ATIS Telecom Glossary
Monday, September 01, 2014

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full width at half maximum (FWHM)
An expression of the extent of a function, given by the difference between the two extreme values of the independent variable at which the dependent variable is equal to half of its maximum value. Note 1: FWHM is applied to such phenomena as the duration of pulse waveforms and the spectral width of sources used for optical communications. Note 2: The term full duration at half maximum (FDHM) is preferred when the independent variable is time.

 

 

 

 

 

 

 

 

 

 



 
These definitions were prepared by ATIS Committee PRQC
 
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