Experimental investigations of the effect of the mode-hopping on the noise properties of InGaAsP fabry-perot multiple-quantum-well laser diodes
Bibliographic record
Abstract
Detail studies of the optical and electrical low-frequency noise spectra and their correlation factor of graded-index separate-confinement-heterostructure, multiple-quantum-well (MQW) strained-layer Fabry-Perot (FP) InGaAsP/InP laser diodes have been carried out. It is shown that at defined DC currents and temperatures the intensive Lorentzian-type optical and electrical noise peaks (mode-hopping effect) of the FP lasers may be caused by different effects, since the correlation factor between the noises may be positive, negative, or close to zero, i.e., the diode terminal voltage (or resistance) and light output power can fluctuate in phase, in opposite phases or independently. It is determined that the shift of noise peak due to variation of temperature has an activated character. The activation energy is equal to nearly half the bandgap energy of the barrier layer or region, adjacent to the active region of the laser. It was also shown that coating the FP laser diode mirrors by a thin dielectric layer causes a substantial suppression of the mode-hopping effects, with only a small change of the light output power: i.e., the noise peaks are strongly related to the charge carrier and photon confinement in the active region and neighboring to the active regions.
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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".