Self-Start Wide Tuning Mode-Locked Fiber Laser at 2µm Spectral Region
Bibliographic record
Abstract
Introducing a wideband tunable mode-locked fiber laser operating in the spectral range from 1856 to 2000 nm, with a 3.5 MHz repetition rate and over 5 mW average power from the seed fiber laser. It utilizes 2 m Thulium-Holmium co-doped fiber (THF) as the gain medium, incorporating a semiconductor saturable absorber mirror (SESAM) for passive mode-locking. This laser system achieves exceptional wavelength tunability while maintaining a low repetition rate. The self-starting nature ensures stable operation, with an average pulsewidth of 1.5 ns. The low repetition rate makes it suitable for time-resolved measurements and nonlinear frequency conversion. The laser's wide wavelength tunability, narrow linewidth, and low repetition rate make it valuable for scientific and industrial applications, including spectroscopy, gas sensing, and ultrafast photonics.
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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 | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| 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 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".