Optical Surfaces Ltd, has been producing optical components and systems for
more than 30 years and is now accepted as one of Europe's leading manufacturers
of high-precision optics.
The off-axis Beam Expander with three tremendous advantages
- Off-axis design produces no centre obscuration and efficient transmission
is obtained, limited only by the reflectivity of the mirrors. Alignment aids
are provided to ensure correct beam pointing.
- The reflective design is achromatic and with aluminium coatings can operate
from UV to far IR without adjustment. The wavelength of the operation is unaffected
by the mirror substrate materials. Mirrors are OS Ltd precision quality with
lambda/10 surface accuracy.
- The off-axis design is housed in a convenient box assembly with provision
for fixing to an optical table. Primary mirrors are interchangeable but should
be interferometrically aligned. An interferogram and OPD map is supplied with
every expander manufactured by Optical Surfaces Limited.
These design features, high technical specifications and wide choice of custom
options that have made the Optical Surfaces Ltd. range the beam expanders of
choice for many laboratories focusing upon high power laser, Doppler shift LIDAR
and interferometric applications.