Peak Power & Fluence calculator
Peak power, pulse energy and fluence from average power.
Category: Laser & Ultrafast
Formula: Ep = Pavg/frep · Ppk = Ep/τ
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| Avg power | Pavg | mW | 100 |
| Rep rate | frep | MHz | 80 |
| Pulse width | tau | fs | 100 |
| Spot Ø | D | µm | 50 |
Result with the default inputs
- Pulse energy: 1.25 nJ
- Peak power (Ep/τ): 12.5 kW
- Peak power (Gaussian): 11.743 kW
- Fluence (avg over Ø): 0.0637 mJ/cm²
- Peak fluence (Gaussian): 0.1273 mJ/cm²
Open it with your own values: put each input in the address as a parameter, for example /calculators/peak-power-fluence?Pavg=100. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Pulse (signal processing), Pulse shapes