Use this laser calculation or lookup for a first-pass optics, pulse, beam, gain-medium, diode, fiber, or safety comparison under explicitly stated wavelength and operating conditions.

Doping (at.%)

Ytterbium doping of the disk.

Thickness (µm)

Disk thickness.

σ_abs (cm²)

Pump absorption cross-section at 941 nm.

Pump passes

Number of times the pump traverses the disk.

Overlap fraction

Fraction of the pump that overlaps the doped spot each pass.

Compute single-pass and multipass pump absorption of an Yb:YAG thin disk for the given doping, thickness and pass count. The tool evaluates the supplied inputs together and returns the named outputs below; it does not infer omitted operating conditions or change the units shown.^[1]

Single pass (%)

Absorption of one transit through the disk.

Total absorption (%)

Absorption accumulated over all passes.

• Laser behavior depends on wavelength, mode, coherence, pulse shape, beam quality, cavity and optical losses, material data, temperature, alignment, nonlinear effects, damage thresholds, and measurement definitions. Lookup values are not substitutes for current device data or laser-safety analysis.
• Use finite inputs in the displayed units and preserve more precision than the final presentation requires. Independently verify safety-critical, financial, compliance, or production decisions.

Verify constants and limits with primary literature and manufacturer data, propagate tolerances, model the complete optical train, and apply the relevant laser safety standard.

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