OM5 multimode fiber supports more wavelength channels, so it is the same direction for SWDM4 with four wavelengths or BiDi with two wavelengths. Similar to BiDi for 40G links, SWDM transceivers require only a two-core LC duplex connection, except that SWDM operates on four different wavelengths per fiber between 850nm and 940nm, with one fiber dedicated to transmitting signals and the other fiber dedicated to receiving signals.
OM5 fiber also supports the future of 400G Ethernet, for higher speed 400G Ethernet applications such as 400G Base-SR4.2 (4 pairs of fiber 2 wavelengths, each channel using 50G PAM4) or 400G Base-SR4.4 ((4 pairs of fiber 4 wavelengths, each channel using 25GNRZ), only 8 core OM5 fiber, compared to Compared to the first generation of 400G Ethernet 400G Base-SR16 (16 pairs of fibers, 25Gbps per channel), the number of fibers required is only a quarter of the traditional Ethernet. SR16, as a milestone in the development of multimode 400G technology, proves the possibility of multimode technology to support 400G. multimode applications.
Optical fiber as a physical transmission medium for data communications to provide support for network equipment, OM5 fiber promotion can not be separated from the support of network equipment manufacturers.
Currently, there are two technologies in the market to transmit high-speed networks with small amounts of fiber: BiDi and SWDM4. From the industry chain, OM5 multimode fiber and BiDi and SWDM4 equipment vendors have formed an industry alliance, but the maturity of this ecosystem depends on the shipment of these 40/100G network devices and the large deployment of OM5 fiber. OM5 multimode fiber testing is identical to traditional OM3, OM4 multimode fiber testing equipment and test procedures, users do not need to purchase additional separate test equipment.
