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.

Pump duration (ns)

Transverse discharge pump pulse duration.

Explain N2 337 nm self-terminating operation from the ~40 ns upper-state lifetime relative to the pump pulse duration. 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]

Upper lifetime (ns)

Nominal upper-state lifetime.

Wavelength (nm)

N2 laser wavelength.

Self-terminating

Whether the transition self-terminates.

Pump within lifetime

Whether the supplied pump duration is no longer than the nominal upper-state lifetime.

Note

Pumping guidance for the lifetime.

• 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.

• Er-Fiber Eye-Safety Classification

  Classify a wavelength by the ocular tissue that absorbs it and explain why 1550 nm Er-fiber light carries the 'eye-safe' label.

• Attosecond Streaking Window

  Compare an XUV burst duration with the IR half-cycle λ/(2c) while keeping this timing screen separate from streaking phase-retrieval feasibility.

• Autocorrelator Deconvolution

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