EXFO adds tunable DPSK testing to 40G/43G platform

DPSK phase modulation improves the reach of 40G links and increases resistance to dispersion effects.

-- Test & Measurement World, 9/3/2010 7:00:00 AM

Tunable DPSK (differential phase-shift keying) enriches the test capabilities of EXFO's FTB-8140 Transport Blazer 40/43-Gbps SONET/SDH/OTN test module. This new functionality for the FTB-8140 allows field engineers to verify the individual line-side channels of 40G DPSK DWDM (dense wavelength-division multiplexing) networks.

Complemented by OTN intrusive through-mode capability for monitoring individual DWDM channels at ROADM (reconfigurable optical add/drop multiplexer) sites, the FTB-8140 provides engineers with the tools required to simplify the installation of 40G advanced networks and to ensure error-free performance and reliability. DPSK phase modulation improves the reach of 40G links and increases resistance to dispersion effects to ensure wavelengths continue meeting expected performance levels.

Housed in the eight-slot FTB-500 platform, the FTB-8140 Transport Blazer module can be combined with the FTB-5240S-P in-band OSA (optical spectrum analyzer) for 40G BER and in-band OSNR (optical signal-to-noise ratio) testing during network commissioning. It can also be combined with the FTB-8130NGE Power Blazer module for multiservice turn-up and validation with 40G BER testing and 10G down to 10-Mbps testing applications covering SONET/SDH/OTN, Ethernet, and Fibre Channel.

For more details about the FTB-8140 Transport Blazer test module, go to www.exfo.com/en/Products/Products.aspx?Id=377.

EXFO, www.exfo.com.