Optical breakdown of InGaAsP/InP based multiquantum well optical attenuators
Bibliographic record
Abstract
This work describes a technique for halting the optical breakdown process in reverse biased p-i-n structures under high optical stress before significant damage to the material can occur. The devices investigated are waveguide based InGaAsP/InP multiquantum well structures used as optical attenuators or modulators. Analysis of the devices using focused ion beam milling and scanning electron microscopy can identify the point within the device where the optical breakdown is initiated, and demonstrates that optical damage is greatly limited by this technique. The degree of damage is controlled, and is correlated to the increase in dark current measured in the device. The technique can allow for a clear understanding of how the breakdown process begins, as well as its dependence on device design. In addition, comparisons between the site where breakdown is initiated and the predicted site calculated from a finite element thermal model of the device are made.
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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 | 0.001 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.002 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 0.000 |
| Research integrity | 0.000 | 0.001 |
| 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 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".