Wasatch Photonics

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Cobra VIS OCT Spectrometers

Unveil a new dimension in 3D imaging

Cobra VIS OCT spectrometerHemoglobin graphApplications

  • Angiography
  • 3D blood oxygenation mapping
  • Explore pathology & structure
  • High-res retinal imaging
  • 3D microscopy

Cobra VIS Setup Guide

Access the benefits of visible OCT with the Cobra VIS. It has been designed with all the benefits of our flagship Cobra-S spectrometer for high resolution, high speed imaging at visible wavelengths spanning 400-700 nm.

Use of visible wavelengths allows spectroscopic information about blood oxygenation to be collected simultaneously with OCT images, adding another dimension to structural and functional imaging of tissues. This facilitates live 3D mapping of perfusion in tissues, with tremendous potential benefits in fundamental research, diagnostics, and clinical care.

Resolution improves as the square of the center wavelength, which gives vis-OCT a tremendous advantage. With up to 2x better resolution than 800 nm OCT, vis-OCT allows improved discrimination and measurement of structures. As experts in spectrometer design, we have developed diffraction-limited optics for use in the Cobra VIS, compensating also for chromatic aberration across the full visible band to ensure maximum sensitivity and minimum roll-off for superior images.

Our industry-proven high throughput spectrometer design is paired with robust, athermal optomechanics and the fastest camera on the market for extremely high resolution imaging at up to 250 kHz. High speed is particularly important in vis-OCT, which can suffer from motion artifacts when performance at low line rates.

Cobra VIS visible range spectrometers can be used for ultra high speed OCT imaging in the 400-700 nm range in research, industrial and OEM solutions. Let our expert team put together a configuration that is right for your application – contact us at info@wasatchphotonics.com.

Download the Cobra VIS Datasheet

>> USB 3.0 interface option

Reap the benefits of speed and flexibility at reduced cost with USB 3.0 connectivity. USB 3.0 eliminates the need for an expensive camera link card and allows compact computers like personal laptops to be used for OCT imaging. The power of USB 3.0 combined with our dedicated software libraries facilitates easy integration of high-speed OCT into your imaging platform.


Imaging Depth1.9 mm1.3 mm0.9 mm0.7 mm
Wavelength Range515-595 nm515-630 nm500-700 nm400-550 nm
Bandwidth80 nm115 nm200 nm150 nm
Spectral Resolution0.04 nm0.06 nm0.1 nm0.08 nm
Max Line Rate20, 80, 130, or 250 kHz
InterfaceNEW! >> USB 3.0 (up to 130 kHz) or Camera Link (up to 250 kHz)
Dimensions22 x 12 x 6.5 cm
Weight1.3 kg

Cobra VIS part numbers are of the format CS550-[CWL]/[BW]-[kHz]-[camera][pixels]-[interface], where the e2v OctoPlus camera is represented by “OC”, 2K denotes 2048 pixels, and the interface is either camera link (up to 250 kHz, denoted by “-CL”) or USB 3.0 (up to 130 kHz, , denoted by “-U3”). Imaging depth stated is the theoretical value, calculated in air.

Visit our OCT Image Gallery

Key Features

  • Imaging options from 400-700 nm
  • Premier optical design with superior SNR & subpixel resolution for greater image clarity

  • Exceptional sensitivity roll-off: 6 dB @ 1.2 mm

  • Up to 1.9 mm imaging depth (in air)
  • Industry-leading 250 kHz line scan rate

  • Sensitive, low crosstalk camera and near diffraction-limited optics enhance roll-off
  • Proprietary VPH gratings for low polarization dependence & highest efficiency

  • USB 3.0 interface option reduces the expense and complexity of system integration

  • OEM ready: robust, compact & athermal

Contact us at +1 919-544-7785 or info@wasatchphotonics.com to discuss your specific application or other wavelength & camera options.

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