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Chinese Optics Letters

Chinese Optics Letters


  • Vol. 2, Iss. 2 — Feb. 10, 2004
  • pp: 89–91

A waveguide polarizer based on Si-coated Ti:LiNbO3 planar structure

Hangyou Lin, Jiping Ning, and Fan Geng  »View Author Affiliations

Chinese Optics Letters, Vol. 2, Issue 2, pp. 89-91 (2004)

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A novel design of a transverse magnetic (TM)-pass waveguide polarizer based on Si on an X-cut, Y-propagation Ti:LiNbO3 planar waveguide is presented. The eigenvalue functions of such structure have been obtained by using Wenzel-Kramers-Brillouin (WKB) method with modified Airy functions. The intervals of the silicon thickness have been found which result in transverse electric (TE) light suffering strong attenuation while TM wave propagating with fairly low loss. A planar waveguide polarizer is fabricated and its polarization-dependent measurements lead to the best polarization extinction ratio ~34 dB and the insertion loss <0.4 dB.

© 2005 Chinese Optics Letters

OCIS Codes
(130.0130) Integrated optics : Integrated optics
(130.1750) Integrated optics : Components
(130.3730) Integrated optics : Lithium niobate

Hangyou Lin, Jiping Ning, and Fan Geng, "A waveguide polarizer based on Si-coated Ti:LiNbO3 planar structure," Chin. Opt. Lett. 2, 89-91 (2004)

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