| 摘要 |
The invention, a method and circuit for controlling the evolution time interval of a laser output pulse, comprises means for pumping a laser medium 13 in a resonator 10 that includes a Q-switch 22 and polarizer 26 that act in combination to control the loss in the resonator 10. A photodiode 11 senses the resulting fluorescence 12 which is applied to a two level Q-switch driver 27 the output of which selectively adjusts the level of loss in the Q-switch 22 and polarizer 26 from high to intermediate to substantially zero loss states to control the evolution time interval of the resulting laser output pulse.
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