NEW PRODUCTS - July 2009
OPTICAL - Arris adds CorWave feature
Arris  now has available a variable output feature for its 1 GHz CHP CorWave forward transmitter that allows customers to configure output power (via GUI software); typically power is factory set.
Arris claims the feature is unique.
The capability provides MSOs with flexibility when finalizing link budgets within their network architectures, and it saves on sparing costs, Arris said.
CorWave is an extension of Arris’ multi-wavelength optics solutions.
Additionally, Arris has introduced a 1 GHz CorWave DXL (dual-input, full-bandwidth) forward transmitter that extends analog linearization out to 870 MHz.
The CorWave DXL provides better distortion performance, allowing operators using global channel plans to add incremental bandwidth capacity on as few as one fiber, and it can be monitored by the CorView Element Management system.
In March, Arris introduced two new products in its optical access product portfolio. The company’s CorWave optical transmitter was capable of sending signals on two wavelengths; the CorWave II is expandable, in steps, to up to 16 wavelengths. Arris performed trillions of calculations to choose wavelengths that could be used together, while minimizing linear and non-linear impairments the company said were common in long-distance DWDM transport.
And Arris believes the costs of extending fiber directly to subscribers’ homes or businesses are now roughly equivalent to stringing coax, and getting cheaper. Arris introduced its FTT Max RFoG CPE, a device that allows operators to extend their HFC plants using fiber (RF over glass, or RFoG). This setup could also be used for PON, Arris said, leaving a clear migration path should Gigabit Ethernet PON or 10 GigE PON become necessary to satisfy subscriber requirements.
Fujitsu upgrades Flashwave 7500 ROADM
Fujitsu Network Communications  has announced the general availability of second-generation 40 Gbps interfaces for its Flashwave 7500 ROADM, an optical hubbing and transport solution that is deployed in cable operator and carrier networks to support core network consolidation, metro/regional capacity relief and triple-play service delivery.
With an Adaptive Differential Phase Shift Keying (ADPSK) modulation scheme and Fujitsu-patented Variable Dispersion Compensation (VDC), the second-gen units enable network growth of up to 1.6 Tbps of capacity to help customers meet ongoing demands for increased speed and bandwidth, the company said.
Three new 40 Gbps units are now available for the Flashwave 7500 ROADM, including the 40 Gbps Transponder, the 4:1 Muxponder and the 40 Gbps Regenerator.
Primarily intended for 40 Gbps core router interconnection services, the 40 Gbps Transponder provides a full-band tunable network interface and an OC-768 client interface. Supporting four 10 Gbps client interfaces, the 4:1 Muxponder provides a method for aggregating 10 Gbps traffic and quadrupling the capacity of existing 10 Gbps-based networks. And the 40 Gbps Regenerator provides electrical signal regeneration for long spans, eliminating the cost and complexity involved with the use of back-to-back transponders, according to Fujitsu.
Trilithic releases Model Three SLM
Trilithic  has released the first in a series of new signal level meters that enable broadband installers to maximize efficiencies in the field.
The new Model Three signal level meter features tests for both analog and digital channel measurements – from 5 MHz to 1 GHz – including full scan, single channel and spectrum modes; data logging; digital signal measurements, including power, MER, and pre- and post-FEC BER (counting deep interleave); and an optional constellation display.
The Model Three can be customized to use a single keystroke to perform a complete auto test of all channels in the selected user channel plan.
“This product fits well in the direction we are headed in the cable business,” said Terry Bush, president of Trilithic. “Cable service providers are looking for more ways to streamline installations and reduce callbacks, without major capital investments. This economical meter is simple to use and [easily automates] testing – for consistent results.”
The Model Three SLM is now available, and Trilithic is accepting orders for shipments.