| 单词 | spectral width |
| 释义 | spectral widthspectral widthThe amount of the electromagnetic spectrum that a laser beam covers. Thus far, it has been impossible to produce light pulses with zero spectral width. For example, a 1540 nm pulse might actually cover 1539.9 to 1540.1 nm, but not 1540.0 dead on. See optical bands. |
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