Uploaded by HYC Co., Ltd

What is LWDM (Lan Wavelength Division Multiplexing)

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
providing customers with one-stop customization of the design,
development and manufacturing of passive basic optical components for
optical communication. The production lines includes fiber optic
connectors, fiber optic jumpers, PLC splitters, WDM wavelength division
multiplexers, MEMS optical switches, and so on. Products are widely
used in FTTH, data centers, 5G networks, and telecommunication networks.