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chris_0101
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Homework Statement
FWHM is 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.
I have this lab that requires me to calculate the limiting Spectral resolution, R, from a measured FWHM value (2.131nm for example) and an assumed natuarl line width, L, of 1GHz. Whenever I solve for the R value it is the same as the FWHM since 1GHz converted to nm is a very small number.
So, Can anyone give me any feedback regarding this.
Thanks
Homework Equations
FWHM = sqrt(R^2 - L^2) - similar to the pythagorean theorem
rearranged for R
R = sqrt(FWHM^2 - L^2)
The Attempt at a Solution
R = sqrt(2.131^2 - 0.3 x 10^-10)
R = sqrt(2.131^2)
R = 2.131
Any help would be greatly appreciated.