Common-path optical coherence tomography for biomedical imaging and sensing

Jin U. Kang, Jae Ho Han, Xuan Liu, Kang Zhang

Research output: Contribution to journalArticlepeer-review

29 Scopus citations


This paper describes a development of a fiber optic common-path optical coherence tomography (OCT) based imaging and guided system that possess ability to reliably identify optically transparent targets that are on the micron scale; ability to maintain a precise and safe position from the target; ability to provide spectroscopic imaging; ability to imaging biological target in 3-D. The system is based on a high resolution fiber optic Common-Path OCT (CP-OCT) that can be integrated into various mini-probes and tools. The system is capable of obtaining >70K A-scan per second with a resolution better than 3 μm. We have demonstrated that the system is capable of one-dimensional real-time depth tracking, tool motion limiting and motion compensation, oxygen-saturation level imaging, and high resolution 3-D images for various biomedical applications.

Original languageEnglish (US)
Pages (from-to)1-13
Number of pages13
JournalJournal of the Optical Society of Korea
Issue number1
StatePublished - Mar 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics


  • Fiber optic sensor
  • Optical coherence tomography
  • Optical imaging


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