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.

Stretched duration (ps)

Stretched pulse duration ahead of the amplifier.

Compressed duration (fs)

Compressed pulse duration after the compressor.

Compute the chirped-pulse amplification stretch factor from stretched and compressed pulse durations. 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]

Stretch ratio

Stretch factor τ_stretched / τ_compressed.

Stretched (fs) (fs)

Stretched duration expressed in femtoseconds.

Compressed (ps) (ps)

Compressed duration expressed in picoseconds.

• 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.

• Autocorrelator Deconvolution

  Convert intensity-autocorrelator width to pulse duration with the Gaussian or sech² deconvolution factor.

• GDD Compensation Selector

  Compare required group-delay dispersion with user-supplied chirped-mirror and prism-pair capacities to select a compressor family without assuming universal thresholds.

• Diode Series-Resistor Driver Design

  Size the series resistor for a simple laser-diode driver, including pulsed-duty power and average current.