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Single longitudinal mode VS single transverse mode

abikutn

abikutn

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Oct 30, 2012
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Hello,

What is the main difference between single longitudinal mode and single transverse mode in laser diodes.

Which one among these is known to give a better focusing spot.

Thanks,
Abhi
 





E

ElektroFreak

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Single transverse mode is the one that gives the smallest focal point. Single longitudinal mode has to do with the frequency (wavelength) of the laser, namely the standing waves in the cavity.
 
abikutn

abikutn

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ElektroFreak said:
Single transverse mode is the one that gives the smallest focal point. Single longitudinal mode has to do with the frequency (wavelength) of the laser, namely the standing waves in the cavity.
Click to expand...

Thank you ElektroFreak ... Simple and Straight ... :)
 
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