Engaged in the research and development of new materials, cooperated with domestic scientific research institute, Zhengzhou Kiegoo Photonics Technology Co., Ltd. is the professional supplier of Faraday Rotator Glass/ Magneto Optical Glass/ Faraday Rotator Elements and Butterfly Package component for the fiber-optic communication area. Our products were mainly exported to European and American market. We produce according to customer?s drawing or design and manufacture for clients. Faraday Rotator Glass/ Magneto-Optical Glass/ Faraday Rotator Glass ElementsIt?s the terbium doped borosilicate glass with high verdet constant-0.33min/Oe.cm at 632.8nm and mainly used in Faraday Rotators and Faraday Isolators. 14 pins Butterfly Type PackageLow temperature glass or Ceramic feed-through with high hermiticity and reliability, it was widely used in fiber-optic communication.Terbium Gallium Garnet TGG Crystal Tb3Ga5O12 TGG is a excellent magneto optical crystal used in Faraday Rotators and Isolators. Verdet Constant: 0.12 min/Oe.cm or 35 rad/T.m at 1064 nm We insist on superior products and guarantee the quality all the times.