Cobra-S 800

High resolution, high speed and proven imaging performance

  • Imaging options from 615–950 nm
  • Premier optical design with superior SNR and subpixel resolution for greater image clarity
  • Proprietary VPH gratings for low polarization dependence and high efficiency
  • Sensitive, low-crosstalk camera and near-diffraction-limited optics for low sensitivity roll-off of <6 dB at 2.5 mm imaging depth
  • Scan rate up to 250 kHz with Camera Link or 20–130 kHz with USB 3.0 for easier system integration
  • Compact, robust and athermal design

Launched in 2017, the Cobra-S 800 is our original and most popular high-speed spectrometer for near infrared OCT laboratory research. It is used in research applications in ophthalmology and materials processing as well as more specialized techniques like polarization-sensitive OCT (PS-OCT) and optical coherence elastography (OCE).

Widely cited in literature, we continuously marvel how this enabling technology is helping academics push the boundaries of OCT research.

CS800-840/120
CS800-850/145
CS800-840/180
CS800-695/160
CS800-780/195
CS800-800/305
Wavelength Range (typ.)
778–897 nm
777–924 nm
749–928 nm
616–774 nm
682–878 nm
647–952 nm

Bandwidth (typ.)

119 nm
147 nm
179 nm
158 nm
196 nm
305 nm

Imaging Depth (typ.)

3.0 mm
2.5 mm
2.0 mm
1.5 mm

1.5 mm

1.0 mm

Spectral Resolution (typ.)

0.06 nm

0.07 nm
0.09 nm
0.08 nm
0.10 nm
0.15 nm

Axial Resolution (typ.)

2.6 µm
2.2 µm
1.7 µm
1.4 µm
1.4 µm
0.9 µm
Max Line Rate
20 kHz, 80 kHz, 130 kHz or 250 kHz
Pixels
2048
Interface
USB 3.0 (up to 130 kHz) or Camera Link (up to 250 kHz)
Dimensions (L x W x H)
188 x 62 x 97 mm
240 x 62 x 97 mm

Weight (approx.)

1.4 kg
2.0 kg
  • •

    USB-3.0: 20kHz, 80kHz, 130kHz
  • •

    Camera Link: 250kHz *

* Lower-speed configurations available on extended lead-time.

The Cobra-S 800 offers superior roll-off performance as compared to traditional OCT spectrometers, as can be seen in this comparison of signal with imaging depth. With less roll-off, much deeper structures can be imaged clearly than is expected of typical 800 nm imaging.

  • •

    Ophthalmology
  • •

    Angiography
  • •

    Vibrometry
  • •

    Real-time 3D Imaging

Compatible with Wasatch Photonics’ SDKs for rapid data access and control in development environments (e.g., C++, LabVIEW, MATLAB).

WAVELENGHTH BAND (nm)

CENTER WAVELENGHTH (nm)

BANDWIDTH (nm)

CAMERA SPEED (kHz)

Camera Type and Pixel
Camera Interface
Camera Package
λλλ
λcλcλc
λBWλBW
SS
CAM
CONN
X
550, 800
e.g. 550, 840
e.g. 80, 125, 305

Up to 130 kHz (USB 3.0)

or up to 250 kHz

(Camera Link only)

e2v Octoplus, 2048 px
Camera Link or USB 3.0

O = Organic

[Blank] = Ceramic

(default/standard)

CS-λλλ-λcλcλc-λBWλBW-SS-CAM-CONN-X

Better roll-off performance and greater camera sensitivity enables visualization of deep vasculature in the dermis.
OCT angiography scans captured with the Cobra-S 800 exhibit reduced motion artifacts due to the high speed of imaging, in addition to high resolution.

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