Abstract: We present an investigation into the use of reflectometric measurements for characterizing modal dispersion in optical fibers that support space-division multiplexing. A theoretical ...

Protesters across the U.S. are calling for “no work, no school, no shopping” as part of a nationwide strike on Friday to oppose the Trump administration’s immigration crackdown. The demonstrations are ...

MEXICO CITY (AP) — Mexican President Claudia Sheinbaum reiterated that operations on Mexican soil are always carried out by Mexican forces, in her latest attempt to assuage concerns of U.S.

Former FIFA president Sepp Blatter on Monday backed a proposed fan boycott of World Cup matches in the United States because of the conduct of President Donald Trump and his administration at home and ...