Photonic chips with polarization-maintaining fiber pigtails are essential for high-precision applications such as fiber optic gyroscopes, fiber sensing, and optical communications. These chips, primarily made from lithium niobate, excel in functions like light splitting, polarization handling, and signal processing. Suppliers like Shanghai Aoshi Control Technology Co.Ltd offer a range of products including multi-function chips and Y-waveguides. On FindLight, buyers can compare specifications, request pricing, and connect directly with manufacturers without the need for registration.