It is not only applicable for the CW lasers, but also for the pulse lasers.

既适用于连续激光器，也适用于脉冲激光器。

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Don't expect telecoms to beat down the doors for dark pulse lasers, however, said Purdue University's Andrew Weiner, an expert on ultra-fast optics.

然而，美国普渡大学的超高速光学专家安德鲁·韦纳说，不要指望电信业者会为暗激光器敞开大门。

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There is another class of lasers, however, that pulse, oscillating between an "on" stage, where light is produced, and an "off" stage, when the amount of light is dramatically reduced.

脉冲激光器是另一类的激光器，它的脉冲是在“开”与“关”两种状态的振荡之间产生。 当激光器处于“开”的状态，产生光，在“关”的状态，光量显著减少。

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The trick: substituting the printer's continuous wave lasers with faster, more powerful pulse lasers that had finally become consistent enough to record clear pictures.

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But if you think that's about as cool as the carbon material can get, listen to this: It can also be used to make ultrashort-pulse lasers.

ENGADGET

It can then release the light it absorbs in quick bursts that last a few femtoseconds each (with one femtosecond lasting one millionth of one billionth of a second), which is what ultrashort-pulse lasers do.

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