Laser Components is one of the few worldwide manufacturers that can
produce Gaussian mirrors. Gaussian mirrors are also known as
graded reflectivity mirrors, GRM or variable reflecting mirrors, VRM.
The special coating is characterized by a degree of reflecion that
falls off in a Gaussian-shaped curve starting from the center of the
optics.
Customers can choose almost any shape the Gaussian curve should take.
The reflection values in the center range from a few percent to a
maximum of 85%. Gaussian mirrors are extremely stable in the laser and
suited for high power levels. They are used as output couplers in
unstable resonators where they help to reduce the beam divergence at
high pulse energies. The components are also used to generate laser
beams with a very homogeneous power distribution, which are required
for illumination tasks, in material processing, or medical
applications. To produce high pump efficiency, Gaussian mirrors are,
furthermore, used in frequency-doubled systems.
The coating process of the Gaussian mirrors has been optimized. For
that the manufacturing costs have been significantly reduced. Mirrors
at 1064 nm, in particular, are available inexpensively at very short
delivery times.
More information at
http://www.www.lasercomponents.com/