Long imaging range optical coherence tomography based on a narrow line-width dual band Fourier domain mode-locked swept source

Jun Zhang; Pinghe Wang; Zhongping Chen

doi:10.1117/12.875997

16 February 2011 Long imaging range optical coherence tomography based on a narrow line-width dual band Fourier domain mode-locked swept source

Jun Zhang, Pinghe Wang, Zhongping Chen

Author Affiliations +

Proceedings Volume 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV; 78892P (2011) https://doi.org/10.1117/12.875997
Event: SPIE BiOS, 2011, San Francisco, California, United States

Abstract

A narrow line-width dual band Fourier domain mode-locked (FDML) swept source at center wavelength of 1310 nm for long imaging range high speed and high resolution Fourier domain optical coherence tomography was demonstrated. A fiber Fabry-Perot tunable filter working at multi-spectral band mode is used for wavelength selection in the FDML swept source. The interference signals in two spectral bands are separated into two channels for detection by use of WDM couplers with pass-bands matching the spectral bands of the Fabry-Perot tunable filter. The line-width of the output light from the swept source can be as narrow as 0.04 nm thanks to the small tuning range within each spectral band, while high axial resolution of the FDOCT system can still be obtained since the total scanning range combining multi bands is more than 100 nm.

Citation Download Citation

Jun Zhang, Pinghe Wang, and Zhongping Chen "Long imaging range optical coherence tomography based on a narrow line-width dual band Fourier domain mode-locked swept source", Proc. SPIE 7889, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XV, 78892P (16 February 2011); https://doi.org/10.1117/12.875997

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