Flat Top Laser Beam Shaper

Flat top beam shaper beam shaper is a diffractive optical element that modifies the intensity distribution of the beam.

Flat top laser beam shaper.

For example a flat top beam shaper creates a far field profile with a uniform intensity in its center. Galilean design thus there are no intermediate focusing of a beam. Conventional diffractive beam shaper requires accurate alignment and beam control. π shaper transforms gaussian or similar intensity distribution of source laser beam to a flat top one.

They are also used in very high power laser systems which use chains of optical amplifiers to produce an intense beam. Almost 100 efficiency spectrum from uv to ir power from mw to kw cw or pulse lasers achromatic design variety of flat top spot sizes low sensitivity to misalignment. Multi year developments are realized in family of pishaper systems 70 models. Top hat beam shapers are extensively used in the laser industry mostly in material.

Basic principles of π shaper operation. Such beam profiles are required for some laser applications. Top hat shapers are either refractive or diffractive optics. The refractive adloptica πshaper flat top beam shapers create a collimated flat top beam and feature near 100 efficiency with no internal focusing allowing for high power input beams figure 4 and figure 5.

Flat top laser beam shapers types of analytic top hat beam shapers. Tem 00 or multimode with gaussian or similar intensity profile can be applied. Adloptica works in field of multifocus and laser beam shaping optics finding numerous industrial and scientific applications. This is in contrast to gaussian beams for example where the intensity smoothly decays from its maximum on the beam axis to zero.

Edmund optics offers laser beam shaping solutions to collimate laser beams transform beam profiles convert beam shapes and much more. Applications of laser beam shapers. A flat top beam or top hat beam is a light beam often a transformed laser beam having an intensity profile which is flat over most of the covered area. Beam shaping lens is a single optical element for gaussian beam spot profile conversion to top hat beam spot with equal energy distribution within spot size.

Their optical design makes holography microscopy and system integration suitable especially over great distances. Achromatic design provdes this transformation for a certain wavelength range. A top hat beam shape r also known as flat top beam shaper is the high end option applicable for laser systems that use single mode low m 2 laser beams typically m 2 1 5. Tl dr q a summary.

A flat top laser beam shaper is a diffractive optical element doe that transforms the gaussian beam into a flat top beam with uniform intensity inside a well defined shape with pre designed angular dimensions and a. Tophat beams are often used in industry for example for laser drilling of holes in printed circuit boards.