Definition: Type of light-emitting diode designed to output coherent llight by stimulated emission. * Also known as laser diode and diode laser. Unsung heroes of the Modern Era The lowly diode laser sounds like a laboratory curiosity; a solution awaiting a problem? Think again. It is what sits under the little aspheric lens under all those CD drives, MiniDiscs, DVD players which we all have. Get the idea? Let me tell you, then. Diode lasers are a cornerstone of modern technology: they are incredibly reliable, incredibly cheap. Next time you feel neglected, cheer yourself up by break a bottle of bubbly for the over-looked semiconductor laser.
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