研究目的
To present a power-efficient and reduced-complexity all-optical approach to generate high-bit rate superchannels, based on joint time-frequency multiplexing.
研究成果
The study demonstrates a flexible and power-efficient approach to optical networking, capable of generating high-bit rate superchannels through joint time-frequency multiplexing. The use of FrFT allows for significant flexibility in signal processing, enabling the reception of signals in both parallel and series formats.
研究不足
The approach may have limitations in terms of scalability and adaptability to different network conditions and configurations.
1：Experimental Design and Method Selection:
The methodology involves generating and processing both optical OFDM and N-OTDM signals using a WSS, employing the FrFT for flexibility in optical networking.
2：Sample Selection and Data Sources:
The experiment uses a 10-GHz mode locked laser diode (MLLD) with 1.5 ps pulse width and 193.245 THz center frequency, modulated by 10 Gb/s pseudo random bit sequence (PRBS).
3：5 ps pulse width and 245 THz center frequency, modulated by 10 Gb/s pseudo random bit sequence (PRBS).
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Equipment includes a WSS (Finisar 4000S and 1000S), Erbium-doped fiber amplifier (EDFA), dispersion compensation module (DCM), and LiNbO3 intensity modulator (LN-IM).
4：Experimental Procedures and Operational Workflow:
The signal is transmitted through an 89.2-km JGN-X test bed, with dispersion compensated by DCM. The received signal is processed by a WSS and time-gated by an LN-IM.
5：2-km JGN-X test bed, with dispersion compensated by DCM. The received signal is processed by a WSS and time-gated by an LN-IM.
Data Analysis Methods:
5. Data Analysis Methods: The performance is evaluated based on bit error rate (BER) and peak-to-average power ratio (PAPR) measurements.
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