What is LWDM (Lan Wavelength Division Multiplexing) There are CWDM(coarse wavelength division multiplexing),DWDM(dense wavelength division multiplexing),and newly MWDM,LWDM in 5G WDM bearer solutions. MWDM and LWDM are two kinds of WDM proposals presented by China Mobile and China Telecom. MWDM reuses the first 6 waves of CWDM, compresses the wavelength interval to 7nm, and expands it to 12 waves with a 3.5nm offset. And LWDM is based on the Ethernet channel wavelength division multiplexing Lan-WDM technology, also known as dense wavelength division multiplexing. Its channel interval is 200~800GHz, this range is between DWDM (100GHz, 50GHz) and CWDM (about 3THz). LWDM uses 12 wavelengths in the O-band range from 1269nm to 1332nm, with a wavelength interval of 4nm (Wavelengths including 1269.23, 1273.54, 1277.89, 1282.26, 1286.66, 1291.1, 1295.56, 1300.05, 1304.58, 1309.14, 1313.73 , 1318.35nm).
The characteristic of LWDM working wavelength is that it is located near zero dispersion, with small dispersion and good stability. At the same time, LWDM can support 12-wave 25G to increase the capacity and save fiber.
HYC can provide customers with a full range of WDM solutions, including the latest MWDM, LWDM and CWDM, DWDM products. HYC has 20 years of OEM/ODM manufacturing experience in the optical communication industry, and has a certain influence in the global industry. It focuses on