- Overview
- All Models
- Support
Deep signal analysis for 800ZR and future coherent communications
Keysight XP7-class optical modulation analyzers (OMAs) combine a high-bandwidth real-time oscilloscope and coherent optical receiver to enable detailed insights into complex, high-speed modulation formats increasingly used in next-generation data communication systems. These products support modulation analysis up to 220 GBd with upgrade paths to meet your future testing needs. Whether you are developing 800ZR coherent transceivers or evaluating system-level performance, Keysight OMAs provide the accuracy and repeatability you need for compliance validation. Choose one of our popular configurations or configure one specific to your application.
High symbol rate support
Measure baud rates up to 220 GBd, ideal for analyzing ultra-high-speed signals in next-gen 800ZR networks.
Upgradable hardware
Scale as standards advance and test needs evolve with upgradable bandwidth, channel count, and analysis features.
Vector signal analysis
Analyze complex modulation formats with constellation diagrams, error vector magnitude (EVM), and polarization analysis.
Multiband options
Choose calibrated receivers for C/L/O-band operations, enabling analysis across wavelength ranges and applications.
-
Maximum sample rate
256 GSa/s
-
Frequency range
DC to 110 GHz
-
ADC resolution
10 bits
-
Maximum detectable symbol rate
220 Gbaud
-
Maximum record length
2 GSa
-
Wavelength range options
1527.6 nm to 1620 nm, 1270 nm to 1340 nm
Typical configuration
XP7-class Optical Modulation Analyzer
Services and support
Innovate at speed with curated support plans and prioritized response and turn-around times.
Get predictable, lease-based subscriptions and full lifecycle management solutions—so you reach your business goals faster.
Experience elevated service as a KeysightCare subscriber to get committed technical response and more.
Ensure your test system performs to specification and meets local and global standards.
Make measurements quickly with in-house, instructor-led training, and eLearning.
Download Keysight software or update your software to the newest version.
Frequently asked questions
An optical modulation analyzer (OMA) is an instrument that captures and analyzes complex coherent optical signals used in high-speed fiber optic networks. It combines a real-time high-bandwidth oscilloscope and a coherent optical receiver to decode and evaluate modulation formats like QPSK, 16QAM, 64QAM, and others. OMAs are essential for testing 800ZR, coherent pluggable modules, and other next-gen transceivers that demand precise performance validation.
Coherent optics refer to advanced optical communication technologies that use both the amplitude and phase of the light wave to transmit data, often across dual polarizations. Unlike traditional intensity modulation/direct detection (IM/DD) systems, coherent optical transceivers utilize digital signal processing (DSP) and coherent receivers to decode complex modulation formats such as QPSK, 16QAM, and 64QAM.
Coherent optics were originally used in long-haul and metro networks but are now increasingly adopted in data center interconnects (DCIs).
OMAs are typically used in the R&D and validation stages of transceiver and system development. They capture and analyze the transmitted signal from the output of the coherent optical device under test (DUT). Paired with a signal source and test automation tools, OMAs provide critical insight into how well a device handles modulation quality, symbol rate performance, and impairments like dispersion or polarization crosstalk.
Keysight OMAs are designed to analyze a wide range of advanced modulation formats, including:
- QPSK and BPSK for long-haul coherent systems.
- 16QAM, 64QAM, and higher-order QAM for metro and data center interconnects.
- Single- and dual-polarization formats, enabling full polarization-resolved vector signal analysis.
They also support constellation diagrams, error vector magnitude (EVM), IQ impairments, and more.
Choosing the right OMA depends on your test requirements:
- For 800ZR or 1.6T Ethernet transceivers, select models supporting up to 160 GBd symbol rates.
- If you work across different wavelength bands, choose C/L-band or O-band calibrated receivers.
- For future scalability, look for OMAs with upgradable hardware and software paths.
If you need advanced vector signal analysis, ensure the OMA includes Keysight 89600 VSA software integration.