Passive WDM Solutions in Network

Passive WDM Solutions in Network

DWDM is a cost-effective solution with point absorption modulated lasers (EM). It has high reliability and stability, high channel isolation, high bandwidth, low insertion loss and less complexity

CWDM uses wavelength multiplexing technology, which has the advantages of high bandwidth, high channel isolation, low temperature sensitivity, and low cost. It enables operators to transmit 18 bands simultaneously in a pair of optical fibers.

 

LWDM is based on Ethernet communication wavelength division multiplexing (LAN WDM). Its channel spacing is 200~800GHz, which is between DWDM (100GHz, 50GHz) and CWDM (about 3THz). LWDM provides high reliability and stability, high channel isolation and low insertion loss. In addition, LWDM can support 12-wave 25G to increase capacity and save fiber.

MWDM focuses on the first 6 wavelengths of CWDM, compresses the 20nm wavelength interval of CWDM to 7nm, and uses thermal electron cooler (TEC) temperature control technology to expand 1 wave to 2 waves, which can further save fiber resources while achieving capacity Increase

Wavelength Division Multiplexed Passive Optical Networks (WDM-PON) use multiple different wavelengths over a physical point-to-multipoint fiber optic infrastructure. WDM-PON realizes 1310/1490/1550nm bidirectional communication through a single fiber, which can expand the capacity of a single fiber and save fiber resources. It provides high reliability, high bandwidth, high communication isolation, low latency, low insertion loss, plug-and-play ONU (Optical Network Unit) and simple operation and maintenance (O&M).

Gracyfiber Technology(www.gracy-fiber.com)  with more than 15 years of experience in optics R&D and manufacturing for optical active and passive products. Gracyfiber provides a full range of high-speed CWDM/DWDM/Lan WDM/FWDM/OWDM/MWDM, and clients can be customized wavelength.