ISO and TIA standardization organizations released the latest wiring standards ISO 11801 3rd and TIA-568.0-D respectively in 2017, pointing out that OM5 fiber is designed based on the VCSEL laser light source, and specifically specifies the bandwidth characteristics for wavelength division multiplexing (WDM).
The purpose of this new optical fiber classification method is to provide support for a variety of 0010010 quot;short 0010010 quot; wavelengths between 850nm and 950nm, and wavelengths in this range are suitable for high-bandwidth applications after polymerization.
The attenuation of the OM5 broadband multimode optical cable has been reduced from the previous 3.5 dB / km of the OM3 and OM4 optical cables to 3.0 dB / km. In addition, the bandwidth requirement at the wavelength of 953 nm has been increased.
At the same time, support future 400G Ethernet, for higher speed 400G Ethernet applications such as 400GBase-SR4.2 (4 pairs of fiber 2 wavelengths, each channel uses 50G PAM4) or 400G Base-SR4.4 ((4 pairs of fiber 4 Wavelength, each channel uses 25GNRZ), OM5 fiber has the advantage of transmission distance.
In recent years, various optical fiber manufacturers and optical module manufacturers have reported the latest transmission results of OM5 and 0010010 quot;Ultra-Wideband Multimode Fiber 0010010 quot; under the support of PAM4 modulation technology and wavelength division multiplexing technology. From the reported experimental results, OM5 fiber is sufficient Supports 100Gb / s, 200Gb / s and 400Gb / s multi-wavelength transmission systems over 150 meters. OM5 fiber has more advantages in transmission distance than OM3 and OM4 under various transmission standards; OM5 fiber will continue to lead multimode fiber in The status of cabling in the data center.
