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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 20 — Oct. 15, 2009
  • pp: 3205–3207

Integrated acousto-optic polarization converter in a Z X -cut LiNbO 3 waveguide superlattice

D. Yudistira, D. Janner, S. Benchabane, and V. Pruneri  »View Author Affiliations

Optics Letters, Vol. 34, Issue 20, pp. 3205-3207 (2009)

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We report an integrated acousto-optic polarization converter exploiting a novel surface acoustic superlattice (S-ASL) transducer. The S-ASL transducer is made of a Z X -cut periodically poled lithium niobate (PPLN) crystal with uniform coplanar electrodes for surface acoustic wave (SAW) generation. For a PPLN period of 20 μ m the SAW is excited at an rf of about 190 MHz, while the phase matching occurs at an optical wavelength of around 1456 nm. The measured mode conversion efficiency of 90% at an input rf power of 1 W and the 3 dB optical bandwidth of 2.5 nm confirm the confinement of the SAW between the electrode gap and the constructive interaction along the whole 10 mm electrode length.

© 2009 Optical Society of America

OCIS Codes
(120.2440) Instrumentation, measurement, and metrology : Filters
(130.2790) Integrated optics : Guided waves
(130.3120) Integrated optics : Integrated optics devices
(130.3730) Integrated optics : Lithium niobate
(230.1040) Optical devices : Acousto-optical devices
(130.2260) Integrated optics : Ferroelectrics

ToC Category:
Integrated Optics

Original Manuscript: July 8, 2009
Revised Manuscript: August 21, 2009
Manuscript Accepted: September 11, 2009
Published: October 13, 2009

D. Yudistira, D. Janner, S. Benchabane, and V. Pruneri, "Integrated acousto-optic polarization converter in a ZX-cut LiNbO3 waveguide superlattice," Opt. Lett. 34, 3205-3207 (2009)

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