Investigation of partially coherent interaction in fiber Bragg grating stabilized 980-nm pump modules
Bibliographic record
Abstract
Partially coherent interaction of feedback light with the field in the laser cavity is affirmed with fiber Bragg grating (FBG) stabilized 980-nm pump lasers, in contrast to the normally accepted totally incoherent state of interaction. A coherence parameter /spl gamma/ was defined to identify the fraction of feedback light interacting coherently. /spl gamma/ was determined by fitting the measured power-difference versus pumping-rate curve to the simulation results. From the fits, it is found that coherence parameter /spl gamma/ decreases when the distance between the FBG and the laser facet increases and vice versa. The relationship between /spl gamma/ and the spectral bandwidth of the reflectivity of the feedback element was also investigated. This work is important to understand and improve the characteristics of FBG stabilized 980-nm pump modules.
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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".