Inverse-Designed Tellurite Devices for Polarization Control
Bibliographic record
Abstract
Tellurite glasses are of high interest in integrated photonics for sensing and, in particular, telecommunications applications, where they serve as key materials for amplification and mid-IR light sources due to their wide transparent window, thermal and mechanical stability, and high optical nonlinearity. In this work, we present two inverse-designed devices for polarization management on a tellurium dioxide platform: a TM-pass polarizer and a polarization beam splitter. The TM-pass polarizer achieves an average simulated transmission efficiency of −0.6 dB and an polarization crosstalk below −20.9 dB across the entire C-band, with a footprint of only 24μm×6 μm. The polarization beam splitter has an ultra-compact footprint of 28μm×6μm and achieves average TM and TE transmission efficiencies of approximately −0.4 dB, with crosstalk below −18.3 dB and −27.2 dB, respectively. These are the first freeform devices demonstrated on a tellurium dioxide platform, exhibiting strong robustness to fabrication variations and showcasing the versatility of the platform beyond nonlinear applications.
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How this classification was reachedexpand
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) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| 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 itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, 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".