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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 18, Iss. 3 — Feb. 1, 2010
  • pp: 2332–2338

AlxGa1-xAs nested waveguide heterostructures for continuously phase-matched terahertz difference frequency generation

C. M. Staus, T. F. Kuech, and L. McCaughan  »View Author Affiliations


Optics Express, Vol. 18, Issue 3, pp. 2332-2338 (2010)
http://dx.doi.org/10.1364/OE.18.002332


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Abstract

We previously demonstrated a nested pair of single mode (pump/THz) waveguides which produced guided far-infrared (1.3 THz) light with a record power-normalized conversion efficiency of 1.3x10−7 W−1 by way of continuous phase matched difference frequency generation (DFG) [Opt. Express 16, 13296 (2008)]. Using the same numerical simulation tools we used to design and model this LiNbO3-based device, we show that a lattice-matched AlGaAs heterostructure, with its significantly lower absorption losses, can produce guided far-infrared light (3.5 THz) with a power-normalized conversion efficiency of 1.3 x 10−5 W−1 – some 100 times larger than achieved with the LiNbO3 structure.

© 2010 OSA

OCIS Codes
(190.4390) Nonlinear optics : Nonlinear optics, integrated optics
(190.5970) Nonlinear optics : Semiconductor nonlinear optics including MQW
(190.4223) Nonlinear optics : Nonlinear wave mixing
(310.6845) Thin films : Thin film devices and applications

ToC Category:
Nonlinear Optics

History
Original Manuscript: November 19, 2009
Revised Manuscript: January 9, 2010
Manuscript Accepted: January 11, 2010
Published: January 21, 2010

Citation
C. M. Staus, T. F. Kuech, and L. McCaughan, "AlxGa1-xAs nested waveguide heterostructures for continuously phase-matched terahertz difference frequency generation," Opt. Express 18, 2332-2338 (2010)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-18-3-2332


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References

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