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At the core of the design is a short Fabry-Perot resonator which produces spatial time slices of a focused laser beam and post the resonator is a pair of wire grid polarizers. The Fabry-Perot resonator optics provides a ~ 4.0 optical density for the incoming laser beam. As the intensity of the light following the Fabry-Perot resonator is sufficiently low, a very efficient and compact arrangement of a pair of wire gird polarizers are introduced to provide a wider dynamic range of focus intensity at the sensor plane without the need to add additional neutral density filters. This simple, but unique combination of optics, makes for a very compact and efficient means to evaluate focused laser beams from the ultra violet to the far infrared. |
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Fabry–Perot interferometers
Beam analyzers
Cameras
Sensors
Resonators
CMOS sensors
Geometrical optics
