Laser Peak Power Calculator
Professional peak power calculator for pulsed laser systems. Calculate peak power from pulse energy and pulse duration for Q-switched, mode-locked, and ultrafast laser applications. Includes safety classifications, power density analysis, and pulse characterization tools.
Pulse Parameters
Beam Parameters (Optional)
System Parameters
Peak Power Results
Primary Results
Power Density
Photon Parameters
Safety & Classification
Pulse Profile Visualization
Peak Power Calculation Formulas
Basic Peak Power
Where E_pulse is pulse energy, τ_pulse is pulse width, and f_shape is pulse shape factor.
Average Power
Where f_rep is repetition rate in Hz.
Power Density (Intensity)
Where A is beam cross-sectional area and d is beam diameter.
Fluence (Energy Density)
Energy per unit area, critical for material processing and damage thresholds.
Photons per Pulse
Where h is Planck's constant, c is speed of light, and λ is wavelength.
Pulse Shape Factors
Rectangular Pulse
Factor: 1.0
Profile: Flat-top, ideal pulse
Applications: Theoretical calculations, Q-switched lasers
Notes: Maximum efficiency, rarely achieved in practice
Gaussian Pulse
Factor: 0.94
Profile: Bell-shaped, smooth edges
Applications: Mode-locked lasers, fiber lasers
Notes: Most common in continuous wave mode-locking
Sech² Pulse
Factor: 0.88
Profile: Hyperbolic secant squared
Applications: Soliton pulses, ultrafast lasers
Notes: Natural shape for soliton propagation
Triangular Pulse
Factor: 0.5
Profile: Linear rise and fall
Applications: Gain-switched lasers
Notes: Lower peak power than rectangular
Pulsed Laser Types & Characteristics
Q-Switched Lasers
Pulse Width: 1-100 ns
Pulse Energy: μJ to J
Peak Power: kW to GW
Rep Rate: 1 Hz to 100 kHz
Applications: Material processing, range finding, medical
Mode-Locked Lasers
Pulse Width: fs to ps
Pulse Energy: pJ to μJ
Peak Power: kW to MW
Rep Rate: 10 MHz to 10 GHz
Applications: Spectroscopy, telecommunications, frequency combs
Femtosecond Lasers
Pulse Width: 10-1000 fs
Pulse Energy: nJ to mJ
Peak Power: MW to TW
Rep Rate: 1 kHz to 1 GHz
Applications: Micromachining, surgery, nonlinear optics
Picosecond Lasers
Pulse Width: 1-1000 ps
Pulse Energy: nJ to mJ
Peak Power: kW to MW
Rep Rate: 1 kHz to 1 MHz
Applications: Precision machining, time-resolved spectroscopy
Applications & Use Cases
Material Processing
Calculate peak power for laser cutting, drilling, welding, and surface modification applications.
Nonlinear Optics
Determine peak intensities for frequency conversion, supercontinuum generation, and multiphoton processes.
Spectroscopy
Optimize pulse parameters for time-resolved spectroscopy and pump-probe experiments.
Medical Applications
Calculate safe exposure limits and treatment parameters for laser surgery and therapy.
Research & Development
Design and characterize pulsed laser systems for scientific and industrial applications.
Safety Analysis
Assess laser hazards and determine appropriate safety measures and protective equipment.