Delaire’s New Fiber Optic Test Links

Delaire USA extends the application range of its 8800 Family of Fiber Optic Test Links to include the 200 Gb/s, 400 Gb/s as well as the proposed 800 Gb/s Ethernet 802.3 standard variants

The 8800 Family of Fiber Optic Test Links now fully encompasses OM3 and OM4 versions, at all specified lengths, of the 802.3xx Ethernet Standard’s 40GBASE, 100GBASE, 200GBASE, 400GBASE as well as the proposed 800GBASE variants. Bidirectional and unidirectional versions are available in rack mount or bench top configurations.

Delaire USA’s 8800 Family of Fiber Optic Test Links provide precise representations of worst-case fiber links to verify the ability of high-speed optical network equipment to operate at the limits of cables defined by the 802.3 Ethernet standard.

To ensure the most realistic test environment, the 8800 Family uses real fiber optic cable that has been selected and measured to provide a link bandwidth based on industry standards. In addition to the specifications provided by the fiber manufacturer, Delaire USA has its OM3 and OM4 fiber independently characterized for optical attenuation, modal bandwidth, and chromatic dispersion. Because a single modal bandwidth number cannot fully define a fiber’s actual bandwidth/performance, Delaire USA has DMD plots taken across multiple axes of the fiber to provide engineers with detailed information regarding the fiber’s bandwidth performance. Chromatic dispersion (CD) measurements are provided from 800nm to 1400nm. This DMD and CD data goes beyond what is available from fiber manufacturers to help engineers better interpret their test results.

As an example, the IEEE 802.3db specification defines a maximum operating distance of 100m for 400GBASE-SR4 over OM4 fiber with an EMB of 4700 MHz-km (at 850nm). To meet this requirement, the full duplex 8800 contains four bidirectional channels (eight links) of identical fiber cut using custom proprietary fiber spooling equipment to the same length (spooled to within an accuracy of +/- 0.06%) terminated with FC connectors. The actual length of each link is selected to provide the worst-case link bandwidth specified in the standard. The DMD and CD independent test data on each fiber is available as an option. Custom configurations and lengths are available.

For more information contact Lori“at” : 732-528-4520