the need to monitor their performance in real time. The Optical Time Domain Reflectometer (OTDR) is a familiar instrument used by ...