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Biomedical Optics & Medical Imaging

Spectral domain OCT system

Wasatch Photonics, Inc

Wasatch Photonics Inc. announces the launch of a new spectral domain optical coherence tomography (OCT) system in the wavelength range of 1300-nm. The North Carolina-based systems division of the company adds to its repertoire of 800-nm OCT systems and OCT spectrometers.

The 1300-nm OCT to date is dominated by systems using swept-source lasers. With this launch, Wasatch Photonics hopes to bring the stability and simplicity of 800-nm spectral domain systems to the 1300-nm range. The optimized spectrometer allows the long imaging range using 2048 pixel spectrometer at speeds of up to 70,000 lines/sec.

Spectral-domain OCT uses a broadband light source and high-efficiency spectrometers to obtain spectral fringes for OCT imaging. This is in contrast to swept-source OCT, where a wavelength-swept laser is used to generate the spectral fringes. Despite its advantages of fewer moving parts and simpler electronics, SD-OCT has not been widely employed at 1300-nm, mainly due to lack of suitable spectrometers in this range. Wasatch's expertise in OCT spectrometers gave it a clear advantage in pioneering the 1300-nm systems.


wasatchphotonics.com