OSA's Digital Library

Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 16 — Aug. 6, 2007
  • pp: 10103–10122

SNR enhancement through phase dependent signal reconstruction algorithms for phase separated interferometric signals

Emily J. McDowell, Marinko V. Sarunic, Zahid Yaqoob, and Changhuei Yang  »View Author Affiliations


Optics Express, Vol. 15, Issue 16, pp. 10103-10122 (2007)
http://dx.doi.org/10.1364/OE.15.010103


View Full Text Article

Enhanced HTML    Acrobat PDF (962 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We report several signal reconstruction algorithms for processing phase separated homodyne interferometric signals. Methods that take advantage of the phase of the signal are experimentally shown to achieve a signal-to-noise ratio (SNR) improvement of up to 5 dB over commonly used algorithms. To begin, we present a derivation of the SNR resulting from five image reconstruction algorithms in the context of a 3×3 fiber-coupler based homodyne optical coherence tomography (OCT) system, and clearly show the improvement in SNR associated with phase-based algorithms. Finally, we experimentally verify this improvement and demonstrate the enhancement in contrast and improved image quality afforded by these algorithms through homodyne OCT imaging of a Xenopus laevis tadpole. These algorithms can be generally applied in signal extraction processing where multiple phase separated measurements are available.

© 2007 Optical Society of America

OCIS Codes
(110.4280) Imaging systems : Noise in imaging systems
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(170.3880) Medical optics and biotechnology : Medical and biological imaging
(170.4500) Medical optics and biotechnology : Optical coherence tomography

ToC Category:
Imaging Systems

History
Original Manuscript: June 19, 2007
Revised Manuscript: July 20, 2007
Manuscript Accepted: July 24, 2007
Published: July 26, 2007

Virtual Issues
Vol. 2, Iss. 9 Virtual Journal for Biomedical Optics

Citation
Emily J. McDowell, Marinko V. Sarunic, Zahid Yaqoob, and Changhuei Yang, "SNR enhancement through phase dependent signal reconstruction algorithms for phase separated interferometric signals," Opt. Express 15, 10103-10122 (2007)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-15-16-10103


Sort:  Year  |  Journal  |  Reset  

References

  1. G. Lai and T. Yatagai, "Generalized phase-shifting interferometry," J. Opt. Soc. Am. A 8,822-827 (1991). [CrossRef]
  2. I. Yamaguchi and T. Zhang, "Phase-shifting digital holography," Opt. Lett. 22,1268-1270 (1997). [CrossRef] [PubMed]
  3. E. J. Post, "Sagnac effect," Rev. Mod.Phys. 39,475 (1967). [CrossRef]
  4. D. A. Jackson, A. D. Kersey and A. C. Lewin, "Fiber gyroscope with passive quadrature detection," Electron. Lett. 20,399-401 (1984). [CrossRef]
  5. S. K. Sheem, "Fiberoptic gyroscope with 3x3 directional coupler," Appl. Phys. Lett. 37,869-871 (1980). [CrossRef]
  6. Z. Yaqoob, J. G. Wu, X. Q. Cui, X. Heng and C. H. Yang, "Harmonically-related diffraction gratings-based interferometer for quadrature phase measurements," Opt. Express 14,8127-8137 (2006). [CrossRef] [PubMed]
  7. J. G. Wu, Z. Yaqoob, X. Heng, L. M. Lee, X. Q. Cui and C. H. Yang, "Full field phase imaging using a harmonically matched diffraction grating pair based homodyne quadrature interferometer," Appl. Phys. Lett. 90, (2007). [CrossRef]
  8. M. A. Choma, C. H. Yang and J. A. Izatt, "Instantaneous quadrature low-coherence interferometry with 3x3 fiber-optic couplers," Opt. Lett. 28,2162-2164 (2003). [CrossRef] [PubMed]
  9. Z. Yaqoob, J. Fingler, X. Heng and C. Yang, "Homodyne en face optical coherence tomography," Opt. Lett. 31,1815-1817 (2006). [CrossRef] [PubMed]
  10. A. W. Snyder, "Coupled-mode theory for optical fibers," J. Opt. Soc. Am. 62,1267-1277 (1972). [CrossRef]
  11. S. K. Sheem, "Optical fiber interferometers with 3x3 directional couplers - analysis," J. Appl. Phys. 52,3865-3872 (1981). [CrossRef]
  12. M. V. Sarunic, M. A. Choma, C. H. Yang and J. A. Izatt, "Instantaneous complex conjugate resolved spectral domain and swept-source OCT using 3x3 fiber couplers," Opt. Express 13,957-967 (2005). [CrossRef] [PubMed]
  13. M. V. Sarunic, B. E. Applegate and J. A. Izatt, "Real-time quadrature projection complex conjugate resolved Fourier domain optical coherence tomography," Opt. Lett. 31,2426-2428 (2006). [CrossRef] [PubMed]
  14. J. R. Barry and E. A. Lee, "Performance of coherent optical receivers," Proc. IEEE 78,1369-1394 (1990). [CrossRef]
  15. L. G. Kazovsky, "Optical heterodyning versus optical homodyning: A comparison," J. Opt. Commun. 6,18-24 (1985).
  16. S. D. Personic, "Image band interpretation of optical heterodyne noise," AT&T Tech. J. 50, 213-& (1971).
  17. E. J. McDowell, X. Cui, Y. Yaqoob and C. Yang, "A generalized noise variance analysis model and its application to the characterization of 1/f noise in homodyne interferometry," Opt. Express 15, 3833-3848(2007). [PubMed]
  18. M. E. Smith and J. H. Strange, "NMR techniques in materials physics: A review," Meas. Sci. Technol. 7,449-475 (1996). [CrossRef]
  19. A. H. Andersen and J. E. Kirsch, "Analysis of noise in phase contrast MR imaging," Med. Phys 23,857-869 (1996). [CrossRef] [PubMed]
  20. C. D. Constantinides, E. Atalar and E. R. McVeigh, "Signal-to-noise measurements in magnitude images from NMR phased array," Mag. Res. Med. 38,852-857 (1997). [CrossRef]
  21. D. Erdogmus, R. Yan, E. G. Larsson, J. C. Principe and J. R. Fitzsimmons, "Image construction methods for phased array magnetic resonance imaging," J. Magn. Reson. Imaging 20,306-314 (2004). [CrossRef] [PubMed]
  22. N. Aydin and H. S. Markus, "Time-scale analysis of quadrature Doppler ultrasound signals," IEE P-Sci.Meas. Tech. 148,15-22 (2001). [CrossRef]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited