Optical Surfaces Ltd. (Surrey, UK) offers laser beam expanders for high-power laser and Doppler shift LIDAR applications. Manufactured to better than lambda/10 surface accuracy, the off-axis design of the beam expanders produces no central obscuration. Alignment aids are supplied with each beam expander to ensure correct beam pointing. The all-reflecting design is achromatic and, with aluminum coatings, can operate from the UV to far IR without adjustment. The beam expanders are housed in a box assembly that provides for fixing to an optical table, and enables transportation to different sites without the need for internal realignment. Options include ultra-hard dielectric, protected silver, and gold laser coatings. Standard models include exit apertures of 100 mm, 150 mm, and 200 mm, with up to 20x magnification systems.

Photonics Tech Briefs Magazine

This article first appeared in the May, 2006 issue of Photonics Tech Briefs Magazine.

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