PacketLight Networks has extended the reach of its 400G optical transport solutions to 4,000 kilometers, enabling cost-effective ultra-long-haul connectivity across transcontinental and backbone networks. The company’s PL-4000T (1.6T, 4x400G) and PL-4000G (4.8T, 12x400G) transponders now support this enhanced reach via a software upgrade, eliminating the need for new hardware deployments.
Powered by advanced 800G DSPs and leveraging dual-polarization QPSK with probabilistic constellation shaping (PCS), the systems achieve optimal spectral efficiency and improved tolerance to fiber impairments. PacketLight integrates features such as extensive dispersion compensation, high receiver sensitivity, and advanced soft-decision FEC (SD-FEC) to sustain performance across extended distances. The solution also enhances optical signal-to-noise ratio (OSNR), making it effective even on metro routes with degraded fiber quality.
PacketLight emphasizes a cost-transparent model with no hidden licensing fees. Its pay-as-you-grow approach allows operators to extend existing infrastructure without lock-in, offering scalability for growing AI workloads, cloud connectivity, and high-capacity data center interconnect.
“Our pay-as-you-grow approach removes distance barriers for high-speed networks, making ultra-long-haul transport simpler, more cost-efficient, and ready for future growth,” said Koby Reshef, CEO of PacketLight Networks.
Details:
- PL-4000T: 1.6T capacity (4x400G)
- PL-4000G: 4.8T capacity (12x400G)
- 800G DSP with PCS and SD-FEC
- Up to 4,000 km reach via software upgrade
- Supports metro and ultra-long-haul deployments
- No additional license fees
