VECSEL Frequency Doubling
Calculate externally frequency-doubled VECSEL power, wavelength, and residual fundamental power.
Description
Frequency doubling halves fundamental wavelength and allocates power according to a supplied external conversion percentage.
Frequency doubling halves fundamental wavelength and allocates power according to a supplied external conversion percentage. Residual fundamental power is the arithmetic remainder.1
Calculate externally frequency-doubled VECSEL power, wavelength, and residual fundamental power.
When to use VECSEL Frequency Doubling
Use this tool to calculate externally frequency-doubled VECSEL power, wavelength, and residual fundamental power.
Prepare the optical measurements, geometry, fitted coefficients or caller-selected thresholds requested. Confirm wavelength, radius/diameter, pulse-width, angle and unit conventions before running the calculation.
How to use VECSEL Frequency Doubling and understand its results
- Prepare the optical measurements, geometry, fitted coefficients or caller-selected thresholds requested. Confirm wavelength, radius/diameter, pulse-width, angle and unit conventions before running the calculation.
- Enter fundamentalPowerWatts, externalConversionEfficiencyPercent, fundamentalWavelengthNanometers using the field table and calculation rules, then run the tool.
- Read secondHarmonicPowerWatts, secondHarmonicWavelengthNanometers, residualFundamentalPowerWatts. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| fundamentalPowerWatts | Fundamental power (W) | number; minimum: 0 | Required |
| externalConversionEfficiencyPercent | External doubling efficiency (%) | number; minimum: 0; maximum: 100 | Required |
| fundamentalWavelengthNanometers | Fundamental wavelength (nm) | number; minimum: 0 | Required |
Enter nonnegative power and wavelength with conversion from 0 to 100 percent. Return harmonic power/wavelength and residual.
SHpower=P×efficiency/100; SHλ=λ/2; residual=P−SHpower Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| secondHarmonicPowerWatts | Second-harmonic power (W) | number; minimum: 0 |
| secondHarmonicWavelengthNanometers | Second-harmonic wavelength (nm) | number; minimum: 0 |
| residualFundamentalPowerWatts | Residual fundamental power (W) | number; minimum: 0 |
{
"input": {
"fundamentalPowerWatts": 10,
"externalConversionEfficiencyPercent": 40,
"fundamentalWavelengthNanometers": 1000
},
"output": {
"secondHarmonicPowerWatts": 4,
"secondHarmonicWavelengthNanometers": 500,
"residualFundamentalPowerWatts": 6
}
}Limitations and assumptions
Efficiency is not calculated from crystal properties. Other losses and cavity dynamics are excluded.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Third-Harmonic Output: Estimate cubic third-harmonic output and cap it at input power. For a complementary task, use SHG Phase Match: Calculate SHG-style phase mismatch, coherence length, and normalized conversion efficiency.
References
-
VECSEL Frequency Doubling — tool.io
Similar or alternative tools
- Third-Harmonic Output
Estimate cubic third-harmonic output and cap it at input power.
- SHG Phase Match
Calculate SHG-style phase mismatch, coherence length, and normalized conversion efficiency.