1：Experimental Design and Method Selection:

The experiment is designed to implement a microwave photonic phase-tunable mixer using a DP-DPMZM. The method involves generating CS-SSB modulation for the RF signal and CS-DSB modulation for the LO signal, with phase tuning via a bias voltage. Theoretical models include Bessel function expansions for optical field descriptions.

2：Sample Selection and Data Sources:

RF and LO signals are generated using analog signal sources (Keysight 8257D, E8257D) with specific frequencies and powers (e.g., RF at 12 GHz, 10 dBm; LO at 10 GHz, 19 dBm). Optical signals are sourced from a laser (Emcore TTX1994).

3：4). List of Experimental Equipment and Materials:

3. List of Experimental Equipment and Materials: Equipment includes a laser (Emcore TTX1994), DP-DPMZM (Fujitsu FTM7977HQA), electrical 90° hybrid coupler (Marki Microwave QH-0226), FBG, EDFA, PD (FINISAR XPDV2120R), OSA (Yokogawa AQ6370C), ESA (Keysight N9041B), oscilloscope (Agilent 86100C), and analog signal sources (Keysight, Rohde & Schwarz SMB100A, Agilent 8257D). Materials include optical fibers and bias voltage sources.

4：Experimental Procedures and Operational Workflow:

The optical carrier is injected into the DP-DPMZM. RF signal is applied via the hybrid coupler to DPMZM1 for CS-SSB modulation. LO signal modulates DPMZM2 for DSB modulation. FBG removes the optical carrier to achieve CS-DSB. EDFA compensates loss. PD detects the signal for frequency beating. Phase is tuned by adjusting bias voltage V6. Measurements are taken using OSA, ESA, and oscilloscope.

5：Measurements are taken using OSA, ESA, and oscilloscope. Data Analysis Methods:

5. Data Analysis Methods: Data analysis involves measuring optical spectrums with OSA, electrical spectrums with ESA for spur suppression and SFDR, and phase shifts with oscilloscope. Statistical techniques include calculating conversion efficiency and SFDR from power measurements.