• June 23. 2016

With the development of the optical communication industry,new technology and cost-saving solutions are derived.Such as the widely used of CWDM and DWD.Today we learned about CWDM and DWDM. CWDM is a low-cost WDM transmission technology face to the access layer of metropolitan area network.Saving fiber resources and networking cost.It solves two problems:1.The shortage of optical fiber; 2.Multiser...

• March 14. 2016

With the optical fiber application develop, the CWDM and DWDM was designed in the optical network . The early fiber optic transmission systems put information onto strands of glass through simple pulses of light. A light was flashed on and off to represent the “ones” and “zeros” of digital information. The actual light could be of almost any wavelength (also known as color or frequency) from rough...