Beam Expander
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A beam expander is any optical system designed
to increase the diameter of a laser beam. In most cases, the term is taken to mean
a telescope designed to take a small-diameter collimated beam input beam and produce
a larger diameter collimated output beam, thus reducing the divergence of the beam.
The beam expander consists of a negative input lens and a positive objective. The
expansion factor is the ratio of the focal length of the two lenses.
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Features
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Applications
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Low power loss
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Precision laser machining:
capable to provide a high power density focal spot.
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Good output collimation
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Able to withstand laser
power of more than 1000 W
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Laser range finder:
capable to provide a highly collimated beam.
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Adjustable divergence
angle of 18 to 32 mrad with the variable beam expanders
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Combining with a spatial
filter, able to modify laser power distribution.
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BE Series Beam Expander for Beam Size of ≤4mm Diameter
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Specifications
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BEW Series Beam Expander for Beam Size of
4-10mm Diameter
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BEW-2x
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BEW-3x
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BEW-5x
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BEW-10x
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Note: These series beam
expander are offered for UV, visible and infrared lasers respectively. Please let
me know which wavelength you want before order.
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