Applied Physics B

, Volume 97, Issue 1, pp 5–8 | Cite as

Grating coupled interferometry for optical sensing

  • Peter Kozma
  • Andras Hamori
  • Kaspar Cottier
  • Sandor Kurunczi
  • Robert Horvath
Rapid communication

Abstract

An interferometric sensor based on gratings on a planar waveguide is introduced. The device combines the advantages of known interference-based waveguide sensors with the simplicity of grating couplers. In the presented configuration, two parallel and coherent light beams, laterally separated in the direction of mode propagation, are coupled into a planar waveguide through a grating. One of the coupled beams is phase modulated using a periodically relaxing liquid crystal modulator, resulting in a time varying intensity signal at the end face of the waveguide. Refractive index changes within the waveguide section between the two coupling regions are monitored by observing characteristic changes in the intensity signal.

PACS

42.79 07.60 

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    K. Tiefenthaler, W. Lukosz, Thin Solid Films 126, 205 (1985) CrossRefADSGoogle Scholar
  2. 2.
    W. Lukosz, Sens. Actuators 29, 37 (1995) CrossRefGoogle Scholar
  3. 3.
    R.E. Kunz, Sens. Actuators B 38, 13 (1997) CrossRefGoogle Scholar
  4. 4.
    J.J. Ramsden, Phys. Rev. Lett. 71(2), 295 (1993) CrossRefADSGoogle Scholar
  5. 5.
    R. Horvath, H.C. Pedersen, N. Skivesen, D. Selmeczi, N.B. Larsen, Opt. Lett. 28, 1233 (2003) CrossRefADSGoogle Scholar
  6. 6.
    M.M. Abadla, M.M. Shabat, D. Jäger, Laser Phys. 14, 1231 (2004) Google Scholar
  7. 7.
    J. Voros, J.J. Ramsden, G. Csucs, I. Szendro, S.M. de Paul, M. Textor, N.D. Spencer, Biomaterials 23, 3699 (2002) CrossRefGoogle Scholar
  8. 8.
    R. Horvath, K. Cottier, H.C. Pedersen, J.J. Ramsden, Biosens. Bioelectron. 24(4), 799 (2008) CrossRefGoogle Scholar
  9. 9.
    K. Schmitt, B. Schirmer, C. Hoffmann, A. Brandenburg, P. Meyrueis, Biosens. Bioelectron. 22, 2591 (2007) CrossRefGoogle Scholar
  10. 10.
    R.G. Heideman, P.V. Lambeck, Sens. Actuators B 61, 100 (1999) CrossRefGoogle Scholar
  11. 11.
    W. Lukosz, Ch. Stamm, Sens. Actuators A 25, 185 (1991) CrossRefGoogle Scholar
  12. 12.
    G.H. Cross, A.S. Brand, J.F. Popplewell, L.L. Peel, M.J. Swann, N.J. Freeman, Biosens. Bioelectron. 19, 383 (2003) CrossRefGoogle Scholar
  13. 13.
    O. Gliko, N.A. Booth, P.G. Vekilov, Acta Crystallogr. Sect. D 58, 1622 (2002) Google Scholar
  14. 14.
    WO2008110026, published on September 18, 2008 Google Scholar

Copyright information

© Springer-Verlag 2009

Authors and Affiliations

  • Peter Kozma
    • 1
  • Andras Hamori
    • 1
  • Kaspar Cottier
    • 2
  • Sandor Kurunczi
    • 1
  • Robert Horvath
    • 1
  1. 1.Photonics DepartmentResearch Institute for Technical Physics and Materials ScienceBudapestHungary
  2. 2.Creoptix GmbHWädenswilSwitzerland

Personalised recommendations