Photonic Aggregation of Microwave Signals Based on Phase and Amplitude Control Using a Dual-Polarization Dual-Drive Mach-Zehnder Modulator
Bibliographic record
Abstract
Photonic aggregation of microwave signals using a single dual-polarization dual-drive Mach-Zehnder modulator (DP-DDMZM) is proposed and investigated experimentally. Multiple microwave signals are applied to a DP-DDMZM and modulated on a single optical carrier. Four binary phase shift keying (BPSK) microwave signals with an identical carrier frequency of 15 GHz and a symbol rate of 1 GBaud are aggregated to be a single 16 quadrature amplitude modulation (16QAM) optical signal. On the receiver side, the aggregated multiple microwave signals are decoded simultaneously by a single optical coherent receiver. A proof-of-concept experiment is conducted to verify the effectiveness of the proposed technique. The aggregation of four BPSK microwave signals with an error vector magnitude (EVM) of 7.09% is realized.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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 | 0.001 |
| 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 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".