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Faster SS-OCT Options for 12-bit High-Speed Data Acquisition PCIe Card

Continuously Acquiring Up to 200 kHz A-Scan Rate While Maximizing Superior Image Resolution, Performance

Key Features:

-New swept source optical coherence tomography options now support up to 1 GS/s on the 12-bit high-speed data acquisition PCIe card

-Faster image acquisition up to 200 kHz A-scan rate, continuously

-Targeting applications in various non-invasive medical imaging

Keysight High-speed Digitizers Team introduces swept source optical coherence tomography (SS-OCT) application options running at 1 GS/s (-SS2) and 500 MS/s (-SS1). The new options, now available on the U5303A high-speed data acquisition PCIe card, enable OEMs to obtain faster image acquisition by increasing sampling rate and A-scan rate. This allows for non-invasive, high-speed medical imaging in various applications, including ophthalmology, dermatology, gastrointestinal endoscopy, intravascular imaging, oncology and angiography.

This real-time processing solution allows OEMs to develop their SS-OCT engine using the development environment provided, which includes a GUI and C++. Furthermore, the options support “up and down sweep” and “up-sweep only”, including improved trigger accuracy for targeting phase sensitive applications and a FFT phase readout.

The new options also ensure improved SFDR due to new x4 (-SS2) and new x2 (-SS1) oversampling interpolation and guarantee SS-OCT synchronization for A-scan and B-scan trigger, enabling better image clarity and quality. Moreover, swept source maximum analysis depth is independent of the k-clock frequency, allowing adjustment of the maximum depth range being done by changing sample rate. Differences between the k-clock and OCT optical path can be compensated electronically with a programmable delay of ±64 ns.

“These new SS-OCT options enables usage of a fast acquisition running up to 200 kHz scan rate,” said Daniel Aebischer, special OEM applications project manager for digitizers, Keysight’s Communications Solutions Group. “This capability is critical in some applications, such as cardiovascular when the blood stream has to be interrupted in order to take the measurement. Increasing speed is essential even in gastrointestinal, endoscopic applications when continuous acquisition is required to sustain the data flow.”

Both -SS2/-SS1 options are available on the Keysight U5303A, a compact dual-channel ADC card delivering high dynamic range and high effective number of bits (ENOB) for enhanced image quality. As part of the OEMs development tool environment, a dedicated OCT GUI with C++ API and Labview support are provided.

The real-time SS-OCT processing engine was developed using Keysight’s U5340A FPGA development kit. OEMs also can develop their own real-time processing engine. This gives way to reusability from one ADC technology to another.

Our hardware allows OEM to see smaller and deeper by preserving the signal integrity and detecting the smallest signals, whilst our complete offering minimizes risks with ease of integration and reduces time-to-market.


“ At Keysight we take your measurements to heart… ”

For more information about OCT, order our new brochure “High-Speed Digitizer Technology Expertise for OCT Applications”. Contact us at


Keysight at MEDTEC Japan

Find here more info about our participation to MEDTEC Japan, the Asia’s largest tradeshow & conference dedicated to the design & manufacture of medical devices:

More news about OCT imaging capabilities available here

With optical swept sources in the longer wavelength range, new imaging capabilities exist that have not been addressable with time domain or camera based OCT systems. The solution was designed using Keysight’s U5340A FPGA development kit, allowing portability of the OCT signal processing IP to other Keysight data acquisition cards, including future releases. There is no need for internal circuitry dedicated to OCT, and the easy migration of the processing IP is a key to future OCT technology developments.

Check this out:

OCT-Core Flyer (2)

12-bit High-Speed PCIe ADC Card Available with Optical Coherence Tomography Technology

Keysight High-Speed Digitizers Team announces the U5303A high-speed data acquisition 12-bit PCIe® card, in collaboration with YellowSys, a provider of IP processing firmware and software, is now available with an option dedicated to the optical coherence tomography (OCT) technology.

Our PCIe digitizer in an OCT swept source engine

Image description: Follow this link to be routed to image related article. You see here on the right images captured with a 3D OCT system compare with ERM images on the left.  

We are pleased to publish the following press release which has been showing on the optical coherence tomography reference website  EXALOS and YellowSys team up with Agilent Technologies’ High-Speed Data Acquisition team to offer high-performance real-time swept source OCT engines.

 EXALOS AG (Switzerland) today announced that it has teamed up with the high-speed data acquisition team of Agilent Technologies Inc. and with the software/firmware team of YellowSys to offer real-time engines for swept source optical coherence tomography (SS-OCT) applications.