Tektronix rolls ultra wide band, extremely low noise oscilloscope

Tektronix rolls ultra wide band, extremely low noise oscilloscope

New Products |
By eeNews Europe

Distinctive key innovations of the DPO70000SX ATI Performance Oscilloscope that set it apart from other ultra-high bandwidth oscilloscopes include:

  • World’s first 70 GHz real-time oscilloscope with Tektronix’ patented Asynchronous Time Interleaving (ATI) technology that preserves signal-to-noise ratio for higher fidelity. Thus, users can more accurately capture and measure their signals at higher speeds than possible with other oscilloscopes.
  • 200 GS/s sample rate with 5 ps/sample resolution for improved resolution and timing.
  • Compact form factor that enables the instrument to be positioned very close to the device under test (DUT) while providing flexible display and control for analysis. Reducing the distance to the DUT enables shorter cable lengths which in turn help to preserve signal fidelity at very high frequencies.
  • The most scalable oscilloscope system on the market featuring Tektronix’ UltraSync architecture that provides precise data synchronization and convenient operation of multi-unit systems. Precise multi-channel timing synchronization is key to meeting acquisition requirements in applications such as 100G and faster coherent optical modulation analysis.

To achieve such high bandwidths, other oscilloscope vendors use a frequency interleaving technique that splits the signal into high- and low-frequency bands which are digitized separately. Digitizing the bands separately like this however introduces noise and causes phase, amplitude, and other mismatches which are very difficult to overcome when the two bands are reassembled. With the ATI technology – which uses time interleaving rather than frequency interleaving to achieve high sample rates – the full signal spectrum is digitized by each of two symmetrical signal paths with matched performance, which substantially reduces noise when the full spectrum is recovered.

Precise multi-instrument timing synchronization is required for high-speed coherent optical applications. UltraSync meets this requirement with a high-performance synchronization and control bus that allows multiple DPO70000SX oscilloscopes to work together to deliver the precise high-speed multi-channel acquisitions needed for these applications. UltraSync includes a 12.5 GHz sample clock reference and coordinated trigger bus for inherent acquisition-to-acquisition jitter equivalent to typical channel-to-channel jitter within a single instrument. In addition, it includes a high-speed data path to transfer waveforms from extension units to the master unit for analysis. Since each oscilloscope fully processes its acquired signals, only completed waveforms are sent to the master unit, maintaining performance even as more channels are added. UltraSync allows optical test software to manage a multi-instrument acquisition system for the most precise optical modulation analysis available.

To improve system flexibility, the DPO70000SX oscilloscopes are packaged in a 5 ¼" tall form factor while retaining full high-performance functionality. This compact packaging enables users to stack two oscilloscopes in the same space as a standard bench oscilloscope.

The DPO70000SX provides customers the ability to scale up to more performance across more channels. For instance, four channels at 33 GHz with insight on two channels at 70 GHz may be sufficient for many of today’s applications. As needs change, two additional units can be added to the configuration to provide four channels at 70 GHz – all functioning as a single instrument.

The optical modulation analyzer (OMA) introduced along with the DPO70000SX oscilloscope is tightly integrated with the latter to provide multi-channel, high sample rate, low noise digitization of complex modulation signaling for testing coherent optical transmitters, transmission systems, and receivers.

To ensure the high performance in a multi-channel environment, Tektronix’ new UltraSync technique enables a multi-instrument acquisition system with coordinated triggers for inherent acquisition-to-acquisition jitter better than typical channel-to-channel jitter in any single instrument. In addition, it includes a high-speed data path to transfer waveforms from extension units to the master unit for rapid analysis.

The explosive growth of mobile and cloud computing continues to drive long-haul optical communications bandwidth demands. To maximize fiber optic and network infrastructure investments, the industry has turned to complex optical modulation formats that allow higher effective data rates without requiring greater network bandwidth. To date, researchers and engineers have needed to turn to multiple test and measurement vendors or even build their own test fixtures to perform required tests, costing valuable research time and reducing repeatability. With today’s introductions, Tektronix has now solved the industry-wide problem of how to efficiently test coherent modulation technologies.

The OM4245 45 GHz Optical Modulation Analyzer is capable of dual-polarization coherent optical analysis up to 80 GBaud. It offers built-in, narrow line-width lasers and supports the Tektronix OM-Series User Interface (OUI). Along with proven ease-of-use for typical analysis applications, the Tektronix OUI also provides the flexibility and access to the MATLAB computational engine researchers need for more advanced coherent optical analysis.

For analysis beyond 400G, the OM4245 offers Multi-Carrier Support (option MCS) that delivers automated analysis for configuration of such systems including 800G and 1Tb architectures.

The OM4245 optical modulation analyzer prices start at €212,000 / £176,000 and is available to order now worldwide. The 70 GHz DPO70000SX ATI units start at €250,000 / £208,000 with a two-unit system starting at €381,000 / £317,000.

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