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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 35, Iss. 9 — Mar. 20, 1996
  • pp: 1489–1491

Effect of water vapor in a y-cut lithium niobate waveguide

M. Ahmad, K. Chelapathi, and Y. G. K. Patro  »View Author Affiliations


Applied Optics, Vol. 35, Issue 9, pp. 1489-1491 (1996)
http://dx.doi.org/10.1364/AO.35.001489


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Abstract

In z-cut lithium niobate (LiNbO3) samples, surface damage has been observed after diffusion in a wet atmosphere, but recent reports show that with controlled flow of water vapor waveguides with good surface morphology and low loss can be obtained. Y-cut waveguides do not show any surface damage. Fabrication of y-cut waveguides diffused with controlled variation of water vapor in the ambient has not been reported to the best of our knowledge. We show that a minimum loss in y-cut waveguides is obtained at a particular water vapor content in the ambient, which is lower than the loss obtained for waveguides diffused in dry ambient. We have found a decrease in the waveguide loss to 0.3 dB/cm from 0.6 dB/cm for 1 mL of water vapor passed per hour as compared with a dry atmosphere.

© 1996 Optical Society of America

History
Original Manuscript: January 6, 1995
Revised Manuscript: June 9, 1995
Published: March 20, 1996

Citation
M. Ahmad, K. Chelapathi, and Y. G. K. Patro, "Effect of water vapor in a y-cut lithium niobate waveguide," Appl. Opt. 35, 1489-1491 (1996)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-35-9-1489


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References

  1. C. S. Tsai, ed., Guided-Wave Acousto-Optics (Springer-Verlag, Berlin, 1990), p. 127.
  2. T. Tamir, ed., Guided-Wave Optoelectronics (Springer-Verlag, Berlin, 1990), p. 175.
  3. J. L. Jackel, V. Ramaswamy, S. P. Lyman, “Elimination of outdiffused surface guiding in titanium-diffused LiNbO3,” Appl. Phys. Lett. 38, 509–511 (1981).
  4. O. Eknoyan, A. S. Greenblatt, W. K. Burns, C. Bulmer, “Characterization of Ti:LiNbO3 deep waveguides diffused in dry and wet oxygen ambient,” Appl. Opt. 25, 737–739 (1986).
  5. T. Nozawa, H. Miyazawa, S. Miyazawa, “Water vapour effects on titanium diffusion into LiNbO3 substrates,” Jpn. J. Appl. Phys. 29, 2180–2185 (1990).
  6. M. De Sario, M. N. Armenise, C. Canali, A. Carnera, P. Mazzoldi, G. Celotti, “TiO2, LiNb3O8, and (TixNb1−x)O2 compound kinetics during Ti:LiNbO3 waveguide fabrication in the presence of water vapours,” J. Appl. Phys. 57, 1482–1488 (1985).
  7. C. E. Rice, R. J. Holmes, “A new rutile structure solid-solution phase in the LiNbO3O8–TiO2 system, and its role in Ti diffusion into LiNbO3,” J. Appl. Phys. 60, 3836–3839 (1986).

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