Yangtze Optical Electronic Co., Ltd. engages in the research and development, production, and sale of special optical fiber and cables, special optical devices, new materials, high-end equipment, and photoelectric systems in China. The company offers optic fiber coils, optical modules, and optical devices; PANDA polarization maintaining fiber for FOG coiling, FOG waveguide, communications, and maintaining fibers; bend sensitive single-mode, coupling SM, special cut-off wavelength SM, spun, photonic crystal optic, PM photonic crystal optic, hollow-core photonic crystal, polymer cladding large-core, quartz cladding large-core, square core, ytterbium doped, passive matching, multi-core, and customized fibers; and fluorine-doped capillary tubes, SM fiber preforms, boron-doped stress rods, large-core preforms, fluorine doped quartz tubes, and custom glass special-shaped preforms. It also provides special optic fiber and optic fiber coil manufacturing equipment, supporting equipment for fiber lasers, supporting equipment for optic fiber hydrophones, and other customized equipment; and new materials, thermal control modules, and thermal control phase-change materials.