Manufactured to better than lambda/10 surface accuracy, the off-axis design of OSL beam expanders produces no central obscuration and efficient transmission unspoilt by spider diffraction patterns
Laser beam expanders from Optical Surfaces are designed to be easy to use and to provide accurate, unobstructed and achromatic expansion of any collimated input source.
Alignment aids are supplied with each beam expander to ensure correct beam pointing.
The all-reflecting design of OSL beam expanders is achromatic and with aluminium coatings can operate from the UV to far IR without adjustment.
Using zero expansion glass mirror substrates OSL beam expanders provide high operational stability.
In addition to its standard range of products, Optical Surfaces is also able to provide custom beam expanders optimally tailored to suit exact needs.
For high power laser experiments that demand the highest reflectivity and high damage threshold, ultra-hard dielectric, protected silver and gold laser coatings are available.
Where applications require operation over a wide temperature range athermalised beam expanders can be supplied.
Specialist beam expanders requiring larger aperture (up to 400mm) or higher magnification (up to 100x) operation have been manufactured, tested and delivered to customers around the world.
Both horizontal and vertical beam displacements are offered, to suit customer choice.
Custom beam expanders with a focusing capability for a given far field can be supplied to provide optimised performance in Lidar applications.
Optical Surfaces also offers an alternative beam expander design using two off-axis parabola with a common focus to provide optimised performance in Fizeau applications.
OSL beam expanders are housed in a convenient box assembly that offers provision for fixing to an optical table and enables transportation to different sites without the need for internal realignment.
Test interferograms and an OPD map are supplied with every beam expander supplied by Optical Surfaces .
Optical Surfaces ISO 9001-2000 approved manufacturing facility provides the flexible resources to supply from single specialist requirements to OEM quantities.
