Laser Power Calculator
Enter gain, losses, and pump power. The Laser Power Calculator instantly computes output power, threshold power, and efficiency for continuous-wave lasers.
About the Laser Power Calculator
The Laser Power Calculator is a precise, scientifically accurate tool that computes continuous-wave laser output power, threshold power, slope efficiency, and other key parameters using the standard Rigrod model and rate equations from laser physics. This Laser Power Calculator implements formulas used in every laser engineering textbook and research paper. Proudly supported by Agri Care Hub.
Scientific Formulas
Output power: P_out = (T / (T + L)) × (P_pump - P_th)
Threshold pump power: P_th = P_sat × (T + L)/2
Slope efficiency η_s = T / (T + L)
Why This Calculator Is Essential
Laser power calculation is fundamental in: • Laser design and optimization • Optical engineering and photonics • Medical lasers (surgery, dermatology) • Industrial material processing • Scientific research (spectroscopy, pumping) • Defense and telecommunications Accurate prediction of output power, threshold, and efficiency is critical for system performance and cost.
How to Use
- Enter small-signal gain G₀ (typically 1.5–10).
- Enter output coupler transmission T and internal loss L (in %).
- Enter pump power and saturation power.
- Click “Calculate Laser Power”.
When Should You Use This Tool?
- Laser cavity design
- Pump power optimization
- Efficiency analysis
- Threshold condition verification
- Teaching laser physics
- Research and development
Scientific Foundation
All calculations follow the Rigrod model for four-level lasers and standard rate equations. The formulas are exact in the steady-state limit and widely used in industry and academia. Full theory at Laser Power on Wikipedia and Siegman’s *Lasers* (1986).
Conclusion
The Laser Power Calculator brings professional laser engineering tools to your browser — with perfect accuracy and beautiful design. Whether you’re a student learning laser physics, a researcher optimizing a cavity, or an engineer building a laser system, this tool delivers precise results every time. For more physics tools, visit Agri Care Hub.