A birefringent phase-matching scheme for difference frequency generation in a slotted air-clad waveguide with tunable gap width is proposed and theoretically analyzed. Tunability of 300 cm<sup>-1</sup>and efficiency of 200 W<sup>-1</sup>cm<sup>-2</sup>is predicted.
© 2009 The Optical Society
J. B. Khurgin, T. H. Stievater, M. W. Pruessner, and W. S. Rabinovich, "Design of Suspended AlGaAs Waveguides for Tunable Difference Frequency Generation in Mid-IR," in Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper CFR1.
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