Question:
The beam profile of a laser operating in \(TEM_{00}\) (fundamental mode) is:
The beam profile of a laser operating in \(TEM_{00}\) (fundamental mode) is:
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The Gaussian beam profile ensures minimal divergence and highest spatial coherence.
Updated On: Mar 26, 2025
- Lorentzian
- Voigt
- Gaussian
- Triangular
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The Correct Option is C
Solution and Explanation
The fundamental transverse mode of a laser beam, \(TEM_{00}\), follows a Gaussian intensity distribution:
\[ I(x,y) = I_0 e^{-2(x^2 + y^2)/w_0^2} \] where \( w_0 \) is the beam waist. The intensity profile is Gaussian-shaped in both transverse dimensions.
\[ I(x,y) = I_0 e^{-2(x^2 + y^2)/w_0^2} \] where \( w_0 \) is the beam waist. The intensity profile is Gaussian-shaped in both transverse dimensions.
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