研究目的
Investigating the high-speed optical beam scanning capabilities of an optical phased array (OPA) using electro-optic (EO) polymer waveguides.
研究成果
The EO-polymer OPA demonstrated high-speed optical beam scanning at a frequency of 2 MHz and low power consumption of 0.38 mW at a scanning speed of 500 kHz. The study highlights the potential of EO-polymer OPAs for applications requiring high-speed and low-power optical beam manipulation.
研究不足
The study focused on a specific type of OPA using EO polymer waveguides, and the results may not be directly applicable to other types of OPAs. The fabrication process involves fine processing, which may introduce variations in the characteristics of the phase shifters.
1：Experimental Design and Method Selection:
The study involved the fabrication of an eight-channel-waveguide OPA using an EO polymer for phase control. The methodology included applying a driving waveform superimposing sinusoidal and rectangular-wave voltages to demonstrate high-speed optical beam scanning.
2：Sample Selection and Data Sources:
The OPA was fabricated with an EO polymer and organic silica for the core and cladding material, respectively, and an IZO thin film for the electrodes.
3：List of Experimental Equipment and Materials:
The experimental setup included a light source, a polarizer, an EO-polymer OPA, eight function generators, and an InGaAs photodiode.
4：Experimental Procedures and Operational Workflow:
The phase of guided light beams was controlled by applying a square-wave voltage and an offset voltage to each channel of the phase shifter. The optical intensity distribution was measured to evaluate the performance of the OPA.
5：Data Analysis Methods:
The far-field patterns of the optical beam were analyzed to confirm the accuracy of the phase control and the scanning capabilities of the OPA.
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