Controlling Chaotic Lasers

Do lasers really exhibit chaos? Irregular intensity fluctuations were observed even in the earliest days of lasers. For example, the "spiking" fluctuations present in the output of a ruby laser were difficult to miss. All fluctuation phenomena observed were then commonly labeled "noise." Since that time, however, it has become evident that apparently random fluctuations can also occur in totally deterministic systems—those that are modeled by systems of equations containing no sources of noise. Such behavior is commonly called chaos


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