StrataLight Communications announced the expansion of its differential phase-shift keying (DPSK) product line to support L-Band (1570.42nm to 1607.42nm) wavelengths.

 

The extended L-Band product line includes two transponders and one regenerator. These products enable cost-effective aggregation of 10 Gbps client services into a 40 Gbps dense wavelength-division multiplexing (DWDM) format for metro, regional and long-haul networks.

 

The OTS-4011-L multiplexing transponder has been already deployed by Xtera Communications (News - Alert) to meet the demand for 40 Gbps on an unrepeatered link of a Tier 1 carrier in North America.

 

“For some service providers, the L-Band is an option that enables significant capacity increases on existing networks,” said Herve Fevrier, COO of Xtera Communications, in a statement. “For others, the L-Band is the only choice to overcome fiber impairments. In some subsea applications the L-Band is necessary to simultaneously maximize capacity and transport distance. This technology along with all-Raman amplification provides a cost-effective solution to evolve those networks to 40 Gbps.”

 

 L-Band capability simplifies the network deployments by allowing for 40 Gbps to plug and play in 10G designed networks, lowering capital expenditures by increasing usable bandwidth and meeting the demand for higher line rate services.

 

StrataLight specializes in commercial deployment of ultra high capacity optical transmission subsystems with line rates in excess of 40 Gbps. It enables service providers to address the growing demand for bandwidth driven by IP converged services using their existing fiber network infrastructures.