Broadband sources for optical coherence tomography

The SuperK OCT sources are broadband low noise sources designed for optical coherence tomography. Paired with a broadband spectrometer, these sources gives the same performance as Ti:Sapphire-based OCT systems at much low cost, lower foot-print and with great mobility and robustness.

The SuperK EXTREME OCT series shares the same robust platform as our standard SuperK EXTREME systems and can be run 24/7 if needed.

The sources can be used for optical coherence tomography both in the visible wavelength range as well as in the 1300 nm region.

The ultra-broad output and low noise make SuperK supercontinuum lasers ideal OCT sources when micron resolution is needed or when you need a special wavelength range.

Reliability and long lifetime

The core of the SuperK systems is based on the world-renowned Crystal Fibre Photonic Crystal Fiber (PCF) technology, which has been deployed in commercial and academic markets for over a decade.  NKT Photonics is the largest manufacturer of PCF technology and reliability, quality and performance are ensured through DIN ISO 9000 certified processes.

Continuous testing of multiple systems during and after the development phase of the SuperK systems has ensured the longest continuous running lifetime in the market.



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Our OCT optimized supercontinuum sources comes in two different colors - red and white.

 Model Visible Power
EXR-9 OCT 900 mW
EXW-4 OCT 400 mW
EXU-6 OCT 600 mW
SuperK EXTREME OCT typical output

SuperK EXTREME OCT typical RIN


Master seed laser pulse ~5 ps
Typical RIN See plot
Polarization Unpolarized
Beam output Gaussian, single mode
M2 < 1.1
Output options Collimated (standard)
Divergent (on request)
Length of output fiber 1.5 m
Beam diameter ~1 mm at 530 nm
~2 mm at 1100 nm
~3 mm at 2000 nm
Beam Divergence (half angle) < 5 mrad
Beam Pointing Accuracy1) < 1 mrad
Beam Pointing Stability < 50 µrad
Typical single mode fiber coupling efficiency >70 %

Mechanical / Electrical

Computer Interface USB 2.0
Operation Voltage 100-240 VAC 50/60 Hz
Power Consumption
Door Interlock Connector 2) 2-pin LEMO
External Bus interface 3) 15-pin sub-D
System Cooling Air Cooled
Operation Temperature +18o to +30oC
Storage Temperature -10o to +60oC
Dimensions (WxHXL) 443 x 252.3 x 421.7 mm3
Weight 18 kg (19 kg with pulse picker)
Humidity 20-80 % RH

1) Measured relative to the mechanical axis running through the center of the collimator
2) The SuperK Extreme is a Class 4 laser and is required to be connected to a door interlock/circuit
3) External communication and power supply port for accessories




Low noise

The SuperK EXTREME OCT series is the supercontinuum laser on the market with the lowest noise. It is optimized for low noise performance to yield high-contrast low-noise images in OCT systems and in the performance matches that of large bulky Ti:Sapphire lasers.

Below are shown two OCT images of a human eye. The image on the right is recorded using a SuperK EXTREME OCT source, while the image on the left is obtained using a Ti:Sapphire laser. Both images are recorded by Angelika Unterhuber from Prof. Dr. Wolfgang Drexlers group at Medical University Vienna.



All NKT Photonics products are produced under our quality management system certified in accordance with the ISO 9001:2015 standard. Force_ISO_logo Laser_warning_class_4