An optical fiber sensor network for ultrasonic measurement based on wavelength division multiplexing (WDM) and time division multiplexing (TDM) technology is presented. Each of the sensor probes is an optical fiber extrinsic Fabry-Perot interferometer (EFPI) which is composed of the fiber’s end face and the aluminum thin diaphragm. The sensors are arranged in different wavelength domains formed...

Optical camera communication (OCC) is a type of visible light that employs as the receiver. Various flicker-free OCC methods using general-purpose low-frame rate have been proposed. In particular, undersampling method uses short exposure and light-emitting diode blinks faster than camera's frame rate. Despite time, transmitter has to send symbol for period or longer because relationship between...

A combination of flexible optical time division multiplexing and dense wavelength division multiplexing techniques is deployed for realising a reconfigurable multi-Tbit/s data transport network connecting over 13000 telescope antennas. Both short-range and long-range transport in the 1.3 μm and in the 1.5 μm wavelength range, respectively, are explored. Introduction Very high capacity optical d...