JoeOh Posted March 18, 2010 Share Posted March 18, 2010 What advantages would there be to having a laser that can output the color white? I seen some videos on youtube that have 3 different lasers lined up with mirrors that combine the colors RGB to output white. I do have an idea on how to make a single unit laser that can output the color white. I tried to search on the net if these white laser units already exist. If they do then I haven't come across it yet. Though I'm sure I'm not the only person to come up with the solution I am thinking about. Link to comment Share on other sites More sharing options...
Mr Skeptic Posted March 18, 2010 Share Posted March 18, 2010 Nope, lasers will only produce one frequency of light, and so can't be white (which is a mixture of all colors). Link to comment Share on other sites More sharing options...
swansont Posted March 18, 2010 Share Posted March 18, 2010 Optical frequency combs output a discrete spectrum, but one that can cover all of the visible, so it ends up looking white. Link to comment Share on other sites More sharing options...
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