We continue to keep increasing and perfecting our solutions and service. At the same time, we operate actively to do research and enhancement for Erbium Doped Fiber, 1550 Nm Electro-Optic Phase Modulator , Soa In Optical Fiber , Ultra High Precision MZM Bias Controller On Q Point ,High Linearity Photodetector . As an expert specialized in this field, we are committed to solving any problem of high temperature protection for users. The product will supply to all over the world, such as Europe, America, Australia,Russia , Brasilia ,luzern , Turkey .Our company always concentrate on the development of the international market. We have a lot of customers in Russia , European countries, the USA, the Middle East countries and Africa countries. We always follow that quality is foundation while service is guarantee to meet all customers.