Wuhan Yusheng Optical Devices Co.,Ltd ,located in optical valley of China,is a high-tech enterpriese, which is specialized in developing, producing and selling.Its main products include laser diode module,pin photodiode module, optical transmitter module,optical receiver module,optical transceiver module,etc. we can supply the best sulotion for you. "user god,first quality" is our principle. we wish cooperating with you and serving you best.