Overview: Laser Beam Expander is used to compress the divergence angle of the
beam by expanding the diameter of the laser beam, so it is widely
used in laser ranging system or laser focus system. The beam
through a laser beam expander features a smaller divergence angle,
which can achieve the ideal effect in long distance measurement,
and also can get smaller and higher energy beam spot in the laser
processing applications. 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 These fixed-magnification laser beam expanders are offered with
optics that have either narrowband or wideband AR coatings. General Specifications of 1064nm 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 1064nm Laser Beam Expander: | PN. | Magnification | Wavelength (nm) | Max Input Aperture (mm) | Max Eixt Aperture (mm) | Diameter (mm) | Length (mm) | Mount Thread | | LBE-2X-1064 | 2 | 1064 | 10.4 | 21.6 | 27 | 39.7 | M22×0.75 | | LBE-3X-1064 | 3 | 1064 | 10.4 | 21.6 | 27 | 68.5 | M22×0.75 | | LBE-4X-1064 | 4 | 1064 | 10.4 | 21.6 | 27 | 76 | M22×0.75 | | LBE-5X-1064 | 5 | 1064 | 10.4 | 21.6 | 27 | 71.8 | M22×0.75 | | LBE-6X-1064 | 6 | 1064 | 6 | 21.6 | 27 | 74 | M22×0.75 | | LBE-8X-1064 | 8 | 1064 | 6 | 21.6 | 27 | 68 | M22×0.75 | | LBE-10X-1064 | 10 | 1064 | 6 | 21.6 | 27 | 71.5 | M22×0.75 | | LBE-12X-1064 | 12 | 1064 | 6 | 21.6 | 27 | 77.7 | M22×0.75 | | LBE-15X-1064 | 15 | 1064 | 6 | 21.6 | 27 | 74 | M22×0.75 | | LBE-20X-1064 | 20 | 1064 | 6 | 21.6 | 27 | 83 | M22×0.75 | | LBE-22X-1064 | 22 | 1064 | 6 | 21.6 | 27 | 92.3 | M22×0.75 |
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