USP 0.5x - 1.7x
Zoom Beam Expanders
Features:
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Diffraction limited performance
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for Ø4~9 mm beams
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​Expansion range 0.5x-1.7x
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343, 355, 515, 532, 1030, 1064 nm
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Sliding lens design
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<200 µrad beam wander
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Lenses made from fused silica
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No internal foci
LIDT:
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>25 J/cm2 @ 1064 nm, 10 ns, 100 Hz
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>10 J/cm2 @ 532 nm, 10 ns, 100 Hz
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>5 J/cm2 @ 355 nm, 10 ns, 100 Hz
Standard items
Description
Beamera presents ultra short pulse variable laser beam expander for high power lasers. It features three main advantages that help to stand out from the competition:
· Only 7.5mm if dielectric thickness makes sure device introduces minimum Group Delay dispersion
· Compatible with 50 fs pulses and below
· Collimation is maintained during expansion adjustment.
Variable expander features x0.5 to x1.7 range, that can be continuously zoomed along the range. Product is available for 1-st, 2-nd & 3-rd harmonics of both Neodymium and Ytterbium laser lines. Divergence adjustment solution is embedded in the system to allow for smooth and fine divergence adjustment compensation, which is crucial in laser machining process fine-tuning.
Expander is designed to comply strict stability, longevity, and robustness requirements that are inflicted by industrial lasers applications, which makes it suitable for both – industrial and demanding scientific use.
It is advised to consider high power beam expander design if average power exceeds the following values:
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1st harmonic >100W;
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2nd harmonic >50W;
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3rd harmonic >10W.
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LIDT in ns regimes:
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>25 J/cm² @ 1064 nm, 10 ns, 100 Hz
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>10 J/cm² @ 532 nm, 10 ns, 100 Hz
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>5 J/cm² @ 355 nm, 10 ns, 10 Hz
LIDT with ultrafast pulses:
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>3.7 J/cm² @ 1030 nm, 10 ps, 10 kHz
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>1 J/cm² @ 515 nm, 10 ps, 10 kHz
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>0.5 J/cm² @ 343 nm, 1 ps, 1 kHz
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