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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 12 — Jun. 11, 2007
  • pp: 7642–7652

Electro-optic phase modulation in ridge waveguides of epitaxial K0.95Na0.05Ta0.71Nb0.29O3 thin films

Christian Herzog, Steffen Reidt, Gorazd Poberaj, and Peter Günter  »View Author Affiliations

Optics Express, Vol. 15, Issue 12, pp. 7642-7652 (2007)

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Electro-optic modulation at λ= 1.5 μm has been demonstrated for the first time to the best of our knowledge in a ridge waveguide phase modulator produced in cubic potassium sodium tantalate niobate thin films epitaxially grown on potassium tantalate substrates exploiting the large quadratic electro-optic Kerr coefficient of R11 = 8.2×10-17 m2/V2. The relative permittivity, Kerr coefficient, and refractive index have been evaluated for the thin film crystal and are compared to the values measured in bulk crystals. The half-wave voltage times length figure of merit of the modulator has been measured to be Vπl = 38 Vcm at room temperature.

© 2007 Optical Society of America

OCIS Codes
(160.2100) Materials : Electro-optical materials
(160.4760) Materials : Optical properties
(230.7380) Optical devices : Waveguides, channeled
(310.2790) Thin films : Guided waves
(310.6860) Thin films : Thin films, optical properties

ToC Category:
Thin Films

Original Manuscript: April 24, 2007
Revised Manuscript: May 23, 2007
Manuscript Accepted: May 23, 2007
Published: June 6, 2007

Christian Herzog, Steffen Reidt, Gorazd Poberaj, and Peter Günter, "Electro-optic phase modulation in ridge waveguides of epitaxial K0.95Na0.05Ta0.71Nb0.29O3 thin films," Opt. Express 15, 7642-7652 (2007)

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  1. F. S. Chen, J. E. Geusic, S. K. Kurtz, J. G. Skinner, and S. H. Wemple, "Light modulation and beam deflection with potassium tantalate-niobate crystals," J. Appl. Phys. 37, 388 (1966). [CrossRef]
  2. S. Triebwasser, "Study of ferroelectric transitions of solid-solution single crystals of KNbO3-KTaO3," Phys. Rev. 114, 63-70 (1959). [CrossRef]
  3. R. Gutmann, J. Hulliger, and H. Wuest, "Growth of paraelectric and ferroelectric epitaxial layers of KTa1-xNbxO3 by liquid-phase epitaxy," Ferroelectrics 134, 291-296 (1992). [CrossRef]
  4. R. Gutmann, J. Hulliger, and E. Reusser, "Liquid-phase epitaxy of lattice-matched KTa1-xNbxO3 grown on KTaO3 substrate," J. Cryst. Growth 126, 578-588 (1993). [CrossRef]
  5. H. Pierhofer, Z. Sitar, F. Gitmans, H. Wuest, and P. Gunter, "New semiconducting substrate for heteroepitaxial growth of K1-yNayTa1-xNbxO3," Ferroelectrics 201, 269-275 (1997). [CrossRef]
  6. L. A. Knauss, K. S. Harshavardhan, H. M. Christen, H. Y. Zhang, X. H. He, Y. H. Shih, K. S. Grabowski, and D. L. Knies, "Growth of nonlinear optical thin films of KTa1-xNbxO3 on GaAs by pulsed laser deposition for integrated optics," Appl. Phys. Lett. 73, 3806-3808 (1998). [CrossRef]
  7. S. Toyoda, K. Fujiura, M. Sasaura, K. Enbutsu, A. Tate, M. Shimokozono, H. Fushimi, T. Imai, K. Manabe, T. Matsuura, and T. Kurihara, "Low-driving-voltage electro-optic modulator with novel KTa1-xNbxO3 crystal waveguides," Jpn. J. Appl. Phys. 43, 5862-5866 (2004). [CrossRef]
  8. K. Nakamura, J. Miyazu, M. Sasaura, and K. Fujiura, "Wide-angle, low-voltage electro-optic beam deflection based on space-charge-controlled mode of electrical conduction in KTa1-xNbxO3," Appl. Phys. Lett. 89, 131115-1-131115-3 (2006).
  9. H. Y. Zhang, X. H. He, Y. H. Shih, K. S. Harshavardhan, and L. A. Knauss, "Optical and nonlinear optical study of KTa0.52Nb0.48O3 epitaxial film," Opt. Lett. 22, 1745-1747 (1997). [CrossRef]
  10. C. Herzog, S. Aravazhi, A. Guarino, A. Schneider, G. Poberaj, and P. Gunter, "Epitaxial K1-xNaxTa0.66Nb0.34O3 thin films for optical waveguiding applications," J. Opt. Soc. Am. B 24, 829-832 (2007). [CrossRef]
  11. R. Gutmann, "Liquid phase epitaxy of para- and ferroelectric KTa1-xNbxO3," Ph.D. dissertation (ETH Zurich No. 10095, 1993).
  12. C. Herzog, G. Poberaj, and P. Gunter, "Electro-optic behavior of lithium niobate at cryogenic temperatures," submitted to Opt. Commun. (2007).
  13. J. E. Geusic, S. K. Kurtz, L. G. Vanuitert, and S. H. Wemple, "Electro-optic properties of some ABO3 Perovskites in paraelectric phase," Appl. Phys. Lett. 4, 141 (1964). [CrossRef]
  14. K. Buse, F. Havermeyer, L. Glabasnia, K. Schlomp, and E. Kratzig, "Quadratic polarization-optic coefficients of cubic KTa11-xNbxO3 crystals," Opt. Commun. 131, 339-342 (1996). [CrossRef]
  15. http://www.c2v.nl/fr index.shtml?/products/software/olympios-software.shtml>
  16. K. Fujiura and K. Nakamura, "KTN optical waveguide devices with an extremely large electro-optic effect," Proc. SPIE 5623, 518-532 (2005). Conference on Passive Components and Fiber-based Devices NOV 09-11, 2004 Beijing, Peoples Republic China.
  17. T. Itoh, M. Sasaura, S. Toyoda, K. Manabe, K. Nakamura, and K. Fujiura, "High-frequency response of electrooptic single crystal KTaxNb1-xO3 in paraelectric phase," Conference on Lasers and Electro-Optics 2005, paper JTuC36, Baltimore, USA (May 2005).

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