While noise is usually a bad thing for your signal (hence the 'signal to noise ratio' concept) a group of researchers from Belgium, France and Spain have found that adding a tiny dose of noise to a an electrical current can make a smoothly controlled laser where before they had an uncontrolled one. The vertical-cavity surface-emitting lasers (VCSELs) would be extremely useful in boosting bandwidth if they were reliable (unlike now). They're not sure why it works - noise ought to generally be a negative deal - but there's another truism: whatever works, works. [GT] Controlling Lasers with Chaos Related posts Multi Meter with spirit level and laser Shiny Video Review: Microsoft Wireless Laser Desktop Keyboard and Mouse SeeReal Hologram Television: buy this TV and dinosaurs will eat you