Task · Implementation / optimization · v2-canonical-j-diagnostic-gate

α-Si/Si₃N₄ Grating-v0

α-Si/Si3N4 SWG Grating Coupler Implementation/Optimization

Implement and optimize the apodized α-Si/Si₃N₄ SWG grating at 1310 nm. Trusted FDTD measures coupling loss and both bandwidths against the paper-derived reference envelope.

Single-task runCodex · GPT-5.6-sol
Valid
Reporting score S · baseline-normalized0.4329
Official score J · lower is better3.6202

J_baseline = 1 dimensionless · reference implementation-jbaseline-2026-09-04-v3. S = 1 means baseline parity; native evaluator gates, not S alone, determine score eligibility.

The eligible final J is bound to the trusted evaluator manifest and exact Drive archive. This single-task result does not grant task-release or official campaign authority.

Agent · model
Codex · GPT-5.6-sol
Finished
23 Sept 2026 01:21 UTC
Wall-clock duration
2 h 00 m 29 s
Probe budget
25 used / 30 configured
Agent timeout
2 h 00 m
Reasoning effort
medium
Final source digest
8ba3679e7ed3

The final submission cleared every trusted gate and was scored.

Individually approved single-task run, not an official campaign result or task-release certification. The final score and intermediate probes come from the retained trusted evaluator evidence. Download the verified run archive (HDF5 intentionally excluded).

Final learner design · Codex · GPT-5.6-sol

α-Si / Si₃N₄ SWG grating coupler

The 20-trench grating and 660 air apertures come from the final evaluated GDS. The input region and layer stack are evaluator-owned context, not additional learner geometry or simulated fields.

Final learner design

Final evaluated GDS apertures · fixed stack shown schematically

Fit
20 scored trench rows · 660 apertures. Original GDS preview.Final source 8ba3679e7ed3 · SVG preview 02f135adaceb
Evidence chain

Why this result is reported this way

01 · InfrastructureValid

The trusted evaluation transaction completed with a valid infrastructure boundary.

02 · Geometry checksDesign valid

Native evaluator geometry validation; this is not a foundry DRC or LVS sign-off.

03 · Final eligibilityEligible

The exact final submission cleared the trusted gate sequence.

04 · Score publicationJ and S published

Official J is authoritative; baseline-normalized S is shown only after score eligibility.

How to interpret this result

A valid outcome means the submitted artifact cleared the evaluator gates recorded for this archived run. It does not imply that every possible physical specification, fabrication condition, or later task revision has been independently re-tested.

Run trajectory · Codex · GPT-5.6-sol

Reporting score S vs. time

S is derived from each eligible raw J at its observed elapsed time. Hollow baseline markers are unscored attempts, not S = 0.

Probeindividual scoreFinalevaluationBest so farcumulative maximum