Saturation Crossover Frequency
Calculate the saturated-absorption crossover frequency between two transitions.
Description
A saturated-absorption crossover estimate places a resonance halfway between two supplied transition frequencies.
A saturated-absorption crossover estimate places a resonance halfway between two supplied transition frequencies. Separation is reported independently.1
Calculate the saturated-absorption crossover frequency between two transitions.
When to use Saturation Crossover Frequency
Use this tool to calculate the saturated-absorption crossover frequency between two transitions.
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 Saturation Crossover Frequency 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 firstTransitionMegahertz, secondTransitionMegahertz using the field table and calculation rules, then run the tool.
- Read crossoverFrequencyMegahertz, separationMegahertz. 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 |
|---|---|---|---|
| firstTransitionMegahertz | First transition frequency (MHz) | number | Required |
| secondTransitionMegahertz | Second transition frequency (MHz) | number | Required |
Enter finite transition frequencies in MHz; signed offsets are accepted. Return midpoint and absolute separation.
crossover=(f1+f2)/2; separation=|f2−f1| Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| crossoverFrequencyMegahertz | Crossover frequency (MHz) | number |
| separationMegahertz | Transition separation (MHz) | number; minimum: 0 |
{
"input": {
"firstTransitionMegahertz": 100,
"secondTransitionMegahertz": 120
},
"output": {
"crossoverFrequencyMegahertz": 110,
"separationMegahertz": 20
}
}Limitations and assumptions
No line strengths, selection rules or actual crossover visibility are evaluated.
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 Praseodymium Line Match: Match a requested wavelength to caller-supplied praseodymium fiber lines. For a complementary task, use Wavelength-Lock Selector: Select an absorption-cell, etalon, or hybrid wavelength lock from supplied requirements.
References
-
Saturation Crossover Frequency — tool.io
Similar or alternative tools
- Praseodymium Line Match
Match a requested wavelength to caller-supplied praseodymium fiber lines.
- Wavelength-Lock Selector
Select an absorption-cell, etalon, or hybrid wavelength lock from supplied requirements.