Overview: A Laser Beam Expander will increase the input laser beam by a
specific expansion power while decreasing the divergence by the
same expansion power, resulting in a smaller collimated beam at a
large distance. Laser beam expanders can also be used in reverse to
reduce beam diameter rather than expanding it. Star Optic offers Beam Expanders can expand or reduce the diameter
of a collimated beam by a factor of 2, 3, 5, 10, or 20. These
Galilean beam expanders use a low-aberration, air-spaced design
optimized to provide a wavefront error of less than λ/4 (i.e.,
diffraction-limited performance) and minimize the impact on the M2
value of the expanded beam. An expanded beam can be focused to a
narrow diffraction-limited waist, which can be necessary for use
with optics or instruments that have narrow input apertures We can provide either narrowband or broadband AR coatings
besides 532nm wavelength for these fixed-magnification
laser beam expanders. General Specifications of 532nm Laser Beam Expander: | Material | N-BK7 or UV Fused Silica | | Mount Material | Black Anodized Aluminum | | Transmitted Wavefront Distortion | λ/4 @632.8nm (RMS) | | Surface Quality | 60/40 scratch-Dig | | Mount Thread | M22x0.75mm | | Coating | Multi Layer AR Coating Total Transmission >98%@Design Wavelength | | Damage Threshold | >5J/cm2, 20ns, 20Hz, @1064nm |
Standard Products Of 532nm Laser Beam Expander: | PN. | Magnification | Wavelength (nm) | Max Input Aperture (mm) | Max Eixt Aperture (mm) | Diameter (mm) | Length (mm) | Mount Thread | | LBE-2X-532 | 2 | 532 | 10.4 | 21.6 | 27 | 46.5 | M22×0.75 | | LBE-3X-532 | 3 | 532 | 10.4 | 21.6 | 27 | 66.5 | M22×0.75 | | LBE-4X-532 | 4 | 532 | 10.4 | 21.6 | 27 | 74 | M22×0.75 | | LBE-5X-532 | 5 | 532 | 10.4 | 21.6 | 27 | 70.2 | M22×0.75 | | LBE-6X-532 | 6 | 532 | 6 | 21.6 | 27 | 71.8 | M22×0.75 | | LBE-7X-532 | 7 | 532 | 6 | 21.6 | 27 | 64 | M22×0.75 | | LBE-8X-532 | 8 | 532 | 6 | 21.6 | 27 | 68 | M22×0.75 | | LBE-10X-532 | 10 | 532 | 6 | 21.6 | 27 | 77.7 | M22×0.75 | | LBE-12X-532 | 12 | 532 | 6 | 21.6 | 27 | 72 | M22×0.75 | | LBE-15X-532 | 15 | 532 | 6 | 21.6 | 27 | 81.2 | M22×0.75 |
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