Optical Transport Solutions for Telecom

Telecom service providers have fiber spans in the access and interoffice that are at exhaust or near-exhaust conditions. The rapid growth of DSL and IPTV service offerings has placed severe strains on existing fiber infrastructure in the access and interoffice. WDM, CWDM and DWDM provide cost-effective and easy to install bandwidth solutions that take full advantage of existing fiber from very low growth fiber sections to extremely high-growth sections. These systems can be either passive systems that accept ITU grid CWDM or DWDM wavelengths or active systems that accept native wavelengths and convert or “transpond” them to the appropriate ITU grid wavelength. Reach extension products are often needed to extend the length of a fiber span in the interoffice a sometimes in the access.