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Applied Optics

Applied Optics


  • Vol. 19, Iss. 4 — Feb. 15, 1980
  • pp: 591–597

Optical properties of titanium-diffused LiNbO3 strip waveguides and their coupling-to-a-fiber characteristics

Masaharu Fukuma and Juichi Noda  »View Author Affiliations

Applied Optics, Vol. 19, Issue 4, pp. 591-597 (1980)

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Optical propagation losses and coupling losses in Ti-diffused strip waveguides, fabricated in y-plate and z-plate LiNbO3, have been examined at 1.15-μm wavelength. Propagation losses for y-plate and z-plate waveguides are ~0.5 dB/cm. Coupling losses in the y-plate and z-plate waveguides for a single-mode fiber are 2.5 and 1 dB, respectively. This difference is due to the large surface diffusion anisotropy; it is expressed by near-field pattern overlap calculations.

© 1980 Optical Society of America

Original Manuscript: May 30, 1979
Published: February 15, 1980

Masaharu Fukuma and Juichi Noda, "Optical properties of titanium-diffused LiNbO3 strip waveguides and their coupling-to-a-fiber characteristics," Appl. Opt. 19, 591-597 (1980)

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