OM1, OM2, OM3, OM4 : fibre optique multimode, fibre nue

Sourcing the OM3 and OM4 multimode bare fiber spools in 1000m and 2000m lengths has streamlined our custom patch cord manufacturing process. The fiber consistently meets the 3.5dB/km attenuation specification, ensuring stable high-speed transmission across short-reach optical links. The compact spool design (5.3cm inner diameter and 7.3cm–9.0cm outer diameter depending on length) fits neatly onto our benchtop winding and connectorization stations. Having the option to order completely unconnectorized bare glass or pre-terminated FC/SC ends gives us great flexibility for custom OEM orders.

Excellent optical glass quality for R&D testing and optical equipment calibration. We ordered 500m spools of both OM1 (62.5/125) and OM2 (50/125) bare fiber to validate legacy enterprise transceivers and test fusion splicer arc profiles. The 3.5dB/km attenuation rate is verified across our OTDR traces, and the glass strips cleanly without micro-cracking. The compact 6.5cm outer diameter spool for 500m lengths is easy to store in our test benches, making this a very practical bare fiber supply for benchtop diagnostics.

We procured OM4 50/125 multimode bare fiber spools to build custom-length interconnects for enterprise server rack links. The low attenuation rate of 3.5dB/km ensures pristine optical signal margins for high-density multi-gigabit hardware. Choosing the pre-terminated SC/UPC connector option saved our technicians significant field labor during custom assembly terminations. The spools are neatly wound, easy to payout during production, and the optical consistency across 500m and 1000m batches is top-notch.