Diode-Bar Coupling Budget
Combine lenslet, alignment, and fiber-coupling efficiencies into a throughput budget.
Description
A coupling budget multiplies sequential stage efficiencies.
A coupling budget multiplies sequential stage efficiencies. Output brightness is simply scaled by that aggregate throughput in this model.1
Combine lenslet, alignment, and fiber-coupling efficiencies into a throughput budget.
When to use Diode-Bar Coupling Budget
Use this tool to combine lenslet, alignment, and fiber-coupling efficiencies into a throughput budget.
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 Diode-Bar Coupling Budget 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 stageEfficienciesPercent, inputBrightness using the field table and calculation rules, then run the tool.
- Read throughputPercent, outputBrightness. 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 |
|---|---|---|---|
| stageEfficienciesPercent | Coupling-stage efficiencies (%) | list of number | Required |
| inputBrightness | Input brightness | number; minimum: 0 | Required |
Enter nonempty efficiency list with every value 0–100% and nonnegative input brightness. Return throughput and scaled brightness.
throughput%=100Π(efficiency_i/100); outputBrightness=inputBrightness×throughput/100 Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| throughputPercent | Total throughput (%) | number; minimum: 0; maximum: 100 |
| outputBrightness | Output brightness | number; minimum: 0 |
{
"input": {
"stageEfficienciesPercent": [
80,
90,
50
],
"inputBrightness": 100
},
"output": {
"throughputPercent": 36,
"outputBrightness": 36
}
}Limitations and assumptions
No etendue, angular redistribution, coherence or actual radiance model is supplied.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Power-Beaming Efficiency: Calculate end-to-end optical power-beaming efficiency and power loss. For a complementary task, use Fiber Delivery Power Margin: Check fiber-delivery intensity and nonlinear phase against supplied limits.
References
-
Diode-Bar Coupling Budget — tool.io
Similar or alternative tools
- Power-Beaming Efficiency
Calculate end-to-end optical power-beaming efficiency and power loss.
- Fiber Delivery Power Margin
Check fiber-delivery intensity and nonlinear phase against supplied limits.