Semiconductor Silicon Photonics Waveguide Bending Loss Calculator
Extract actual excess bent-versus-straight waveguide insertion loss per observed bend, signed gains retained; not generic attenuation×length or radius prescription.
Description
Excess bend loss compares a bent guide with a matched straight reference.
Excess bend loss compares a bent guide with a matched straight reference.1
Dividing the logarithmic power difference by the observed bend count yields a per-bend observation.
When to use Semiconductor Silicon Photonics Waveguide Bending Loss Calculator
Use this tool when you need to reproduce the stated calculation from measured records or independently selected model inputs. Prepare measured device or specimen records under independently matched branch, temperature, frame, and unit conventions.
How to use Semiconductor Silicon Photonics Waveguide Bending Loss Calculator and understand its results
- Prepare measured device or specimen records under independently matched branch, temperature, frame, and unit conventions.
- Enter observedBentGuideThroughPowerWatts, observedMatchedStraightGuideWatts, observedBendCounts, following the field table and rules below, then run the tool.
- Read observedExcessBendingDbPerBend. Use the output meanings below to interpret units, signs, flags, and any nested result fields.
- Correct reported input issues and run again. For a successful result, check the stated evidence coverage and assumptions before using it in your review.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| observedBentGuideThroughPowerWatts | Observed bent guide through power watts | list of number | Required |
| observedMatchedStraightGuideWatts | Observed matched straight guide watts | list of number | Required |
| observedBendCounts | Observed bend counts | list of number | Required |
Use aligned nonempty positive bent and straight powers in watts and integer bend counts from one to one million. Calculate −10 log10(bent/straight) divided by count. Apparent gain produces a negative loss and is retained.
lossDbPerBend_i=−10log10(P_bent_i/P_straight_i)/bendCount_i Symbols follow the input and output meanings and the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| observedExcessBendingDbPerBend | Observed excess bending db per bend | list of number |
{
"input": {
"observedBentGuideThroughPowerWatts": [
0.8,
0.5
],
"observedMatchedStraightGuideWatts": [
1,
1
],
"observedBendCounts": [
2,
1
]
},
"output": {
"observedExcessBendingDbPerBend": [
0.484550065040282,
3.010299956639812
]
}
}Limitations and assumptions
Matched measurement branch, material state, calibration, and conventions must be independently established. Results do not certify device performance or operating conditions.
Missing required fields, unknown fields, wrong types, and violated calculation rules are input issues. Numeric values must be finite; nonfinite results are rejected. Evidence arrays must be dense, with no missing cells. Numeric observation lists allow at most 10,000 entries, subject to any smaller bounds stated above.
Alternative or Complementary methods
For a related review, use Semiconductor Silicon Photonics Grating Coupler Efficiency Calculator: Measured grating coupling includes the remaining optical path’s transmission. Reporting raw and path-corrected ratios makes that independent correction visible. For a complementary step, use Semiconductor Plasmonic Propagation Length Calculator: An intensity decay fit defines a plasmonic propagation length at the 1/e intensity level. Using intensity rather than field amplitude fixes the factor-of-two convention.
References
Similar or alternative tools
- Semiconductor Silicon Photonics Grating Coupler Efficiency Calculator
Measured grating coupling includes the remaining optical path’s transmission. Reporting raw and path-corrected ratios makes that independent correction visible.
- Semiconductor Plasmonic Propagation Length Calculator
An intensity decay fit defines a plasmonic propagation length at the 1/e intensity level. Using intensity rather than field amplitude fixes the factor-of-two convention.