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optical power News
Optical Power Limiter Pushes Attack-Proof Quantum Communication Forward
SINGAPORE, July 19, 2021 — Researchers from the National University of Singapore (NUS) developed two methods to enable quantum key distribution (QKD) communications to avoid side-channel attacks — instances in which attackers exploit weaknesses in the setup of the information system to eavesdrop on the exchange of secret keys. QKD is a method for secure communication that uses quantum mechanics to encrypt information. While the security of QKD is unbreakable in principle, if it is incorrectly implemented,
JDSU Delivers 1 Millionth Pump Laser
MILPITAS, Calif., Oct. 12, 2010 — JDSU announced that San Jose, Calif.-based ADVA Optical Networking is the recipient of JDSU's one millionth 980 nm pump laser. Pump lasers are used to power erbium-doped fiber amplifiers, a critical optical component that regenerates weakened...
Detector Counts Photons with 99% Efficiency
GAITHERSBURG, Md., April 28, 2010 — Scientists at the National Institute of Standards and Technology (NIST) have developed the world’s most efficient single photon detector, which is able to count individual particles of light traveling through fiber optic cables with roughly 99...
Noise in Quantum Cascade Lasers Investigated
Jun 1, 2005 — Scientists from Technische Universität Darmstadt and Fraunhofer Institut für Angewandte Festkörperphysik in Freiburg, both in Germany, have determined that the dependence of the intensity noise on optical power in quantum cascade lasers differs from...
Origin of 'Fiber Fuse' Is Revealed
Aug 1, 2003 — In the argot of fiber optics engineers, a "fiber fuse" occurs when a fiber, overloaded with optical power, fails catastrophically. Several mechanisms have been suggested to explain the phenomenon, but now a team from OFS Research Laboratories in...
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April 2024
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