Single Harmonically Driven Electroabsorption Modulator for OTDM Demultiplexing
Bibliographic record
Abstract
Optical demultiplexing from 160 Gbit/s to 10 Gbit/s in a single lumped, electrically driven electroabsorption modulator (EAM) is experimentally presented. A quantum-dash Fabry-Pèrot mode-locked-laser is used to sub-harmonically extract a clock signal from the 160 Gbit/s data stream. A drive signal consisting of a series of harmonics of the recovered clock signal enables error-free demultiplexing of all channels in a 160 Gbit/s single-polarization optical time division multiplexing (OTDM) signal. This technique is quasi-analytically compared with the conventional approach of cascading two EAMs when performing 160 Gbit/s to 10 Gbit/s demultiplexing. The analysis reveals that using a single, harmonically driven EAM can result in lower penalties with respect to both degradations of the extinction ratio and width of pulses used in the OTDM signal.
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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 | 0.001 | 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 | 0.001 |
| 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".