Abstract: This paper describes an optical time-domain reflectometer that incorporates a gated photomultiplier receiver. The instrument can detect extremely weak reflections from fiber breaks (more ...

You’ll also learn how to construct, test, and troubleshoot cabling systems using an Optical Time Domain Reflectometer (ODTR); and how to operate a Fusion Splicer. Upon completion, you’ll be eligible ...

Ultrasound imaging is one of the most widely used diagnostic tools in modern medicine. Behind its noninvasive magic lies a ...

In a development that could reshape the future of microelectronics, optics, and biomedicine, researchers from Jinan ...

Researchers have long recognized that quantum communication systems would transmit quantum information more faithfully and be impervious to certain forms of error if nonlinear optical processes were ...

Scientists have sent quantum information across a record-breaking 158 miles using ordinary computers and fiber-optic cables. It is the first time coherent quantum communication—an ultrasecure ...

For stubborn problems, or just for funsies, there’s also time-domain reflectometry, which can be done with a pulse generator and an oscilloscope to characterize impedance discontinuities in the ...

Fibre optics and optical communications is the use of thin ... Gabriel Saavedra and colleagues introduce an all-fiber device for rapid core-switching in multi-core fiber systems, achieving speeds ...

A new fiber-optic device enables rapid, microscope-free detection of biomarkers using a gliding motility assay. The platform ...

Q. A small candle, 2.5 cm in size is placed at 27 cm in front of a concave mirror of radius of curvature 36 cm. At what distance from the mirror should a screen be placed in order to obtain a ...