All-Optical Reconfigurable Signal Processing Based on Cross Phase Modulation Time Lensing
Why this work is in the frame
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Bibliographic record
Abstract
A system is proposed for all-optical reconfigurable time-to-frequency (T-to-F) conversion and temporal magnification of optical waveforms using a design based on a cross phase modulation-induced time lens combined with group-velocity dispersion. In this design, the T-to-F conversion ratio and magnification factor can be easily tuned by exploiting the direct dependence of the time-lens chirp with the peak power of a parabolic pump pulse. In a proof-of-concept experiment, T-to-F conversion and temporal magnification of picosecond optical waveforms are demonstrated using a fiber-optics scheme, where the T-to-F conversion and magnification factors are effectively tuned over a twofold range by controlling the gain of an optical amplifier. The same system can be additionally adjusted to provide a time-mapped Fourier transform of the input waveform.
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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 | 0.001 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.001 | 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 it