Spectral domain random encoded compressive optical coherence tomography


Spectral domain random encoded compressive optical coherence tomography

NJIT Case No. 18-003


Inventors: Xuan Liu

Intellectual Property & Development status: Patent protection is pending.

NJIT is currently seeking commercial partners for the further development and commercialization of this opportunity.


Technology Brief:

Researchers at New Jersey Institute of Technology in the Department of Electric and Computer Engineering have invented a unique faster and efficient method for random sampling in the framework of compressed sensing to full recovery of the signal using a conventional electronic digitizer.


Electrical signals are conventionally sampled with uniform sampling intervals. Random sampling allows full recovery of a signal with much less sampled data points and therefore, can achieve a higher data acquisition speed and higher efficiency in utilizing the bandwidth of electronic devices. However, an electronic device naturally favors sampling at a uniform interval. Our approach provides a unique solution to address the need for random sampling in the framework of compressed sensing. The invention maps different frequency components of an optical signal to different spatial locations and imposes a strategically designed spatial modulation pattern to increase the amount of information carried by the optical signal that is subsequently sampled using traditional electronic digitizer.


This invention has a broad range of potential commercial applications. The direct impact of this invention is its capability to enable ultra high-speed optical coherence tomography (OCT) imaging to capture transient event in live organism. In addition to OCT, the disclosed technology may improve the speed of many optical imaging and sensing technologies for scientific research and clinical use. Moreover, the application of this technology is not limited to imaging. Light is one of the most important medium that carries information in modern society. This invention may be used to modulate the light used in telecommunication, to improve the bandwidth for fiber-optic communication and improve the speed of the network.



•       Higher data acquisition speed

•       Increased efficiency



•       Optical imaging

•       Fiber-optic communication


Inventors Bio:

Xuan Liu received her B.S. and M.S. degrees from Tsinghua University, and PhD degree from the Johns Hopkins University. She joined the NJIT as a faculty in 2014. Dr. Liu’s expertise lies in optical imaging, fiber optics, and medical instrument based on optical technologies. She has published more than 60 journal and conference papers. Dr. Liu’s current research is supported by New Jersey Institute of Technology and National Institutes of Health.




Patent Information:
Advanced Manufacturing
For Information, Contact:
Simon Nynens
VP, Business Incubation
New Jersey Institute of Technology
Xuan Liu
Patent Pending
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