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The optimum photon lifetime for the minimum pulsewidth of a gain-switched laser is investigated both analytically and numerically. For a fixed pump power, the shortest pulse can be produced when the laser cavity is optimized to give an optical pulsewidth that is /spl sim/2.5 times the photon lifetime. This is in good agreement with experimental results.>
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Helkey et al. (1995) studied this question.
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