Design and Simulation of an Integrated Fiber-to-Chip Coupler for Silicon-on-Insulator Waveguides
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Bibliographic record
Abstract
We report a novel design for a monolithically integrated fiber to silicon-on-insulator (SOI) waveguide coupler. The structure consists of a relatively large silicon block on top of a submicrometer dimensional silicon rib waveguide. The block and the waveguide are separated by a thin oxide layer, which acts as an efficient etch stop during fabrication. The optical facet is 5times5 mum (the cross-sectional area of the block at the device edge) and hence provides an efficient overlap with the optical mode of commercially available tapered fiber. By matching the effective index of the block and the underlying rib waveguide we show that efficient coupling of optical signal can be achieved. Simulations using the beam propagation technique suggest that >90% efficiency can be maintained for all reasonable manufacturing tolerances
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Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| 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) | 0.000 | 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 it