Beam Expanders

Optics & Photonics

Variable Laser Beam Expander provides continuous magnification.

June 6, 2014

Available in 1X–3X or 2X–8X magnification ranges for 532 or 1,064 nm or broadband visible wavelengths, TECHSPEC® Variable Beam Expanders offer continuous magnification for laser applications where magnification changes may be required. Galilean designs feature 1/4 λ transmitted wavefront, and AR coatings ensure maximum transmittance while minimizing ghost reflections. Non-rotating internal translation and focusing mechanisms continuously adjust magnification and laser divergence. Read More

Optics & Photonics

Beam Expanders/Reducers enhance wavefront system capabilities.

April 9, 2013

Beam expanders and reducers are available to enhance capabilities of Shack-Hartmann Complete Light Analysis System (CLAS-2D) wavefront aberrometers, which operate with light sources from 193–1,700 nm. Standard expanders and reducers allow beam measurement up to 60 mm, but larger, custom beam reducers can also be designed. Uses include wind tunnel turbulence applications, wind shear testing, beam analysis, large mirror surface topology, and complex alignment/analysis applications. Read More

Optics & Photonics

Beam Expander includes diffraction limited optical designs.

April 23, 2008

Featuring large output clear apertures of 10-100 mm, expansion ratios from 5x to 40x, and input apertures of 1.3-20 mm, laser beam expanders provide adjustable focus for collimation at varying wavelengths, which can be used for divergence correction, collimation, and focusing. With damage thresholds of 500 MW/cm² typical, they can be specified at single and dual wavelengths from 248-1,550 nm. Rugged and self-supporting units have aluminum construction to minimize thermal distortion. Read More