Laser Beam samplers are used for on-line monitoring of high
power lasers, by allowing the main high power beam (zero order) to
propagate undisturbed along the optical axis, simultaneously producing two
side beams with low energy. These sample beams are located around the main
beam (-1 and +1 diffractive orders), and are characterized by a sampled
power ratio and a given separation angle between them. HOLO/OR can easily customize the sampling ratio and separation
angle. Other beam samplers have a few disadvantages as deflecting the beam
from the original path, polarization dependence, energy loss up to 8%, and
some require special incident angle.
