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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 17, Iss. 26 — Dec. 21, 2009
  • pp: 24261–24268

Lithium niobate photonic wires

H. Hu, R. Ricken, and W. Sohler  »View Author Affiliations

Optics Express, Vol. 17, Issue 26, pp. 24261-24268 (2009)

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LN photonic wires of cross-section dimensions down to 1 × 0.73 µm2 were fabricated by Ar milling of a single-crystalline LiNbO3 (LN) film bonded to a SiO2/LiNbO3 substrate. Mode intensity distributions, propagation losses, and group indices of refraction were measured at 1.55 µm wavelength and compared with simulation results. Moreover, effective mode indices and end face reflectivities were numerically evaluated. The waveguide of 1 µm top width is the smallest LN photonic wire reported to date; it has a mode size of ~0.4 µm2 (0.5 µm2) only and propagation losses of 9.9 dB/cm (12.9 dB/cm) for qTM (qTE) polarization.

© 2009 OSA

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.3130) Integrated optics : Integrated optics materials
(160.3730) Materials : Lithium niobate
(230.7370) Optical devices : Waveguides
(310.0310) Thin films : Thin films

ToC Category:
Integrated Optics

Original Manuscript: October 7, 2009
Revised Manuscript: December 14, 2009
Manuscript Accepted: December 14, 2009
Published: December 18, 2009

H. Hu, R. Ricken, and W. Sohler, "Lithium niobate photonic wires," Opt. Express 17, 24261-24268 (2009)

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