C-RED 1: Ultra Low-Noise SWIR MCT Camera

C-RED 1: Ultra Low-Noise SWIR MCT Camera

Sensor Type

e-APD HgCdTe (MCT)

Resolution - Pixel pitch

320 x 256 px (0.08 MP)

Pixel pitch

24 µm

Shutter Mode - Frame rate full frame

Rolling - 3,500 Hz or 1,750 Hz in CDS mode

Readout Noise

<1 e-

Interface

CameraLink (Full)

The recent discovery of electron initiated avalanche photodiodes (e-APD) using mercury cadmium telluride (MCT) semiconductor materials permitted a significant breakthrough in short wave (1-2.5 μm) infrared imaging. These diodes have an avalanche gain of up to 100 with an excess noise factor near 1, showing that the avalanche process is quasi deterministic. The hybridization of 320×256 e-APD arrays on silicon read-out circuitry permits to build imagers with fast readout rates (in the kHz range) while having at the same time a subelectron readout noise , which is a major improvement compared to previous infrared imaging technologies. The technology used to manufacture e-APDs is similar to the one used for standard HgCdTe diodes with a 100% fill factor, therefore a high quantum efficiency (typically QE=70-75 %) is maintained.

Today this technology is made available to everybody : C-RED1 is opening a new era in terms of sensitivity and speed in the SWIR scientific cameras domain.

C-RED1 is using a unique 320×256 pixels HgCdTe e-APD array with 24 μm pixel pitch. The sensor cutoff wavelength is 2.5 μm and it allows sub-electron readout noise, taking advantage of the e-APD noise-free multiplication gain and non-destructive readout ability. C-RED is also capable of multiple regions of interest (ROI) readout allowing faster image rate (10’s of KHz) while maintaining unprecedented sub-electron readout noise.

The sensor is placed in a sealed vacuum environment and cooled down to cryogenic temperature (80K) using an integrated pulse tube, with a high reliability (MTBF > 90 000 h) much higher than standard Stirling coolers used usually with cooled infrared arrays.

Description

C-RED 1 is the Ultra Low Noise SWIR MCT camera uses a unique 320×256 pixels HgCdTe e-APD array with 24 μm pixel pitch. The sensor cutoff wavelength is 2.5 μm. It allows sub-electron readout noise, taking advantage of the e-APD noise-free multiplication gain and non-destructive readout ability. C-RED 1 Ultra Low Noise SWIR MCT camera is also capable of multiple regions of interest (ROI) readout. This allows faster image rate (10’s of KHz) while maintaining unprecedented subelectron readout noise.

The sensor is placed in a sealed vacuum environment and cooled down to cryogenic temperature (80K) using an integrated pulse tube, with a high reliability (MTBF > 90 000 h) much higher than standard stirling coolers used usually with cooled infrared arrays.

In its default full frame mode, the C-RED One makes it possible to acquire frames at 3.5 kHz. In its smallest window mode, the camera can run a little over 71 kHz. The high sensitivity of the camera, coupled with the high frame rate, are real game changers in the realm of high-contrast imaging and really make it possible to envision driving a deformable mirror directly from the focal plane. At these speeds, speckles don’t stand a chance!

8 Reasons to go for a C-RED SWIR Camera

FASTER

EACH C-RED CAMERA IS THE FASTEST ONE IN ITS CATEGORY
600 FPS FF for our InGaAs VGAs and 3500 FPS FF for our e-APD MCT QVGA.

LOWER NOISE

AT THE SAME TIME, THE C-RED CAMERAS ALSO OFFER THE LOWEST NOISE POSSIBLE IN THEIR CATEGORY:
From subelectron RON with C-RED One, to below 30e RON for C-RED 2 and 3.

ULTRA LOW DARK

UP TO SEVERAL MINUTES EXPOSURE TIMES IN SWIR
Our engineers have worked hard to optimize dark level on all C-RED cameras.

MORE DYNAMIC

93 dB AND TRUE 16 BITS.
Enhance your vision with our HDR module.

LESS IS MORE

AFFORDABLE OEM UNCOOLED VERSION FOR EASY INTEGRATION IN ANY SYSTEM.
High speed, low noise, low SWaP, low price…

BLACK IS BLACK

UNCOOLED SWIR IS NOT SUITABLE FOR YOUR APPLICATION? NOT AT ALL!
Our adaptive BIAS allows to use our uncooled C-RED 3 in a variable temperature environment.

MORE RED

NEED TO SEE FURTHER IN THE RED ?
Try our C-RED 2 Extended Range : you’ll see more red with C-RED
Up to 2.2 μm in InGaAs and 2.5 μm in MCT.

EASY

OUR CAMERAS ARE COMING WITH OUR GUI.
Including many NUC functions based on our SDK which allows to develop your own solution under Linux, Windows, Jetson…
This environment makes all C-RED cameras compatible with your acquisition software : μManager, Labview, Python, C, C++, and more.