HYC has many years of experience in high-density parallel optical design/manufacturing capabilities and automated precision assembly/testing capabilities, and can develop a full range of high-precision fiber array optical subassemblies. HYC will present this series of FA products at OFC2023, including lidless FA, ultra-small FA, 2D FA, MFD FA for silicon photonics, and polarization maintaining (PM) FA for coherent transmission.