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effective beam diameter

HELIOS

HELIOS

…Specifications 50 kHz 125 kHz 50 kHz 125 kHz Pulse Width (FWHM) <0.79 ns <0.69 ns <0.95 ns <0.69 ns <0.85 ns Spatial Mode TEM 00 (M 2 < 1.25) Beam Diameter (Gaussian Fit, 1/e2) 3.5 mm 2.5 mm 2 mm Polarization Linear Jitter (between sequential pulses, gating mode) < ±2 ns Jitter (trigger to laser…

Beam Diag Broch

Beam Diag Broch

…Relative energy/power · Effective area · Peak-to-average intensity · Beam diameter/widths (selectable): - Second moment (d4Sigma) - Knife edge - Slit - Aperture diameter - Effective diameter · Divergence at % energy/power · Gaussian fits with: - Correlation coefficient - Diameter - Centroid - Peak…

Beam Diag Broch

Beam Diag Broch

…Relative energy/power · Effective area · Peak-to-average intensity · Beam diameter/widths (selectable): - Second moment (d4Sigma) - Knife edge - Slit - Aperture diameter - Effective diameter · Divergence at % energy/power · Gaussian fits with: - Correlation coefficient - Diameter - Centroid - Peak…

Microsoft Word - Understand Different Laser Beam  Rev 1 Final.doc

Microsoft Word - Understand Different Laser Beam Rev 1 Final.doc

beams of a few microns in diameter to be measured with a resolution down to 0.1µm. And because, at some point in the scan the full beam strikes the detector, accurate power and noise measurement can be taken. Like the slit scanner, the accuracy of a scan depends upon the geometry of the beam. For…

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

…as the beam quality becomes higher, the beam brightness increases. The measurement and adjustment of the beam diameter does not affect the total power being delivered by a laser beam, but does effect how the total power is concentrated. Controlling the power density or brightness of a laser beam

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

…as the beam quality becomes higher, the beam brightness increases. The measurement and adjustment of the beam diameter does not affect the total power being delivered by a laser beam, but does effect how the total power is concentrated. Controlling the power density or brightness of a laser beam

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Beam Diameter (Radius, Width) The beam diameter (generally defined as twice the beam radius, no matter what the particular definition of the beam radius is) is the most important propagation-related attribute of a laser beam. In case of a perfect top-hat (or flat-top) profile the beam diameter is…

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Beam Diameter (Radius, Width) The beam diameter (generally defined as twice the beam radius, no matter what the particular definition of the beam radius is) is the most important propagation-related attribute of a laser beam. In case of a perfect top-hat (or flat-top) profile the beam diameter is…

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

…of the beam radius (or, diameter). Sometimes, full angles are used which results in twice as high angles. Therefore, some caution seems to be appropriate when it comes to a laser's divergence specification. Beams with a very small divergence, i.e. with an almost constant beam diameter over a…

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

…of the beam radius (or, diameter). Sometimes, full angles are used which results in twice as high angles. Therefore, some caution seems to be appropriate when it comes to a laser's divergence specification. Beams with a very small divergence, i.e. with an almost constant beam diameter over a…

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

…of the beam radius (or, diameter). Sometimes, full angles are used which results in twice as high angles. Therefore, some caution seems to be appropriate when it comes to a laser's divergence specification. Beams with a very small divergence, i.e. with an almost constant beam diameter over a…

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

Microsoft Word - Understanding Laser Beam Parameters Leads to Better System Performance and Can Save Money Final.doc

…across the beam area. For example, in a material processing situation, it is easily understandable why two beams of identical power and diameter (or contour) leave different burn marks on a substrate if one beam features a Gaussian profile (maximum intensity in the beam center) while the other beam

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