Optical Society of America

Conquering LED efficiency droop

WASHINGTON, April 30--Like a coffee enthusiast who struggles to get a buzz from that third cup of morning joe, light-emitting diodes (LEDs) seem to reach a point where more electricity no longer imparts the ...

Apr 30, 2012 5 / 5 (10) 0 | with audio podcast

Redefining time

Atomic clocks based on the oscillations of a cesium atom keep amazingly steady time and also define the precise length of a second. But cesium clocks are no longer the most accurate. That title has been transferred ...

Apr 30, 2012 5 / 5 (7) 41 | with audio podcast

On the path to 1 terabit-per-second networks

As IP traffic continues to increase and the router interface rate extends beyond 100 gigabits-per-second (Gb/s), future optical networks—ones that would achieve unprecedented speeds of 1 terabit-per-second (Tb/s)—will ...

Mar 01, 2012 4.4 / 5 (9) 2 | with audio podcast