研究目的
Investigating the implementation of reconfigurable temporal Fourier transformation (TFT) and temporal imaging (TI) using a time lens followed by a section of dispersive fiber.
研究成果
The proposed scheme successfully demonstrates reconfigurable TFT and TI by altering the length of the dispersive fiber following a time lens. This provides a practical alternative for obtaining both the real-time spectrum profile and the scaled waveform profile of the input signal.
研究不足
The technique may have limitations in achieving temporal imaging around the Fourier transformation point of the time lens due to the imaging condition not being satisfied.
1：Experimental Design and Method Selection:
The scheme involves a time lens followed by a section of dispersive fiber. The output waveforms are achieved by changing the length of the fiber.
2：Sample Selection and Data Sources:
The input signal is a pulse stream encoded as '1101'.
3：1'. List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: Includes a mode-locked pulse source, highly nonlinear fiber (HNLF), programmable spectral pulse shaper, dispersion compensation fiber (DCF), single mode fiber (SMF), and an optical sampling oscilloscope.
4：Experimental Procedures and Operational Workflow:
The signal is processed through the time lens and dispersive fiber, with the output waveform analyzed based on the fiber length.
5：Data Analysis Methods:
The output waveforms are analyzed to verify the spectrum profile or scaled waveform profile of the input signal.
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