Stochastic characteristics of stimulated Brillouin scattering in Q-switched fiber lasers
Bibliographic record
Abstract
The stimulated Brillouin scattering (SBS) is a major limitation of maximum output power extracted from a high-power fiber laser. Compared with the SBS in passive optical fibers, the formation and evolution of the Brillouin-Stokes waves in Q-switched fiber lasers are more complicated. In this work, the stochastic characteristics of the SBS pulses generated in Q-switching processes were investigated experimentally and theoretically. In the experiments, we measured the temporal and spectral outputs of a Q-switched ytterbium-doped double-clad fiber laser; while in the theory, using the proposed theoretical model of the Q-switched fiber laser in conjunction with the SBS, we investigated the stochastic characteristics of the signal and Stokes pulses and showed their mutual conversions in Q-switching processes. The experimental and theoretical results are consistent with each other.
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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 | 0.001 | 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".