Optical signal transmission can be significantly improved by limiting the wavelength of transmitted signals. Fiber Bragg grating (FBG) is a technique widely used in optical communication, sensing, and ...

Postdoctoral or Doctoral Researcher in statistical signal processing.

Former national security adviser Mike Waltz defended his use of the messaging app Signal during a Tuesday confirmation hearing where lawmakers largely avoided the topic. The “Signalgate” scandal, in ...

WASHINGTON – Former Trump national security adviser Michael Waltz told senators during a contentious confirmation hearing that "no classified" information was discussed in a controversial Signal chat ...

Former national security advisor Mike Waltz has been nominated for UN Ambassador, Trump said Thursday. A day before the news broke, Waltz was photographed using Signal during a cabinet meeting. The ...

A photo taken by Reuters' Evelyn Hockstein during a Cabinet meeting Wednesday shows Waltz holding his phone below the table, with the encrypted-texting app open and visible. It also shows Waltz in ...

The cumbersome, outmoded technology is a bad fit for the demands of national security work. The entrance to the sensitive compartmented information facility, or SCIF, used by members of Congress in ...

Government systems are not always optimal for the fast-paced environment officials work in, and Signal is an approved alternative for some unclassified communications, individuals familiar with ...

The White House is clapping back against media reports alleging intelligence officials have been using the end-to-end encrypted messaging app Signal to send classified information, describing the ...

Starting today, those who own an Echo smart speaker or Echo Show display won't be able to block their devices from sending all voice recordings to Amazon for analysis. The retail juggernaut's ...