High-bismuth-content phospho-silicate fiber for optical amplification
Bibliographic record
Abstract
We report a fiber fabrication process combining modified chemical vapor deposition and solution doping, which maximizes material retention to produce bismuth-doped fibers with high doping content. With a detectable amount of Bi at the 0.1 wt.% level, fabricated fibers exhibit low levels of background and unsaturable loss. Moreover, a flat and broad absorption profile is obtained and is attributed to a balanced level of phosphorus and silica-related bismuth active centers (BACs). Our photoluminescence results suggest excitation-dependent emission spectra, including broad luminescence under 808 and 980 nm pump wavelengths. The BPFs present a flat gain spectrum, free from OH-related absorption, reaching 34 dB peak gain with 100 nm bandwidth (>20 dB) and a noise figure (NF) in the range of 3.7 - 5.7 dB over the E- and S-band.
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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) | 0.000 | 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 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".