Low-noise broadband light generation from optical fibers for use in high-resolution optical coherence tomography

J Opt Soc Am A Opt Image Sci Vis. 2005 Aug;22(8):1492-9. doi: 10.1364/josaa.22.001492.


Broadband light generation from a single-mode optical fiber was developed for high-resolution optical coherence tomography (OCT). No noise amplification was observed for light broadened by self-phase modulation. The investigation showed that the intensity noise of light broadened by self-phase modulation in a single-mode optical fiber was much lower than that of continuum light from a microstructure fiber (MSF). The spectral width of a femtosecond input laser pulse was successfully broadened by a factor of 11, and a coherence length of 3.7 microm was achieved with this source. The application of light broadened by a single-mode optical fiber and MSF was compared for use in OCT imaging. The results showed that a single-mode fiber with a small core diameter is a useful way to generate low-noise, broadband light for high-resolution OCT imaging.

Publication types

  • Evaluation Study
  • Research Support, N.I.H., Extramural
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Algorithms*
  • Equipment Design
  • Equipment Failure Analysis
  • Fiber Optic Technology / instrumentation*
  • Fiber Optic Technology / methods
  • Image Enhancement / instrumentation*
  • Image Enhancement / methods
  • Image Interpretation, Computer-Assisted / instrumentation*
  • Image Interpretation, Computer-Assisted / methods*
  • Optical Fibers
  • Reproducibility of Results
  • Sensitivity and Specificity
  • Tomography, Optical Coherence / instrumentation*
  • Tomography, Optical Coherence / methods