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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 16, Iss. 17 — Aug. 18, 2008
  • pp: 13296–13303

Continuously phase-matched terahertz difference frequency generation in an embedded-waveguide structure supporting only fundamental modes

Chad Staus, Thomas Kuech, and Leon McCaughan  »View Author Affiliations

Optics Express, Vol. 16, Issue 17, pp. 13296-13303 (2008)

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We demonstrate an all-single mode structure which enables continuous phase matching of difference frequency generated THz light from the near-IR. This structure provides a long interaction length by way of well-confined collinear propagation of pumps and product without diffraction, resulting in high conversion efficiency. A LiNbO3 version of this structure achieved a power-normalized conversion efficiency of 1.3×10-7 W-1 - some 23 times larger than the largest previously reported results.

© 2008 Optical Society of America

OCIS Codes
(130.3730) Integrated optics : Lithium niobate
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(190.4223) Nonlinear optics : Nonlinear wave mixing
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Nonlinear Optics

Original Manuscript: July 1, 2008
Revised Manuscript: August 8, 2008
Manuscript Accepted: August 8, 2008
Published: August 13, 2008

Chad Staus, Thomas Kuech, and Leon McCaughan, "Continuously phase-matched terahertz difference frequency generation in an embedded-waveguide structure supporting only fundamental modes," Opt. Express 16, 13296-13303 (2008)

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