Wasatch Photonics takes Spectral Domain OCT to 1300 nm
Wasatch Photonics Inc. announced 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.
“The new OCT system in 1300-nm range is a result of our continued commitment to the OCT technology,” said Mike Sullivan, General Manager of Wasatch Photonics. “Our OCT spectrometers and 800-nm OCT systems have been successful beyond our expectations. We continued with our vision of helping the OCT community and developed equally effective solutions in the 1300-nm wavelength range. It was a challenging task and I am proud of our engineering team for successful execution leading to the product launch.”
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.
“The 1300-nm system brings together our strengths in optical engineering, software development and manufacturing demonstrated in earlier generation of OCT systems at 800-nm,” said Nishant Mohan, Director of Product Management at Wasatch Photonics. “A commercially available 1300-nm SD-OCT engine that can operate at the rate of 70 KHz A-lines should open several new applications for optical coherence tomography,” he added.
OCT was invented at Massachusetts Institute of Technology (MIT) in the early 1990's and has become the largest revenue generator in the optical imaging market. The technique has gained wide acceptance in ophthalmology and intravascular imaging. OCT with its high resolution and several millimeters of penetration also is used in small animal imaging, plant biology and material inspection.
About Wasatch Photonics Inc.
Founded in 2002, Wasatch Photonics Inc. designs, manufactures and markets high-performance Raman spectrometers, Optical Coherence Tomography systems, enhanced holographic optics for optical networking, spectroscopy, test and measurement, and medical imaging applications. Their high-performance Volume Holographic Optic Elements (HOEs) and gratings are used in a diverse set of industries, including those in the defense and security, chemical manufacturing, pharmaceutical, medical, energy, education, computer, and electronics markets. Their products are based on proprietary holographic recording media and Dickson grating technologies.