Chao Z.

I help companies, researchers, and engineering teams solve problems in photonics, LiDAR, optical communication, optical sensing, FPGA control, and MATLAB/Python simulation. I have hands-on experience in both industry and academia, including optical measurement instruments, coherent optical communication, free-space optical communication, quantum communication, OTDR/OFDR, FMCW/ToF/AMCW LiDAR, and FPGA/DSP-based control systems. I can help you with: MATLAB or Python simulation for optical systems LiDAR signal processing and system modeling FMCW, ToF, AMCW, OTDR, OFDR, and fiber sensing analysis Coherent optical communication and DSP simulation BER, SNR, phase noise, frequency noise, and modulation analysis FPGA/Verilog/VHDL design for timing control, UART, SPI, and signal processing Debugging and improving existing MATLAB, Python, or HDL code Technical reports, research review, patent/market technology analysis Japanese / English / Chinese technical documentation What makes me different is that I understand both the physics and the implementation. I do not only write code. I connect optics, electronics, signal processing, noise, hardware constraints, and real measurement issues. Typical projects I can support: “I need a MATLAB simulation for an optical communication system.” “I want to model an FMCW LiDAR system and analyze the signal.” “My optical sensing data is noisy and I need help interpreting it.” “I need Verilog code for UART/SPI/timing control.” “I need a technical expert to review a photonics or LiDAR technology.” “I need someone who can explain complex optical technology clearly.” I have worked in Japan, Singapore, and international research environments, and I can communicate fluently in English, Japanese, and Chinese. I am especially suitable for projects that require deep technical understanding, clean simulation code, and clear communication.