OFS launches new dispersion slope compensating module for cable television market

Telecom Lead America: OFS, a supplier of fiber optic network products, has launched its new dispersion slope compensating module (DSCM) for the cable television (CATV) market.

Cable TV

This is just the latest product addition to OFS’ broad DSCM portfolio, with a corporate heritage in DSCMs going back to 1996.

Advantages of OFS’ DSCM line include: Wave length flexibility; Zero polarization dependent loss (PDL); Smooth slope dispersion compensation; Flexibility in packaging with both spool or boxed spool offerings and excellent optical performance.

With new mainstream applications such as high definition television (HDTV), content streaming including live broadcasts and real-time gaming, there is now an increased consumer demand for high quality services. Optical dispersion compensation allows these operators to take full advantage of the available optical bandwidth.

“CATV networks can now improve their subscribers viewing experience with the OFS DSCM CATV module by delivering high quality video services and HD content over long transmission lengths,” said Mimi Eggert-Hansen, product marketing manager, OFS.

Optical communication networks need to overcome the distortion caused by chromatic dispersion (CD).

These lower speed links can be aggregated or mixed with new higher speed links turned up for service. In addition, in CATV networks based on Dense Wavelength-Division-Multiplexed Passive Optical Networks (DWDM-PON) CD can also severely limit the maximum reach to the subscriber base.

Furthermore, chirp dispersion from low cost directly modulated lasers results in shorter allowable transmission distances compared to the distance calculated by the loss budget. Even with the advent of newer transmission technologies, CD remains an issue which OFS seeks to address with its new DSCM module.

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