Using based on MEMS（Micro-Electro-Mechanical Systems）technical adjustable optical attenuator（VOA--Variable Optical Attenuator）which re main methods to figure out problems of optical fiber communication channel equalization.

       Shanghai Honghui develops and researches series of VOA, which uses MEMS chips and designed by particular optics so that products are made low power consumption, small size, fast response, high stability, high reliability.

          Our company also supply particular types products which depends on requirements of clients.