Fabrication and characterization of a thermo-mechanically tunable grating-assisted suspended waveguide filter
Bibliographic record
Abstract
A silicon-on-insulator (SOI) rib waveguide integrated with a Bragg grating and nickel chromium heating elements has been fabricated. The heaters enable tuning of the Bragg wavelength through a thermo-optic effect. As the temperature is increased, the Bragg wavelength also increases due to the increasing silicon refractive index and effective mode index of the guide. The device is designed so that an additional processing step can remove the buried oxide beneath the grating to form a suspended waveguide. This structure would further decrease the power input required to tune the filter, and would allow the waveguide to buckle at a critical temperature. In this work the un-released structure is fabricated and mounted in a standard dual in-line pin (DIP) package to allow optical and electrical characterization. Test results demonstrating thermo-optic tuning show a 1 nm shift in Bragg wavelength with a power input of 58 mW.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".