Semiconductor Mmi Splitter Excess Loss Calculator
Actual MMIexcess loss referenced to sum of all independently measured output ports, not one-port insertion loss or theoretical splitter division. Incomplete ports/measurement mismatch external; signed apparent gain retained.
Description
MMI excess loss compares total measured output-port power with matched incident power.
MMI excess loss compares total measured output-port power with matched incident power.1
Summing ports is different from reporting one port's splitting ratio or insertion loss.
When to use Semiconductor Mmi Splitter Excess Loss Calculator
Use this tool to obtain signedObservedMmiExcessLossDb from the supplied records using the stated calculation. Establish the device or material, operating point, units and independently applicable measurement or model calibration.
How to use Semiconductor Mmi Splitter Excess Loss Calculator and understand its results
- Establish the device or material, operating point, units and independently applicable measurement or model calibration.
- Enter actualOutputPortPowersWatts, matchedIncidentPowerWatts, using the field meanings and rules below, then run the tool.
- Read result.signedObservedMmiExcessLossDb. Use the units and sign conventions below, and review any unknown records separately.
- Correct any reported input issue and run again. Before using a successful result, check the stated units, signs, reference scope and observation coverage.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualOutputPortPowersWatts | Actual output port powers watts | list of number | Required |
| matchedIncidentPowerWatts | Matched incident power watts | number | Required |
Require nonnegative output-port powers and a positive matched incident power in watts. Total observed output must be positive, which also rejects an empty or all-zero list. Return ten log10(incident/summedOutput) in decibels. Output exceeding input gives a negative loss rather than a clamp; no port is silently omitted.
excessLossDb=10×log10(incidentPower/ΣoutputPortPowers) Use the matching field units and the exact boundary, ordering and reference rules above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Qualified observed calculation or explicit reference | object |
| result.signedObservedMmiExcessLossDb | Ten log10 of incident power divided by summed output-port power. | number |
{
"input": {
"actualOutputPortPowersWatts": [
2,
3
],
"matchedIncidentPowerWatts": 10
},
"output": {
"result": {
"signedObservedMmiExcessLossDb": 3.010299956639812
}
}
}Limitations and assumptions
Device structure, material state, operating conditions and calibration determine applicability. The result does not infer missing physical parameters, verify a transport mechanism or validate a fabricated device model.
Missing required fields, unknown fields, wrong types and violated rules return input issues. Numeric values and outputs must be finite. Lists and matrices must be dense, without missing cells. Numeric lists allow at most 10000 entries, subject to the narrower lengths and code rules above. Extremely large composite outputs are rejected.
Alternative or Complementary methods
For a related step, use Semiconductor Directional Coupler Coupling Length Calculator: Even and odd supermode propagation constants determine an ideal complete-transfer length. For a complementary comparison, use Semiconductor Edge Coupler Loss Vs Misalignment Calculator: Edge-coupling loss changes with alignment under a specified optical mode and geometry.
References
Similar or alternative tools
- Semiconductor Directional Coupler Coupling Length Calculator
Even and odd supermode propagation constants determine an ideal complete-transfer length.
- Semiconductor Edge Coupler Loss Vs Misalignment Calculator
Edge-coupling loss changes with alignment under a specified optical mode and geometry.