Dual-Wavelength Polarization Independent Grating Coupler Design Based on Silicon-on-Insulator
Bibliographic record
Abstract
Silicon photonics has emerged as one of the most popular areas in integrated optics because of its compatibility with CMOS fabrication processes and its potential for low cost and mass production.To enable efficient fiber-to-chip coupling of light, one key component is a grating coupler.With an increasing demand for wavelength-divisionmultiplexing systems in fiber-to-the-home network services, low-cost dual-band (O-and C-bands) chip transceivers are required.In this thesis, the universal design methodology of conventional and subwavelength grating couplers has been presented.Firstly, a vertical incident wavelength splitting grating coupler that can split 1310 nm and 1550 nm wavelength light into two directions is shown.Afterward, a polarization splitting grating coupler that can work for both C-and O-band with a flexible incident angle is also demonstrated.In the last part of this thesis, a novel dual-band subwavelength polarization independent grating coupler works as a wavelength demultiplexer is proposed.It has transmissions of ~30% and 3-dB bandwidths of 80-100 nm for both TE and TM polarizations of O-and C-band.
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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 | 0.001 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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".