Industry News

.VCSEL-based 25-Gbps transmission at 850 nm nearing readiness

October 2, 2011

While module developers work to perfect 4x25-Gbps transmission over singlemode fiber for 100GBase-LR4 and -ER4 applications, technologists have already begun work on enabling similar transmission over multimode fiber. Recent demonstrations have shown progress on both the transmission and reception ends of the spectrum. The demonstrations indicate that 4x25-Gbps products could be readily available once standards are in place.

Billion selects BroadLight’s Helios embedded processors for new Active Ethernet carrier-class

October 2, 2011

Billion Electric Co., Ltd. has selected the Helios embedded processor line from BroadLight, a supplier of fiber access processors, in the development of its new Active Ethernet carrier-class router product.

Optical amplifier offers record low noise, says Chalmers

October 2, 2011

Researchers at Chalmers University of Technology in Sweden say they have demonstrated an extremely low noise optical amplifier that can extend signal reach by 4X. The phase-sensitive fiber-optic parametric amplifier (PSA) offers a noise figure of 1.1 dB, 3X less than that of conventional EDFAs. If the amplifier can be commercialized – and Chalmers described the technology behind the PSA as “practical” – it could significantly improve the performance of optical communications networks by lessening the amount of interference signals would encounter.