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Physics, 18.03.2021 01:50 u8p4

8) Given that a particular laser comprising of 1 point spherical mirror resonator supports H-G transverse
modes. If a cross shaped metallic grid (i. e., with two
perpendicular metallic wires) is used as the intra-
cavity aperture, then which of the following lower
order transverse modes are filtered out at the laser
output?
TEM00. TEM,
TEM01, TEM10, TEM1
TEMPO, TEM01, TEM10
TEM TEM TEM TEM

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