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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 23 — Nov. 12, 2007
  • pp: 15576–15582

A novel Zn-indiffused mode converter in x-cut lithium niobate

Ruey-Ching Twu, Hsuan-Hsien Lee, Hao-Yang Hong, and Chin-Yau Yang  »View Author Affiliations

Optics Express, Vol. 15, Issue 23, pp. 15576-15582 (2007)

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A novel Zn-indiffused mode converter has been proposed and experimentally studied in an x-cut/z-propagation lithium niobate at a wavelength of 0.632 μm for the first time. The optimized phase-matching and mode-conversion voltages for maximum conversion are 12 V and -5 V, respectively. The results show that the proposed mode converter can operate with a stable conversion efficiency of about 99.5% between TM and TE polarizations at a throughput power of 25 μW in a period of 60 min. Moreover, a comparison of optical power-handling stability between the Ti-indiffused and the Zn-indiffused channel waveguides, was explored. The encouraging results indicate that the Zn-indiffused waveguide has better power stability than the Ti-indiffused waveguide. Thus, it is expected that the proposed mode converter will have better stability than the conventional Ti-indiffused ones, especially in the visible wavelength region.

© 2007 Optical Society of America

OCIS Codes
(130.3120) Integrated optics : Integrated optics devices
(160.3730) Materials : Lithium niobate
(230.2090) Optical devices : Electro-optical devices

ToC Category:
Integrated Optics

Original Manuscript: September 10, 2007
Revised Manuscript: November 6, 2007
Manuscript Accepted: November 7, 2007
Published: November 9, 2007

Ruey-Ching Twu, Hsuan-Hsien Lee, Hao-Yang Hong, and Chin-Yau Yang, "A novel Zn-indiffused mode converter in x-cut lithium niobate," Opt. Express 15, 15576-15582 (2007)

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  1. C. Li, X. Cui, I. Yamaguchi, M. Yokota, and T. Yoshino, "Optical voltage sensor using a pulse-controlled electrooptic quarter waveplate," IEEE Trans. Instrum. Meas. 54, 273-277 (2005). [CrossRef]
  2. R. C. Alferness, "Electrooptic guided-wave device for general polarization transformations," IEEE J. Quantum Electron. 17, 965-969 (1981). [CrossRef]
  3. S. Thaniyavarn, "Wavelength independent, optical damage immune z-propagation LiNbO3 waveguide polarization converter," Appl. Phys. Lett. 47, 674-677 (1985). [CrossRef]
  4. T. Kawazoe, K. Satoh, I. Hayashi, and H. Mori, "Fabrication of integrated-optic polarization controller using z-propagating Ti-LiNbO3 waveguides," J. Lightwave Technol. 10, 51-56 (1992). [CrossRef]
  5. R. C. Alferness and L. L. Buhl, "Tunable electro-optic waveguide TE-TM converter/wavelength filter," Appl. Phys. Lett. 40, 861-862 (1982). [CrossRef]
  6. N. A. Sanford, J. M. Connors, and W. A. Dyes, "Simplified z-propagating DC bias stable TE-TM mode converter fabricated in y-cut lithium niobate," J. Lightwave Technol. 6, 898-901 (1988). [CrossRef]
  7. T. J. Wang, W. S. Lin, and F. K. Liu, "Integrated-optic biosensor by electro-optically modulated surface plasmon resonance," Biosens. Bioelectron. 22, 1441-1446 (2007). [CrossRef]
  8. Y. Fujii, Y. Otsuka, and A. Ikeda, "Lithium niobate as an optical waveguide and its application to integrated optics," IEICE Trans. Electron.E 90-C, 1081-1089 (2007). [CrossRef]
  9. T. Fujiwara, S. Sato, H. Mori, and Y. Fujii, "Suppression of crosstalk drift in Ti: LiNbO3 waveguide switches," J. Lightwave Technol. 6, 909-915 (1988). [CrossRef]
  10. H. Nagata, K. Kiuchi, S. Shimotsu, and J. Ogiwara, "Estimation of direct current bias and drift of Ti: LiNbO3 optical modulators," J. Appl. Phys. 76, 1405-1408 (1994). [CrossRef]
  11. Y. Kong, J. Wen, and H. Wang, "New doped lithium niobate crystal with high resistance to photorefraction-LiNbO3:In," Appl. Phys. Lett. 66, 280-281 (1995). [CrossRef]
  12. T. Fujiwara, R. Srivastava, X. Cao, and R. V. Ramaswamy, "Comparison of photorefractive index change in proton-exchanged and Ti-diffused LiNbO3 waveguides," Opt. Lett. 18, 346-348 (1993). [CrossRef] [PubMed]
  13. J. D. Bull, NicolasA. F. Jaeger, and F. Rahmatian, "A new hybrid current sensor for high-voltage applications," IEEE Trans. Power Del. 20, 32-38 (2005). [CrossRef]
  14. B. M. Haas and T. E. Murphy, "A simple, linearized, phase-modulated analog optical transmission system," IEEE Photon. Technol. Lett. 19, 729-731 (2007). [CrossRef]
  15. R. C. Twu, "Zn-diffused 1×2 balanced-bridge optical switch in a y-cut lithium niobate," IEEE Photon. Technol. Lett. 19, 1269-1271 (2007). [CrossRef]
  16. I. Suárez, R. Matesanz. I. Aguirre de Cárcer, P. L. Pernas, F. Jaque, R. Blasco, and G. Lifante, "Antibody binding on LiNbO3:Zn waveguides for biosensor applications," Sens. Actuators B-Chem. 107, 88-92 (2005). [CrossRef]
  17. Ming, C. B. E. Gawith, K. Gallo, M. V. O’Connor, G. D. Emmerson, and P. G. R. Smith, "High conversion efficiency single-pass second harmonic generation in a zinc-diffused periodically poled lithium niobate waveguide," Opt. Express 13, 4862-4868 (2005). [CrossRef] [PubMed]

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