WangSu Technology was created in January 2000，It mainly provides Internet

There are many problems in the current campus network construction of colleges

Though the electrical sensors have been widely used for decades in many fields,

The optical module is composed of optoelectronic devices, functional circuits a

1、The meaning of optical fiber communication Optical fiber communication is

随着广播电视传输技术的飞速发展，有线电视干线传输模式从同轴电缆时代走向光缆时代，光波长从1310nm时代走向1550nm时代。1550nm传输系统以其低损耗

CWDM又称为粗波分复用器（稀疏波分复用器），频率间隔大。CWDM的常用波长为1270-1610nm，信道间隔为20nm。 常用封装形式     波长转