Typical dispersion values (~8.5 ps/nm2 km @ 1550 nm) are high enough to minimize non-linear effects, but low enough to minimize dispersion compensation needs and to deploy of 40 G systems to boost capacity easily

Extended Reach
UltraPassTM fiber permits current 100 GHz DWDM system to extend their reach and even for 50 GHz system, providing lower system cost, due to reduced power penalties from suppressed non-linear effects

Deferred Investment
Lower non-linear effects enable UltraPassTM fiber to defer use of more expensive L-band from the fact that it can carry more densely spaced channels in less expensive C-band than those of standard NZDSF

Wide Range of Operating Bandwidth
UltraPassTM fiber provides zero dispersion point below the S-band and positive dispersion above 1,440 nm thus, exhibits DWDM compatibility across S, C, and L-band for capacity expansion

Flexibility of Choice
Service providers are not forced to choose between DWDM efficiency and higher bit rates. The eligiblydesigned dispersion characteristics support both possible migration paths

Better Non-linear Effect Management
UltraPassTM fiber shows the ideal balance of dispersion high enough for good cross channel non-linearity management, and low enough for self-phase modulation control (Self-phase modulation effects become critical in 40 G systems)

Lower Dispersion Compensating Cost
By dispersion at half the level of standard SMF, UltraPassTM fiber offers significant cost savings and easier system design from the reduced number and cost effectiveness of dispersion compensators needed when deploying 40 G networks.

Cost Effectiveness by Lower PMD
UltraPassTM fiber achieves extremely low PMD enough to fully support 40 Gbps network, reducing barriers to cost-effective system deployment and on-going operation