WideBand OM4 multi-mode fiber for next-generation 400Gbps data communications

Abstract

We define the bandwidth requirements for OM4 performance within the wavelength window of 850 to 950nm. We have manufactured a MMF meeting these requirements while maintaining full compatibility with legacy OM4. This MMF enables 400Gbps using wavelength division multiplexing. IntroductionMultimode fibers (MMFs) have constantly evolved from the very beginning of optical communications industry through the recent and on-going explosion of the Ethernet traffic. Enabled by VCSEL technology and OM4 level performance, MMFs have proved to be the medium of choice for data communications, delivering reliable and cost-effective 10 to 100Gbps solutions.In order to meet the future increase of demand, the MMF capacity will ultimately have to be increased

Reach Extension and Capacity Enhancement of VCSEL-Based Transmission Over Single-Lane MMF Links

“…4 displays the measured EMB of the WB-OM4 fiber as a function of wavelength. The red curve presents the minimum bandwidth requirement of a WB-OM4 fiber, which was defined for wavelength window of 850 nm to 950 nm in [22]. The EMB of the WB-OM4 fiber measured at 850 nm is above the minimum OM4 requirement and increases for higher wavelengths, peaking at 880 nm.…”

25.78 Gbit/s data transmission over 2 km multi‐mode‐fibre with 850 and 910 nm single‐mode VCSELs and a commercial quad small form‐factor pluggable transceiver

“…The bit rate of 25.78 Gbit/s is specified by Ethernet standard. The optical signal of the Tx is transmitted through various lengths of multimode Prysmian WideCap‐OM5 MMF to the receiver (Rx) channel of the QSFP module [7]. The resulting electrical signal is analysed by the digital sampling oscilloscope (DSO) and an error analyser.…”

“…Setup: Two setups used in this Letter are displayed in Fig. 1 [7]. The resulting electrical signal is analysed by the digital sampling oscilloscope (DSO) and an error analyser.…”