Consumers and companies around the world require more bandwidth than ever before for data-hungry applications such as video on demand, voice over IP (VoIP), videoconferencing, etc. Accordingly, service providers need to deploy faster and more reliable networks, using novel technologies such as reconfigurable optical add-drop multiplexers (ROADM) or 40G/100G networks.
Reducing downtime in any type of network calls for accurate measurement of optical signal-to-noise ratio (OSNR), but ROADM and 40 Gbit/s networks present a unique challenge as existing OSNR measurement methods yield incorrect results. EXFO’s WDM-Aware technology is the answer to this challenge, providing reliable i-in-band OSNR measurements.
The IEC subsystem test procedure 61280-2-9 defines the OSNR measurement as the power ratio between the peak power and the noise at half the distance between the peaks. Using this method in ROADM or 40 Gbit/s systems, this method may lead to incorrect results since the noise level between the peaks is no longer directly correlated with the noise level at the channel wavelength. However, the built-in WDM-Aware technology of EXFO’s FTB-5240S-P and FTB-5240BP OSAs enables you to achieve accurate i-in-band OSNR measurements of ROADM or 40 Gbit/s systems, directly and automatically.
Choice without Compromise
The all-new FTB-5240S and FTB-5240BP Optical Spectrum Analyzer (OSA) series covers your DWDM applications and all channel spacings, from 25 GHz DWDM to CWDM. This is what we call “no-compromise performance”, whatever your network specificities and testing requirements.
Nimble OSA Meets Supertech Patforms
The FTB-5240S OSA test module, housed in either the FTB-500 Platform or the FTB-200 Compact Platform, is purpose-built for fast and accurate dense wavelength-division multiplexing (DWDM) network commissioning and high-speed networking up to 40 Gbit/s.
Housing the FTB-5240S in the FTB-200 platform makes it the smallest high-performance, portable solution for spectral characterization of next-generation networks on the market. When equipped with in-band OSNR measurement capabilities, this versatile OSA can also be combined with the FTB-8140 Transport Blazer 40/43 Gigabit SONET/SDH/OTN Test Module to create a unique test solution for commissioning reconfigurable optical add/drop multiplexers (ROADMs), packet optical transport platforms (POT-Ps) and 40 Gbit/s systems.
Powerful Features for Simple Network Testing
The application software of the FTB-5240S/BP OSAs has been designed to optimize all testing operations—boosting productivity.
Favorites Button
The Favorites button enables direct access to your defined configuration list—right in the field.
i-in-Band
Intelligent setup and analysis on a per-channel basis based on the bit rate, modulation scheme, as well as the network configuration experienced by the wavelength (ROADM filters, etc.).
Referencing
Deploy and commission your network on day one. Then, as maintenance, upgrades and troubleshooting occur, compare the latest measurement with the original ones. Rapidly and directly see all changes, those made on purpose and those more unfortunate.
General and Specific
Have all of the DWDM results as well as manual specific information supplied by up to four markers, directly available on a single screen. No more toggling between pages to perform full analysis.
SCPI Commands
It is now possible to control the OSA remotely with a full-featured WDM mode SCPI command set.
Print to PDF
Generate a PDF report directly from the unit, making it much quicker and easier to convert reports into an e-mail-friendly format.
Intuitive On-Graph Peak Detection Level
Clearly see and differentiate between the signal and the noise. Analyze only what deserves to be analyzed, no more false-peak analysis or low-power peaks ignored.
Drift Measurements
You can now monitor power, wavelengths and OSNR over time. Follow the evolution of these critical parameters, set relative or absolute thresholds and get alarm notifications when they are crossed. You can also view the current and historical status of all channels in a single view called the dashboard to view the WDM trace of any acquisition that displays a change of state (i.e., when a threshold is crossed). You can also build a drift trace from historical DWDM acquisition.
Advanced EDFA Analysis
Since amplifiers are critical elements in all networks, it is crucial to ensure that they are optimized, that the gain is well-distributed and that the output power is flat. Now, you can further optimize EDFAs by measuring key parameters such as gain per channel, noise figure, gain flatness, gain slope, etc. More importantly, you can save and print this precious information.
Accurate Spectral Transmittance
With the advent of larger spectral content through the implementation of 40G and 100G, knowing the bandwidth of any given filter and the residual network bandwidth guarantees proper transmission. The new Spectral Transmittance software feature now compares the filtered wavelength to the nominal one, showing insertion loss, channel isolation and bandwidth at different power levels.
Laser Analysis
Make sure that your transmitters are within specifications. With the DFB Laser Analysis feature, you can now characterize a DFB laser source for central wavelength, peak power, bandwidth, SMSR, and much more. Automatically characterize Fabry-Perot lasers for central wavelength, RMS width, full width half-max (FWHM).
Faster Is Always Better
Testing speed is critical, which is why EXFO’s FTB-5240S and FTB-5240BP OSAs can complete a scan and display the results in less than one second—that’s fast enough for highly efficient network element adjustments on the go.
High-Power Option
With today’s high-power signals making their way into the DWDM space, it is critical to have an OSA that can measure them accurately without risking damaging your test equipment. The FTB-5240S matches this need, offering a high-power option (FTB-5240S-HPW) allowing up to +23 dBm input power per channel. The option is available with or without the i-in-band capability.
Note
Advanced features are available as options with the FTB-200 platform.